Browse Items (32 total)

Update on activity, including tremors and change of lake colour; evacuation date change to 08/12/1971; expected delivery of relief provisions.

First page: summary of increased activity and observations of recent days.
Second page: summary of possible outcomes from current state of activity.

Volcanic sitrep from Tomblin and US geologists

First page: Summary of findings from US infrared flights and ground survey; introduction.
Second page: Summary of findngs from US infrared flights and ground survey: findings and conclusions.
Third page: conclusions.

First page: Report of volcanic activity presented by US Geologists Swanson and Friedland in Barbados.
Second page: Description of plan for ongoing scientific investigations.

Report on situation re volcanic activity at 1300 on 30th November; monitoring instrumentation gives experts confidence they will be able to anticipate changes in behaviour.

Statement summarising the situation as of 30th November 1971

A telegram informing the Canadian government of the events in SVG.

First page: summarises elevated activity and need for 24 hour distance naval assistance; refers to local planning for emergency and likely shortages of supplies.
Second page: reports no need for UK based elements at present; discusses benefit of…

First page: report of 'substantial body of rock above lake surface'; volcanologists had suggested naval assistance may be needed within 12 hours; report of torrential rain which would seriously hamper evacuations due to floods/landslides; at-risk…