Stromboli (Eolian Islands, Italy): No significant changes have occurred. The lava flow(s) erupted from the vent at 650 m elevation on the northern base of the crater continue to be active on the upper part of the Sciara del Fuoco only. Compared to previous days, the flow has been weaker today.
Bardarbunga (Iceland): Activity continues with little changes and remains quite intense.
The Icelandic Coast Guard made an aerial survey of the eruption site. According to IMO, the fissure is 1.5 km long, but only erupts from a 600-800 m long central section.
A single crater has been active at its southern end, but little or no lava extrudes from it now. Lava fountains rise to a height of a few tens of meters where the activity is greatest, centrally on the fissure.
The lava flow field stretches 3,5 km from the center of the fissure and is max 1,6 km wide, with a 500 m wide flow front. So far, approx 4.5 square km have been covered by the lava flows. The University of Iceland published an updated map.
At 16:00, a rough estimate gave a total volume of 20-30 million cubic meters of lava erupted so far, meaning that 5-10 million cubic meters had been added in 18-19 hours. Therefore, the average flow is now of the order of degree 100 m3/s.
Kilauea (Hawai’i): The June 27 lava flow remains active and is now only approx. 2 km from the nearest inhabited area. Its farthest front had been spreading in the forest over the past few days and was seen to be spilling into yet another ground crack about 12.6 km (~7.8 miles) from the vent and about 1.9 km (~1.2 miles) from the eastern boundary of the Wao Kele o Puna Forest Reserve.
San Miguel (El Salvador): Seismic activity, in particular the level of internal vibration (tremor), has increased again at the volcano. This follows a month of lower values detected.