Are volcanic seismic b-values high, and if so when?
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- 作者：Nick S. Roberts ; N.S.Roberts@sms.ed.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Andrew F. Bell a.bell@ed.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Ian G. Main ian.main@ed.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：b-value ; Volcano ; Seismology ; Completeness magnitude
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2015
- 出版时间：15 December 2015
- 年：2015
- 卷：308
- 期：Complete
- 页码：127-141
- 全文大小：2937 K
文摘
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We re-examine current methodology for estimating seismic b-values.
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We propose a new work-flow for calculating completeness magnitudes.
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A pragmatic minimum complete catalogue size of 200 events is proposed.
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The error in b-value from the selection of the completeness magnitude is quantified.
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Temporal b-value variations at El Hierro and Mt. Etna are analysed.
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