Frequency dependence of mud volcano response to earthquakes
Frequency dependence of mud volcano response to earthquakes
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DOI：
10.1029/2012gl052383
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发表时间：
2012-07
影响因子：
5.2
通讯作者：
M. Rudolph;M. Manga
中科院分区：
文献类型：
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作者：
M. Rudolph;M. Manga
遥远的地震会引发泥火山的喷发。我们记录了加利福尼亚州Davis - Schrimpf泥火山对两次地震的反应和对另外四个事件的无反应。研究表明，Davis - Schrimpf泥火山对长周期地震波比相同振幅的短周期地震波更敏感。我们的观测结果与地震波产生的随时间变化的流动使气泡和颗粒移位的模型是一致的。调动被困的气泡或颗粒增加渗透性或流体流动性，增加流量。
Distant earthquakes can trigger the eruption of mud volcanoes. We document the response of the Davis‐Schrimpf mud volcanoes, California, to two earthquakes and non‐response to four additional events. We show that the Davis‐Schrimpf mud volcanoes are more sensitive to long period seismic waves than to shorter period waves of the same amplitude. Our observations are consistent with models for dislodging bubbles and particles by time varying flows produced by seismic waves. Mobilizing trapped bubbles or particles increases permeability or fluid mobility, increasing discharge.