Active volcanoes in the world: July 18 – July 24, 2012

Active volcanoes in the world: July 18 – July 24, 2012

New unrest has been noticed around 4 volcanoes, ongoing activity was reported for 12 volcanoes. This report covers active volcanoes in the world recorded from July 18 – July 24, 2012 based on Smithsonian/USGS criteria.CUMBAL, Colombia0.95°N, 77.87°W; summit

The new powerful explosions at Sakurajima volcano, Japan

The new powerful explosions at Sakurajima volcano, Japan

Sakurajima volcano continues to be particularly active. The volcano has been having more than usual frequent and stronger explosions during the past months according to Volcano Discovery.The new powerful explosion occurred on July 24  from  the less frequ

Mt. Tongariro shows more volcano activity with volcanic gas

Mt. Tongariro shows more volcano activity with volcanic gas

Seismicity at Mt. Tongariro, New Zealand looks to have decreased a lot yesterday and today. GNS science reported however today that : “Provisional analysis of the gas samples collected at the weekend indicates the presence of volcanic gas. Our historic sampling has

Volcano alert level raised for Mt. Tongariro volcano, New Zealand

Volcano alert level raised for Mt. Tongariro volcano, New Zealand

On July 20, 2012, GeoNet raised the Volcano Alert Level at Mt. Tongariro, New Zealand after a series of quakes beneath the volcanic complex. The Aviation Color Code is now at Yellow and Volcanic Alert Code at 1. Small volcanic earthquakes have been recorded beneath…

Active volcanoes in the world: July 11 – July 17, 2012

Active volcanoes in the world: July 11 – July 17, 2012

New unrest has been noticed around 3 volcanoes, ongoing activity was reported for 12 volcanoes. This report covers active volcanoes in the world recorded from July 11 – July 17, 2012 based on Smithsonian/USGS criteria.CUMBALColombia 0.95°N, 77.87°W; summit

Rincón de la Vieja volcano visits prohibited due to increased activity

Rincón de la Vieja volcano visits prohibited due to increased activity

Following an increase in its volcanic activity, visits to the crater of Rincón de la Vieja Volcano, in the northwestern province of Guanacaste, Costa Rica, are prohibited until further notice.Volcanologist Raúl Mora, from the National Seismological Network,

New hydrothermal vents at Anak Krakatau volcano

New hydrothermal vents at Anak Krakatau volcano

The magma column at lava dome had dropped in mid to late May and the dome collapsed. An intense degassing from numerous fumaroles inside and outside of the now large summit crater is observed. Anak Krakatau is at the moment in a phase of repose.At least four areas

Active volcanoes in the world: June 27 – July 3, 2012

Active volcanoes in the world: June 27 – July 3, 2012

New unrest has been noticed around 5 volcanoes, ongoing activity was reported for 10 volcanoes. This report covers active volcanoes in the world recorded from June 27 – July 3, 2012 based on Smithsonian/USGS criteria.FUEGO, Guatemala14.473°N, 90.880°W; summit

The 20th century’s greatest volcanic eruption: Mt. Katmai 100 years later

The 20th century’s greatest volcanic eruption: Mt. Katmai 100 years later

Bill Burton discusses the June 6-8, 1912 eruption of Mount Katmai in Alaska which was 30 times larger than the eruption of Mt. St. Helens in 1980. This eruption caused widespread devastation, and inspired heroic efforts at survival by the local people. Burton returns

Batu Tara volcano emits plume

Batu Tara volcano emits plume

Active since 2006, Batu Tara continues to puff away. A thin volcanic plume streams northwest from the cloud-shrouded volcano. Based on analyses of satellite imagery, the Darwin VAAC reported that on 19 June ash plumes from Batu Tara rose to an altitude of 2.4 km