Montserrat Volcano Observatory


Morning Report
Report for the period 5 p.m. 3 June
to 7 a.m. 4 June 1998


The volcano has been very quiet overnight with a few small volcano-tectonic earthquake and rockfall signals recorded by the seismic network.

Early yesterday evening heavy rainfall over the entire island generated mudflows on the volcano and triggered the seismic network for about an hour and a half. One of the major mudflows came down into the Belham Valley. The peak of the mudflow was witnessed on the Belham Bridge at 7 55 p.m. The speed of the flow was 2.4 m/s and the discharge was about 100 m3/s. The temperature of the mudflow was at least 40oC. Light ash fall was also experienced which was attributed to water contacting hot pyroclastic flows on the flanks of the volcano. The MVO will present a fuller assessment in the evening report following investigations today.

Everyone should listen to Radio Montserrat in case the current quiet situation at the volcano changes suddenly.


Montserrat Volcano Observatory