Ground-coupled airwaves at Pavlof Volcano, Alaska, and their potential for eruption monitoring

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• 作者：Cassandra M. Smith ; Stephen R. McNutt ; Glenn Thompson
• 刊名：Bulletin of Volcanology
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：78
• 期：7
• 全文大小：2,674 KB
• 刊物主题：Geology; Geophysics/Geodesy; Mineralogy; Sedimentology;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0819
• 卷排序：78

文摘

An abnormally high number of explosion quakes were noted during the monitoring effort for the 2007 eruption of Pavlof Volcano on the Alaska Peninsula. In this study, we manually cataloged the explosion quakes from their characteristic ground-coupled airwaves. This study investigates how the ground-coupled airwaves might be used in a monitoring or analysis effort by estimating energy release and gas mass release. Over 3 × 104 quakes were recorded. The energy release from the explosions is approximated to be 3 × 1011 J, and the total gas mass (assuming 100 % water) released was 450 t. The tracking of explosion quakes has the potential to estimate relative eruption intensity as a function of time and is thus a useful component of a seismic monitoring program.KeywordsSeismo-acousticAleutianGas releaseInfrasound