Miller V, Savage M
Institute of Geophysics, Victoria University of Wellington, Wellington, New Zealand.
Science. 2001 Sep 21;293(5538):2231-3. doi: 10.1126/science.1063463.
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.
安山岩火山喷发具有爆发性的灾难性，而且极难预测。然而，在新西兰鲁阿佩胡火山喷发后观测到的剪切波波形变化表明，此类火山产生的力量强大且动态，足以局部覆盖区域应力状态，这为未来火山喷发监测提出了一种新方法。这些结果显示了剪切波偏振随时间的变化，并被解释为是由火山造成的局部应力状态所致，喷发后压力得到释放。
