Montserrat Volcano Observatory

Daily Report
Report for the period 16:00 on 9 November
to 16:00 on 10 November 1995

Nine (9) earthquakes were located during the period under review. The events were scattered beneath the Soufriere Hills Volcano and other areas within a few kilometers to the north of the active zone. The events were mainly volcano-tectonic with focal depths in the range 0-4km. Three (3) long period events were also recorded.

There were four eruption signals recorded during this period. These occurred at 01:45, 04:20, 13:48 and 15:35 on the 10/11/95. The latter event produced a plume of ash and steam which rose to an estimated height of 1500 m (5000 ft) above English's Crater. This plume was blown in a south-westerly direction towards the Broderick's-Kinsale area.

All of the EDM stations were remeasured today. Only the Tar River data has been processed so far. It indicates a continuation in the shortening trend observed previously. The rate and total amount of shortening remain below levels of concern.

An attempt to examine English's Crater from Chances Mt. was aborted due to the eruption which occurred in mid afternoon. Low cloud cover prevented earlier attempts.

Dr. William Ambeh, Mr. Richard Robertson and Dr. Paul Jackson returned to Trinidad today.

Montserrat Volcano Observatory