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Volcanoes Today, 4 May 2015: Tungurahua volcano
Monday May 04, 2015 01:00 AM |
Explosion at Tungurahua on 27 April 2015 (IGEPN)
: Intermittent small explosions and ash emissions continue to occur from the volcano. However, its overall activity has been decreasing during the past weeks and the scenario of a larger eruption, which had been expected in early April, has been becoming more unlikely now.
Between 10-16 April, a seismic swarm of more than 3000 earthquakes occurred within 1-3 km below the summit of the volcano. This, as well as increased SO2 emissions and inflation of the NE flank of the cone suggested the arrival of a new batch of magma, which could have lead to a more intense phase of activity as on many past occasions. During late April, seismic activity decreased and the inflation switched to deflation, while gas emissions remained at similar levels.
It seems that the intrusion stopped for now and released its energy gradually by degassing and a number of smaller explosions.
Monday, May 04, 2015
: Activity at the volcano, probably strombolian-type explosions from the summit vent, has increased during the past days. ...
Friday, May 01, 2015
Calbuco (Southern Chile and Argentina)
: (30 Apr
) A strong explosive eruption occurred today (12:10 on 30 April, local time) at the volcano, producing an ash column that rose several kilometers above the summit crater. ...
Thursday, Apr 30, 2015
Sinabung (Sumatra, Indonesia)
: (29 Apr
) 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. ...
Wednesday, Apr 29, 2015
: For the first time since its appearance in 2008, the lava lake has spilled over into the floor of Halema'uma'u crater. ...
Tuesday, Apr 28, 2015
: (28 Apr
) The lava lake inside the summit caldera's Halema'uma'u crater has been constantly rising since 22 April and is now about to overflow. ...