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Volcanic activity worldwide 7 May 2015: Turrialba volcano, Batu Tara, Bulusan, Sinabung, Hakone

Thu, 7 May 2015, 21:00
21:00 PM |
Earthquakes under Hakone volcano (JMA)
Earthquakes under Hakone volcano (JMA)
Sinabung's new lava lobe on 5 May 2015 (photo: Mbah Lëwå / facebook)
Sinabung's new lava lobe on 5 May 2015 (photo: Mbah Lëwå / facebook)
Eruption of Turrialba on 4 May with ejected bombs (arrows) (OVSICORI-UNA)
Eruption of Turrialba on 4 May with ejected bombs (arrows) (OVSICORI-UNA)
Hakone (Honshu): An eruption warning has been declared for the volcano, as increased seismic activity under the Ōwakudani hydrothermal field were registered during the past days and could herald sudden phreatic explosions.
The Owakudani valley lies north of the central lava domes inside the Hakone caldera. Seismicity started to increase in late April, consisting mostly of swarms of shallow quakes at 2 and 5 km depth. More intense swarms have occurred during the past days, triggering the Japan Meteorological Agency (JMA) to raise the alert level of the volcano to 2.
... [read more]

Bulusan (Luzon Island, Philippines): (7 May) New, sporadic explosions have occurred at the volcano since 1 May, ejecting small plumes of ash. PHILVOLCS raised the alert level to 1 and an exclusion zone of 4 km around the volcano is in place.
According to the monitoring volcanologists, the activity has been phreatic in origin, i.e. caused by overheated ground-water rather than fresh magma at the surface.
... [read more]

Batu Tara (Sunda Islands, Indonesia): Several ash plumes were detected on satellite imagery during the past days, suggesting a phase of elevated activity.

Sinabung (Sumatra, Indonesia): The lava dome and its viscous lobe continue to grow slowly at the summit. It is probably only a matter of time until new collapses again trigger potentially very dangerous.

Turrialba (Costa Rica): (7 May) A new series of weak to moderately powerful eruptions have occurred at the volcano during the past days.
A small and short ash eruption occurred on 1 May, with a plume of a few hundred meters height. On 4 May, a more intense eruption occurred at 13:20 local time, ejecting an ash column that rose 2.5 km and caused ash fall in areas of the Central Valley to the west, before drifting over the Pacific 100 km distance.
... [read more]
Previous news
Mon, 4 May 2015, 21:00
Explosion at Tungurahua on 27 April 2015 (IGEPN)
Tungurahua (Ecuador): (3 May) 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. ... read all
Sun, 3 May 2015, 23:00
Steam and ash plume from Klyuchevskoy volcano today
Kliuchevskoi (Kamchatka): Activity at the volcano, probably strombolian-type explosions from the summit vent, has increased during the past days. ... read all
Fri, 1 May 2015, 21:00
Ash column erupted from Calbuco today
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. ... read all
Thu, 30 Apr 2015, 21:00
Pyroclastic flow at Sinabung yesterday at 18:20 (image: @endrolewa / twitter)
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. ... read all
Wed, 29 Apr 2015, 21:00
Overflow of Kilauea's summit lava lake early this morning
Kilauea (Hawai'i): For the first time since its appearance in 2008, the lava lake has spilled over into the floor of Halema'uma'u crater. ... read all

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