What are the likely effects to a city if a dormant volcano erupts in
a harbour of a major city? How would civil defense need to prepare its
citizens in the likelihood of an eruption?
Jackie
Dear Jackie,
This sounds a lot like question 9
in Volcanoes of other Regions (Australia) in Ask a Volcanologist.
Possible effects include earthquakes, tsunami, pyroclastic flows, and/or
tephra fall.
Civil defense could help to prepare citizens by assessing volcanic
hazards and publishing their findings, educating the public, and planning
for potential eruption scenarios.
You might have a look at the description of the Rabaul eruption in
Vurrent Eruptions and
Activity in VolcanoWorld.
I recommend you contact the New Zealand
Ministry of Civil Defense
Steve Mattox, University of North Dakota
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