Lava dome continues to grow
Posted by JAC on 10/15/2009, 8:37 am



Activity on Oct 14 has continued at a slightly lower level than previous days, however rockfalls and small pyroclastic flows continue to be generated regularly.



An observation flight showed extensive growth of the lava dome on the southern side, although cloud obscured the other faces. The full extent of pyroclastic flows associated with lava dome growth and collapse over the last six days is now known. Pyroclastic flow deposits extend to 3 km down the White River valley to the south; 1 km down Gages valley to the west; 2.5 km down Tyers Ghaut to the north-northwest. In the last 24 hours pyroclastic flows have begun to move down Tuitts Ghaut and into Whites Ghaut, reaching 3 km to the northeast. No pyroclastic flow deposits were identified in the Tar River valley associated with this renewed phase of dome growth.


Owing to the southeasterly wind direction the ash plume is being blown towards inhabited areas such as Old Towne, Salem, Friths, and Woodlands causing ash fall and ashy rain. Current weather forecasts indicate that the wind should change back to the east sometime on October 15.


Heavy rainfall generated mudflows in the Belham valley this morning and the new pyroclastic flow deposits in Tyers Ghaut and on Farrells plain are steaming vigorously. The MVO continues to monitor the volcano intensely.




MVO 5:00 pm October 14, 2009
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Pyroclastic flows on Soufriere Hills - JAC, 10/12/2009, 11:10 am
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