Changes in Seismic Anisotropy After Volcanic Eruptions: Evidence from Mount Ruapehu
Abstract
The eruptions of andesite volcanoes are explosively catastrophic and notoriously difficult to predict. Yet changes in shear waveforms observed after an eruption of Mount Ruapehu, New Zealand, suggest that forces generated by such volcanoes are powerful and dynamic enough to locally overprint the regional stress regime, which suggests a new method of monitoring volcanoes for future eruptions. These results show a change in shear-wave polarization with time and are interpreted as being due to a localized stress regime caused by the volcano, with a release in pressure after the eruption.
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Supplementary Material
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Published In
Science
Volume 293 | Issue 5538
21 September 2001
21 September 2001
Submission history
Received: 14 June 2001
Accepted: 21 July 2001
Published in print: 21 September 2001
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Cited by
- Coda Wave Interferometry for Estimating Nonlinear Behavior in Seismic Velocity, Science, 295, 5563, (2253-2255), (2021)./doi/10.1126/science.1070015
- Seismic Anisotropy Beneath Ruapehu Volcano: A Possible Eruption Forecasting Tool, Science, 306, 5701, (1543-1547), (2004)./doi/10.1126/science.1103445
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