Volcano monitoring photos: seismometer and seismographs

Volcano monitoring: seismographs

Earthquakes and tremors near volcanoes are some of the most important - and in many cases the only available - geophysical parameters to monitor volcanoes. Increasing earthquakes beneath a volcano are often the first indicators of a new eruption.

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Seismograph at Semeru volcano observatory (Photo: Tom Pfeiffer) [info]
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Seismograph at the Semeru volcano observatory (Photo: Tom Pfeiffer) [info]
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seismograph_40328.jpg (Photo: Tom Pfeiffer) [info]
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Seismograph plotting signals from Semeru volcano (Photo: Tom Pfeiffer) [info]
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seismograph_50733.jpg (Photo: Tom Pfeiffer) [info]
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seismograph_52826.jpg (Photo: Tom Pfeiffer) [info]
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Seismogram showing activity of Semeru volcano (Photo: Tom Pfeiffer) [info]
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