Volcanic Activity

Map of today’s active volcanoes-Volcano Discovery

Source: Volcano Discovery

Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION OBS TO FL080 OBS VA DTG:25/1830Z
…25 Sep:
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION TO FL080 EXT TO N.

Colima (Western Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EM SEEN IN WEBCAM AND STLT.

Popocatépetl (Central Mexico): (25 Sep) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: EM REPORTED AT 25/0615Z

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBS
…25 Sep:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ERUPTION IN WEBCAM ARND 25/0115Z

Lascar (Northern Chile): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: PILOT REPORT AT 1247Z OBS VA DTG:22/1435Z

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 29 Aug 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian explosions in El Agrio crater (updated 29 Aug 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 25 Aug 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 15 Sep 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 9 Sep 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Piton de la Fournaise (La Réunion): eruption ended 18 Sep 2016 (updated 19 Sep 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 22 Aug 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 25 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 2 Sep 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Aug 2016)
Turrialba (Costa Rica): sporadic ash emissions (updated 21 Sep 2016)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 15 Sep 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide

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New ash emissions from Turrialba this morning (image: Juan K Matamoros / RSN / facebook)

Source: Volcano Discovery

Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA EMISSIONS CONTINUING OBS VA DTG:21/1120Z
…20 Sep:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20160920/2119Z FL270 EXTD E REPORTED OBS VA DTG:20/2120Z

Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA EMISSIONS CONTINUING OBS VA DTG:21/0520Z

Dukono (Halmahera): (21 Sep) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION TO FL100 OBS VA DTG:21/0500Z

Yasur (Tanna Island, Vanuatu): Volcanic Ash Advisory Center Wellington (VAAC) issued the following report: CONTINUOUS LOW LEVEL ASH EMISSION OBS VA DTG:21/1551Z
…20 Sep:
Volcanic Ash Advisory Center Wellington (VAAC) issued the following report: CONTINUOUS LOW LEVEL ASH EMISSION OBS VA DTG:20/2227Z

Kilauea (Hawai’i): (21 Sep) Following the inflation cycle that began 2 days ago (and might be now turning into deflation), the lava lake in the Halema’uma’u summit crater has risen again into clear view from the HVO observatory. This morning, its surface was only 12 m (39 ft) below the rim.
An explosion of the lava lake was observed yesterday around 21:15 local time – probably triggered by a larger rockfall from the unstable crater walls, a fountain of incandescent material rose from the NE end of the lake to about the outer rim near the old overlook area, generating a plume of steam and ash that rose several hundred meters and quickly dissipated SW.
The two sea entries at Kamokuna remain active and well alimented; additionally, active pahoehoe breakouts are present about 2 km (1.2 mi) inland from the coast and higher up on the pali.

Turrialba (Costa Rica): After a day of relative calm, a new pulse of ash emissions occurred from the volcano this morning.
The current phase of activity at the volcano began around 13 Sep with renewed, but sporadic and weak ash emissions, but intensified drastically on 19 Sep reaching a new peak of activity (so far). Between 02:53 and 15:30 local time, the volcano produced several phases of near-continuous explosive activity with strong ash emissions, generating several ash plumes that rose more than 1000 m, drifted west into the Central Valley, causing moderate to heavy ash falls and forcing a temporary closure of the capital’s Juan Santamaria International Airport.
 
Some of the explosions were strong enough that part of the dense eruption columns collapsed into small pyroclastic flows that spread onto the crater floor. There are no reports of damage or injuries.
4 eruptive pulses on 19 Sep 2016:

…21 Sep:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: CONS EM
…21 Sep:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: EMS AT 20/1856Z AND 20/2003Z

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 29 Aug 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian explosions in El Agrio crater (updated 29 Aug 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 25 Aug 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 29 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 9 Sep 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Piton de la Fournaise (La Réunion): new fissure eruption since 11 Sep 2016 (updated 11 Sep 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 22 Aug 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 25 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 2 Sep 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide

Satellite image of Shiveluch volcano on 16 Sep 2016

Source: Volcano Discovery

Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA EMISSIONS CONTINUING OBS VA DTG:16/1120Z

Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20160916/0850Z FL120 EXTD NW OBS VA DTG:16/0940Z

Bulusan (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20160916/0906Z FL110 EXTD NE REPORTED OBS VA DTG:16/0900Z

Dukono (Halmahera): (15 Sep) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA OBS TO FL080 EXT 35NM TO NE AT 15/2250Z.

 

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 29 Aug 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian explosions in El Agrio crater (updated 29 Aug 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 25 Aug 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 29 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 9 Sep 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Piton de la Fournaise (La Réunion): new fissure eruption since 11 Sep 2016 (updated 11 Sep 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 22 Aug 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 25 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 2 Sep 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide

Satellite image of Dukono volcano on 6 Sep 2016

Source: Volcano Discovery

Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA EMISSIONS CONTINUING OBS VA DTG:06/1720Z
…6 Sep:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20160906/0300Z FL250 EXTD NW OBS VA DTG:06/0400Z

Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSION LAST OBS TO FL080 MOV NW AT 06/0220Z.

Mauna Loa (Big Island, Hawai’i): A magnitude 4.0 earthquake occurred at 2.4 km depth beneath the summit caldera of the volcano half an hour ago (04:25 am in Hawaii).
Such relatively large quakes under active volcanoes can (but not necessarily must) be precursors of new eruptions if they are being caused by magma pressurizing rock and fracturing it on its way up. Whether this particular quake is in fact caused by magma movements is impossible to know a priori without further analysis.
Mauna Loa is statistically “due” for an eruption (its last having been in 1984) and increased seismic activity and inflation over the past years have indicated an ongoing period of unrest due to gradual magma recharge.

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EMS
…5 Sep:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: INCREASING ACTIVITY WITH VA EM.

Nevado del Ruiz (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ERUPTION IN WEBCAM AROUND 1338Z

Nevados de Chillán (Central Chile): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: VA REPORTED AT 06/1429Z OBS VA DTG:06/1435Z

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 29 Aug 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian explosions in El Agrio crater (updated 29 Aug 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 25 Aug 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 29 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 22 Aug 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 25 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 2 Sep 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 25 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): small active lava lake in summit crater (updated 23 Aug 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide

Steam/ash plume from Etna’s Voragine this morning

Source: Volcano Discovery

Etna (Sicily, Italy): Over the past weeks, the volcano’s activity (at Voragine and the New SE crater) has generally decreased and tremor levels are currently low.
While not entirely stopped, the emissions of hot incandescent gasses and ash, along with weak strombolian activity from the new vent in the Voragine crater have become less pronounced. Similarly, the sporadic ash emissions from the New SE, observed intermittently until at least Saturday, have ceased or become even rarer.
This could rapidly change, however.

Katla (Southern Iceland): At least one earthquake of magnitude 4.5 occurred this morning under the volcano, the strongest recorded for Katla in recent decades. It was felt in nearby areas.
The Icelandic Met Office (IMO) reported two quakes, one at 01:47:02 local time at 3.8 km depth 8.1 km east of the summit (Goðabunga) followed 20 seconds later by another magnitude 4.5 quake at 0.1 km depth. Caution is required as these data are from automatic calculations which could actually in fact describe only one quake.
… [read more] … [show less]
During the past 48 hours, IMO has detected 48 earthquakes – most of them tiny, but including 4 of magnitudes of 3 or higher – at shallow depths under Katla.

Klyuchevskoy (Kamchatka): The activity of the volcano, mainly effusive, remains intense. There are currently 3 active lava flows descending the steep stratovolcano: two parallel ones on the eastern-southeastern flank and a new one on the upper southwestern slope which has appeared about a week ago.
An intense thermal anomaly corresponding to the large output of lava is visible on satellite data.
Small ash plumes from strombolian activity in the summit crater have been producing plumes today that reached 20,000 ft (6 km) altitude and drifted eastwards today.

Bagana (Bougainville Island, Papua New Guinea): Low-level ash emissions occur at the volcano, producing a plume at estimated 7,000 ft (2.1 km) altitude drifting west from the volcano.
The latest Terra satellite image shows a narrow plume of mostly gas and possible light ash content extending about 70 km to the west of Bougainville Island.
A moderate thermal hot spot is visible on MODIS data and has increased recently. This suggests that the volcano’s activity (effusive or mildly explosive or both) has picked up recently.

Copahue (Chile/Argentina): Strombolian activity continues in the El Agrio crater at fluctuating, generally low intensity.
Occasionally, incandescent bombs are projected higher than the crater rim and small ash plumes rise up to a few hundred meters before dissipating.

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Chikurachki (Paramushir Island): ash emissions since 18 Aug 2016 (updated 19 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian activity from new intra-crater cone (updated 4 Jul 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 30 Jul 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 10 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 25 Jul 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 8 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 17 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): lava lake in summit crater, spattering, strombolian explosions (updated 4 Apr 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide

Explosion at Sakurajima’s Minamidake crater this morning

Source: Volcano Discovery

Sakurajima (Kyushu, Japan): The volcano has been getting more active again during the past night: a series of small explosions and associated ash emissions occurred from the older summit crater, Minamidake:

It will be interesting to see whether or not Sakurajima returns to its previously so typical style of intermittent, often quite powerful vulcanian-type explosions (at rates ranging from one every few days to several per day).

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: POSSIBLE VA EM AROUND 1828Z

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Chikurachki (Paramushir Island): ash emissions since 18 Aug 2016 (updated 19 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian activity from new intra-crater cone (updated 4 Jul 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 30 Jul 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 10 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 25 Jul 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 8 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 17 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): lava lake in summit crater, spattering, strombolian explosions (updated 4 Apr 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2016)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide 

Eruption plume from Santiaguito’s explosion this morning (image: CONRED)

Source: Volcano Discovery

Shiveluch (Kamchatka): The activity of the volcano remains essentially unchanged at currently low to moderate levels. The slow growth of the lava dome continues as viscous (sticky) lava accumulates in the dome. A (small) part of the inherently unstable dome collapsed yesterday morning and generated a pyroclastic flow that traveled down the SW valley between the dome and the remnants of the 1964 collapse scar, which forms a horse-show shaped wall around the dome.
The flow reached approx. 1500 m length and was 300-400 m wide. A second flow of similar size occurred immediately after. The resulting ash plume rose approx. 1 km.

Suwanose-jima (Ryukyu Islands): The volcano’s activity has picked up again. Since yesterday, webcam images show constant red glow and intense degassing as well as intermittent ash emissions some of which have also been reported by Tokyo VAAC.
Most likely, a new phase of intense strombolian activity is currently taking place at the active O-Take crater on the remote island.

Dukono (Halmahera): Continuous ash emissions have been observed during the past days. Satellite images show a plume extending into various directions (to the east today).
In short, the intense activity of the volcano (one of the most active of Indonesia) observed also during recent visits by various people seems to continue.

Yasur (Tanna Island, Vanuatu): Wellington VAAC reports ash plumes, mostly confined to Tanna Island, visible on satellite imagery today. This suggests that activity at the volcano is elevated at the moment. It is urrently at GeoHazard’s level 2, on a scale of 0-5 (5 being highest), meaning that “volcanic explosions remain intense, volcanic bombs may fall in and/or around the crater and volcanic gas and ashes can also affect some villages.”
Yasur is one of the few in the world with persistent strombolian activity, is elevated at the moment. We will visit the volcano again in September and report from on location.

Aoba (Vanuatu): Wellington VAAC received a pilot report of plumes of white steam and ash rising 1000 ft (300 m) above the active crater lake Voui this morning. This could suggest that perhaps some phreatic explosions have taken place, but it is far from certain whether the volcano (with almost no monitoring on ground) is about to erupt or not.
The remote location of the volcano’s large caldera and its extremely difficult make direct observations very rare.
 
According to GeoHazard, “Aoba probably should be considered at present times as the most dangerous volcano of the archipelago, due to the presence of a large lake in the main crater.”
Strong explosive eruptions have been frequent in the past, generating dangerous mud flows that left thick lahardeposits in the central part of Ambae island and up to the coastlines.

Santiaguito (Guatemala): The series of strong vulcanian explosions continues although they hve become rarer. This morning, another one occurred that produced a mushroom-shaped eruption column that rose to approx. 18,000 ft (6 km) altitude.
Partially collapsing parts of the eruption column generated moderately large pyroclastic flows on the eastern side and perhaps on the SW slope of the lava dome as well. As usual, ash falls have occurred in nearby towns and villages such as San Felipe and Mazatenango Retalulehu.

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 2016)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bristol Island (United Kingdom, South Sandwich Is): new eruption since late April 2016 (updated 21 Jul 2016)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Chikurachki (Paramushir Island): explosive activity since 27 July 2016 (updated 28 Jul 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 29 Jul 2016)
Copahue (Chile/Argentina): strombolian activity from new intra-crater cone (updated 4 Jul 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 12 Jul 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 30 Jul 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 25 Jul 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 2 Aug 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 1 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 24 Feb 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 25 Jul 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 5 Aug 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 29 Jul 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 5 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 2016)
Villarrica (Central Chile): lava lake in summit crater, spattering, strombolian explosions (updated 4 Apr 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 13 Nov 2015)

More continued coverage and updates at Volcano Discovery: Volcanic Activity Worldwide