Quiet volcanoes

Seismic quietness occurs before volcanoes erupt and can be used to forecast an impending eruption for restless volcanoes. The findings showed the duration of the silence could indicate the level of energy that will be released when eruption occurs.  Further, the longer the quiet phase preceding an explosion, the more energy was released in the explosion. “Our work has now quantified that quiet periods can be used for eruption forecasts and that longer quiet periods at recently active volcanoes could indicate a higher risk of energetic eruptions,” said Diana Roman, Volcanologist at Carnegie Institution for Science.

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