Montserrat Volcano Observatory


Daily Report
Report for the period from 16:00 on 01 October
to 16:00 on 03 October 1995


The observatory was moved from the Vue Pointe Hotel to Eifel House on Bishop View Road in Old Towne on 01 October 1995 and monitoring of the volcano by several different techniques continues.

A phreatic eruption at around 18:00 on 01 October deposited ash in areas from Cork Hill to Gingoes, including Plymouth. This ash emission event was followed by a series of volcano-tectonic earthquakes of which about 70 were located. The earthquake epicentres were mainly beneath the Soufriere Hills at shallow depths (1-6 km). Two of the earthquakes which occurred at around 22:57 and 23:19 and had magnitudes of about 2.5 were felt at the Observatory while several were reported felt in the Long Ground area. Since about 05:00 on 02 October 1995, the rate of earthquake occurrence has decreased to about 5 located events per day. Two episodes of low amplitude broadband tremor have also been recorded.

Electronic tiltmeter observations revealed no genuine deformation events. Electronic Distance Meter (EDM) measurements at Tar River do not show very significant changes. The area of deformation within English's Crater as viewed by field parties during the past three days continues to exhibit interesting changes. It will continue to be closely watched by the scientific team.


Montserrat Volcano Observatory