{"title":"Seismic Pulses before the February 27, 2010 M = 8.8 Chile Earthquake","authors":"G. A. Sobolev, I. N. Migunov","doi":"10.1134/s1069351324700447","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—We study the records of ground motion vertical velocity in the vicinity of broadband seismic stations on the west coast of South America and in the adjacent region of the Pacific Ocean, where the <i>M</i><sub>w</sub> 8.8 earthquake occurred on February 27, 2010. Starting from 2009, asymmetric seismic pulses lasting several hundred seconds have been detected in records of some stations. These pulses occurred under quiet weather conditions and low geomagnetic activity. It is believed that the earthquake was preceded by tectonic movements in the oceanic and continental lithosphere.</p>","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Izvestiya, Physics of the Solid Earth","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s1069351324700447","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract—We study the records of ground motion vertical velocity in the vicinity of broadband seismic stations on the west coast of South America and in the adjacent region of the Pacific Ocean, where the Mw 8.8 earthquake occurred on February 27, 2010. Starting from 2009, asymmetric seismic pulses lasting several hundred seconds have been detected in records of some stations. These pulses occurred under quiet weather conditions and low geomagnetic activity. It is believed that the earthquake was preceded by tectonic movements in the oceanic and continental lithosphere.
期刊介绍：
Izvestiya, Physics of the Solid Earth is an international peer reviewed journal that publishes results of original theoretical and experimental research in relevant areas of the physics of the Earth''s interior and applied geophysics. The journal welcomes manuscripts from all countries in the English or Russian language.
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