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SI/USGS Weekly Volcanic Activity Report, 22 April 2009 – 28 April 2009 30 April 2009

Posted by admin in activity reports, Alaska, Bagana, Barren Island, Batu Tara, Caribbean, Chaitén, Chile, Colombia, Dukono, Ebeko, Ecuador, eruptions, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kerinci, Kilauea, Koryaksky, Krakatau, Llaima, Pacaya, Papua New Guinea, Rabaul, Redoubt, Reventador, Russia, Sakura-jima, Santa María, Shiveluch, Slamet, Soufrière Hills, Suwanose-jima, Tungurahua, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 22 April 2009 - 28 April 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 22 April 2009 to 28 April 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Bagana (Papua New Guinea), Ebeko (Paramushir Island, Russia), Galeras (Colombia), Pagan (Mariana Islands), Reventador (Ecuador), Shiveluch (Kamchatka, Russia), Slamet (Java, Indonesia).

Ongoing activity: Barren Island (Andaman Islands), Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Dukono (Halmahera, Indonesia), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kerinci (Sumatra, Indonesia), Kilauea (Hawaii, USA), Koryaksky (Kamchatka, Russia), Krakatau (Indonesia), Llaima (Chile), Pacaya (Guatemala), Rabaul (Papua New Guinea), Redoubt (Alaska, USA), Sakura-jima (Japan), Santa María (Guatemala), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador).


Volcanic activity in Indonesia: Kerinci and Krakatau 21 April 2009

Posted by admin in activity reports, Indonesia, Kerinci, Krakatau.
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News of volcanoes stirring in Indonesia, one of the most volcanically active parts of the globe.

Mount Kerinci, Sumatra, Indonesia (picture by Tom Casadevall, USGS, 1987)
Mount Kerinci, Sumatra, Indonesia. Picture by Tom Casadevall, USGS, 1987.

Mount Kerinci on Sumatra, the highest volcano in Indonesia (3800 metres a.s.l.) and one of the most active, is reported to be producing small explosions, ‘discharges of dust’ and ‘repeated tremors’ and threatening the populated area at the foot of the mountain. The Kerinci Observation Post has warned local people to wear masks when going out of doors. The Indonesian Volcanological Authority alert level for Kerinci is thus far still at the second-lowest level of Yellow (Waspada).

Anak Krakatau, the young volcano emerging in the Sunda Strait on the site of the famous 1883 ‘Krakatoa’ eruption, is apparently causing alarm among local people, some of whom have been leaving their homes in the belief that a major eruption is imminent. The volcano has been producing explosions and eruptions of ash, but the volcanological authorities say that the activity is not unusual and people should not panic. The alert level for Anak Krakatau remains unchanged at Yellow (Waspada). There seems to be a mismatch between what the scientists say Anak Krakatau is up to and what local people perceive: Dr Erik Klemetti has more on this at Eruptions.

For all our Indonesia coverage: Indonesia « The Volcanism Blog.

Sumatran volcano shows intensified volcanic activityThe Jakarta Post, 21 April 2009
Lampung residents told not to panic as Mt. Anak Krakatau spews ashThe Jakarta Post, 21 April 2009

Global Volcanism Program: Kerinci – summary information for Kerinci (0601-17=)
Global Volcanism Program: Krakatau – summary information for Krakatau (0602-00=)

The Volcanism Blog