Changes in Seismic Anisotropy After Volcanic Eruptions: Evidence from Mount Ruapehu

Details Changes in Seismic Anisotropy After Volcanic Eruptions: Evidence from Mount Ruapehu Changes in Seismic Anisotropy After Volcanic Eruptions: Evidence from Mount Ruapehu

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001sci...293.2231m&link_type=abstract

Science, Volume 293, Issue 5538, pp. 2231-2234 (2001).

Astronomy and Astrophysics

Astrophysics

23

Scientific paper

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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