{"title":"俄罗斯远东地区震级为Mwa","authors":"D. A. Safonov, E. P. Semenova","doi":"10.3103/S074792392207009X","DOIUrl":null,"url":null,"abstract":"<p>The Yuzhno-Sakhalinsk Seismological Regional Information Processing Center (RIPC) recently used the Richter magnitude <i>M</i><sub><i>wa</i></sub> to estimate the energy level of Far Eastern earthquakes. To date, this is the most common energy characteristic in the operational catalog of the RIPC. The basis is digital waveforms of regional seismic stations emulated to the characteristics of the Wood–Anderson seismograph. In the present paper, the results of determining the magnitude <i>M</i><sub><i>wa</i></sub> in Russian Far Eastern conditions are analyzed. The magnitude determination accuracy is estimated, and station corrections are obtained. The regression relation <i>M</i><sub><i>wa</i></sub> and Japanese Meteorological Agency magnitude <i>M</i><sub><i>j</i></sub> showed a high similarity between these scales. This made it possible to use <i>M</i><sub><i>j</i></sub> as the reference when studying the features of <i>M</i><sub><i>wa</i></sub>. The regional seismic network makes it possible to correctly estimate the magnitude <i>M</i><sub><i>wa</i></sub> at a regional distance (up to about 1000 km), including for deep-focus earthquakes (up to 600 km). Transfer relations between <i>M</i><sub><i>wa</i></sub> and other mass-determined regional energy characteristics of earthquakes are obtained. The <i>M</i><sub><i>wa</i></sub> scale can be used to estimate the energy level of any earthquakes in the Kuril–Okhotsk and Sakhalin regions in the magnitude range of weak and moderately strong events and is recommended for inclusion in regional earthquake catalogs for the Russian Far East.</p>","PeriodicalId":45174,"journal":{"name":"Seismic Instruments","volume":"58 1","pages":"S42 - S57"},"PeriodicalIF":0.3000,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Regional Magnitude Mwa in the Russian Far East\",\"authors\":\"D. A. Safonov, E. P. Semenova\",\"doi\":\"10.3103/S074792392207009X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The Yuzhno-Sakhalinsk Seismological Regional Information Processing Center (RIPC) recently used the Richter magnitude <i>M</i><sub><i>wa</i></sub> to estimate the energy level of Far Eastern earthquakes. To date, this is the most common energy characteristic in the operational catalog of the RIPC. The basis is digital waveforms of regional seismic stations emulated to the characteristics of the Wood–Anderson seismograph. In the present paper, the results of determining the magnitude <i>M</i><sub><i>wa</i></sub> in Russian Far Eastern conditions are analyzed. The magnitude determination accuracy is estimated, and station corrections are obtained. The regression relation <i>M</i><sub><i>wa</i></sub> and Japanese Meteorological Agency magnitude <i>M</i><sub><i>j</i></sub> showed a high similarity between these scales. This made it possible to use <i>M</i><sub><i>j</i></sub> as the reference when studying the features of <i>M</i><sub><i>wa</i></sub>. The regional seismic network makes it possible to correctly estimate the magnitude <i>M</i><sub><i>wa</i></sub> at a regional distance (up to about 1000 km), including for deep-focus earthquakes (up to 600 km). Transfer relations between <i>M</i><sub><i>wa</i></sub> and other mass-determined regional energy characteristics of earthquakes are obtained. The <i>M</i><sub><i>wa</i></sub> scale can be used to estimate the energy level of any earthquakes in the Kuril–Okhotsk and Sakhalin regions in the magnitude range of weak and moderately strong events and is recommended for inclusion in regional earthquake catalogs for the Russian Far East.</p>\",\"PeriodicalId\":45174,\"journal\":{\"name\":\"Seismic Instruments\",\"volume\":\"58 1\",\"pages\":\"S42 - S57\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2023-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Seismic Instruments\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S074792392207009X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Seismic Instruments","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S074792392207009X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
The Yuzhno-Sakhalinsk Seismological Regional Information Processing Center (RIPC) recently used the Richter magnitude Mwa to estimate the energy level of Far Eastern earthquakes. To date, this is the most common energy characteristic in the operational catalog of the RIPC. The basis is digital waveforms of regional seismic stations emulated to the characteristics of the Wood–Anderson seismograph. In the present paper, the results of determining the magnitude Mwa in Russian Far Eastern conditions are analyzed. The magnitude determination accuracy is estimated, and station corrections are obtained. The regression relation Mwa and Japanese Meteorological Agency magnitude Mj showed a high similarity between these scales. This made it possible to use Mj as the reference when studying the features of Mwa. The regional seismic network makes it possible to correctly estimate the magnitude Mwa at a regional distance (up to about 1000 km), including for deep-focus earthquakes (up to 600 km). Transfer relations between Mwa and other mass-determined regional energy characteristics of earthquakes are obtained. The Mwa scale can be used to estimate the energy level of any earthquakes in the Kuril–Okhotsk and Sakhalin regions in the magnitude range of weak and moderately strong events and is recommended for inclusion in regional earthquake catalogs for the Russian Far East.
期刊介绍：
Seismic Instruments is a journal devoted to the description of geophysical instruments used in seismic research. In addition to covering the actual instruments for registering seismic waves, substantial room is devoted to solving instrumental-methodological problems of geophysical monitoring, applying various methods that are used to search for earthquake precursors, to studying earthquake nucleation processes and to monitoring natural and technogenous processes. The description of the construction, working elements, and technical characteristics of the instruments, as well as some results of implementation of the instruments and interpretation of the results are given. Attention is paid to seismic monitoring data and earthquake catalog quality Analysis.
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