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Eruption at Soufrière Hills throws up ash plume 5 October 2009

Posted by admin in activity reports, Caribbean, eruptions, Soufrière Hills.
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Soufrière Hills volcano on the Caribbean island of Montserrat erupted on the evening of 4 October (local time), producing an ash plume reported by Washington VAAC to have reached FL100 (10000 ft/3000 m), and possibly as high as FL160 (16000 ft/4800 m). The Montserrat Volcano Observatory (MVO) reports:

Activity on the volcano has increased overnight. Starting at around 9:00 pm local time (on 4th October) there was a short swarm of VT earthquakes. This was then followed at around 10:00 pm by a period of tremor associated with vigorous ash venting which generated considerable ash plumes that drifted west north west across the island and out to sea. Only a very light dusting of ash fell in Old Towne and Olveston as the plumes moved to the south of the inhabited areas.

No pyroclastic activity or pyroclastic flows have been associated with the current activity. The MVO reports that on the morning of 5 October intermittent ash venting continued with plumes being emitted, but without significant further seismicity. ‘Further ash plumes are likely to result from these venting pulses and ashfall could occur in inhabited areas such as Old Towne, Salem and Olveston depending on the wind direction’, says the MVO, noting that ‘This activity demonstrates that activity can increase at anytime without any real warning’.

For all our Soufrière Hills coverage: Soufrière Hills « The Volcanism Blog.

Montserrat volcano shoots plume of ash into the sky – Associated Press, 5 October 2009

Global Volcanism Program: Soufrière Hills – information about Soufrière Hills volcano (1600-05=)
Montserrat Volcano Observatory – detailed and up-to-date information from the MVO

The Volcanism Blog



1. Soufrière Hills from space – NASA Earth Observatory images « The Volcanism Blog - 7 October 2009

[…] volcano on the Caribbean island of Montserrat ended 10 months of relative quiet this week with some vigorous eruptions of ash. The NASA Earth Observatory has released the MODIS true-colour satellite image […]

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