Sinabung (Sumatra, Indonesia): A series of strong pyroclastic flows occurred yesterday 28 April 2015, reaching 3-4.5 km distance. The largest, at 18:20 local time touched and burnt the (evacuated) village of Guru Kinayan on the southern slope of the volcano.
The flows, at least 9 in total, were results of the partial collapse of the recently emplaced lava lobe on the steep upper flank. They occurred at 17:02, 17:20, 17:33, 17:44, 17:47, 17:50, 18:03, 18:20 (probably the largest one), and at 19:52 local time.
Dempo (Sumatra): PVMBG raised the alert level of the volcano to 2 (waspada, “watch” on a scale of 1-4) because of increased seismic activity (mainly tremor and volcanic-tectonic earthquakes).
It is recommended not to approach the crater within 1 km.
The volcano’s crater contains a large acid lake and a very active hydrothermal system. Phreatic or phreatomagmatic explosions could occur any time and would pose a significant risk.
Piton de la Fournaise (La Réunion): A new eruption could be on its way at the volcano.
A sharp increase in volcanic CO2 emissions, significant deformation of the Dolomieu crater, and a migration of earthquakes from deep to shallow (7 km) levels, as well as earthquakes near the surface itself that have appeared over the past weekend suggest new magma is on its rise to a possible new eruption, which would be the second in 2015.
The prefecture raised the alert to level 1 (“eruption likely”) and closed access to the Enclos Fouqué this morning.
The volcano observatory considered two scenarios most likely:
Continue reading at Volcano Discovery: Volcanoes Today, 30 Apr 2015: Dempo volcano, Piton de la Fournaise, Sinabung