Tambora volcano, Sumbawa, Indonesia: news & activity updates

Tambora volcano (Sumbawa, Indonesia) activity update: no activity in recent months, alert lowered back to normal

Since January, no plumes, changes or seismic activity were observed around the Tambora caldera. On 9 April the Alert Level was lowered to 1 (on a scale of 1-4).

Tambora volcano (Sumbawa Island, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 April-10 April 2012 (Continuing Activity)

CVGHM reported that during January-8 April plumes did not rise from Tambora, no changes were observed around the caldera, and seismicity decreased. On 9 April the Alert Level was lowered to 1 (on a scale of 1-4). Read all

Earthquake swarm near Tambora volcano (Sumbawa Island, Indonesia) 16-17 Feb

A swarm of earthquakes has occurred near Tambora volcano on 16 and 17 February. About 12 quakes larger than magnitude 2 were recorded at depths between 10 and 40 km, concentrated in an area near the coast about 30 km NE of the volcano. The largest quake a 4.8M quake at 18:12:39 WIB on 16 February. Read all

Tambora volcano (Sumbawa Island, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 12 October-18 October 2011 (New Activity / Unrest)

CVGHM reported that during 22 September-9 October plumes did not rise from Tambora; seismicity fluctuated, but declined overall. Based on visual observations, deformation data, and seismicity, the Alert Level was lowered to 2 (on a scale of 1-4) on 9 October. Read all

Tambora volcano (Sumbawa Island, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 September-13 September 2011 (New Activity / Unrest)

Based on visual observation and seismic data, CVGHM reported an increase in activity at Tambora that started in April. Therefore, on 30 August, the Alert Level was raised to 2 (on a scale of 1-4). During 30 August-8 September seismicity continued to increase. Read all

Tambora volcano (Sumbawa Island, Indonesia): signs of reawakening

Tambora volcano in Indonesia is beginning to show signs of life. Since April this year, there have been intermittent swarms of small earthquakes, which repeated themselves towards the end of August. Activity have slowly increased, steam clouds have been observed rising up to the rim of the caldera and the earthquake activity has picked up a bit, too. The alarm level have been raised to 2.

Tambora volcano (Sumbawa Island, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 August-30 August 2011 (New Activity / Unrest)

Based on visual observation and seismic data, CVGHM reported an increase in activity at Tambora during the previous five months. Ground-based observers at an observation post in Tambora village noted dense white plumes rising 50-75 m above the caldera rim during April and June, but no plumes during May or July. In August dense white plumes rose 20 m above the caldera rim. Read all