{"title":"基于2007年2 - 3月Moshiri观测资料的ULF-ELF场联合特征对地震前兆效率的估计","authors":"M. Hayakawa, A. Schekotov, Y. Hobara","doi":"10.1541/JAE.32.35","DOIUrl":null,"url":null,"abstract":":Earlier measurements at Karymshino observatory (Kamchatka peninsula, Russia) indicated that there appeared electromagnetic radiation in the frequency range of ULF-ELF a few days before earthquakes (EQs). It was shown that its combined characteristics of the ratio of the field components and the dispersion of field ellipticity were most sensitive to this radiation. We have also shown its high efficiency as an EQ precursor. Here we have tried to estimate its reliability by using the data from an induction magnetometer at another observatory Moshiri in Japan. The data of five weeks in February-March 2007 were analyzed and as a result, reliable precursors were found for four most significant EQ events in the vicinity of the observatory.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"91 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Estimation of the Efficiency of Combined Characteristics of ULF-ELF Fields as a Precursor to Earthquakes Based on the Observations in February-March 2007 in Moshiri\",\"authors\":\"M. Hayakawa, A. Schekotov, Y. Hobara\",\"doi\":\"10.1541/JAE.32.35\",\"DOIUrl\":null,\"url\":null,\"abstract\":\":Earlier measurements at Karymshino observatory (Kamchatka peninsula, Russia) indicated that there appeared electromagnetic radiation in the frequency range of ULF-ELF a few days before earthquakes (EQs). It was shown that its combined characteristics of the ratio of the field components and the dispersion of field ellipticity were most sensitive to this radiation. We have also shown its high efficiency as an EQ precursor. Here we have tried to estimate its reliability by using the data from an induction magnetometer at another observatory Moshiri in Japan. The data of five weeks in February-March 2007 were analyzed and as a result, reliable precursors were found for four most significant EQ events in the vicinity of the observatory.\",\"PeriodicalId\":274637,\"journal\":{\"name\":\"Journal of atmospheric electricity\",\"volume\":\"91 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of atmospheric electricity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1541/JAE.32.35\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of atmospheric electricity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1541/JAE.32.35","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Estimation of the Efficiency of Combined Characteristics of ULF-ELF Fields as a Precursor to Earthquakes Based on the Observations in February-March 2007 in Moshiri
:Earlier measurements at Karymshino observatory (Kamchatka peninsula, Russia) indicated that there appeared electromagnetic radiation in the frequency range of ULF-ELF a few days before earthquakes (EQs). It was shown that its combined characteristics of the ratio of the field components and the dispersion of field ellipticity were most sensitive to this radiation. We have also shown its high efficiency as an EQ precursor. Here we have tried to estimate its reliability by using the data from an induction magnetometer at another observatory Moshiri in Japan. The data of five weeks in February-March 2007 were analyzed and as a result, reliable precursors were found for four most significant EQ events in the vicinity of the observatory.
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