A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake
Using continuous waveforms recorded at a seismic station located in close proximity to the epicenter of the 2008 Iwate‐Miyagi inland earthquake, we conducted a detailed investigation of foreshock behavior. Calculation of cross‐correlation coefficients between the continuous waveform record and one o...
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| Veröffentlicht in: | Geophysical research letters 2012-06, Vol.39 (11), p.n/a |
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| creator | Doi, Issei Kawakata, Hironori |
| description | Using continuous waveforms recorded at a seismic station located in close proximity to the epicenter of the 2008 Iwate‐Miyagi inland earthquake, we conducted a detailed investigation of foreshock behavior. Calculation of cross‐correlation coefficients between the continuous waveform record and one of the officially recognized foreshock events revealed 20 micro foreshocks in addition to the two previously recognized foreshocks. Our analysis shows that all of the foreshocks occurred within the same general area relative to the main event. Over the two week period leading up to the Iwate‐Miyagi earthquake, foreshocks only occurred during the last 45 minutes, specifically over a 35 minute period followed by a 10 minute period of quiescence just before the mainshock. We found no evidence of acceleration of the foreshock sequence.
Key Points
Twenty‐two foreshocks with identical waveforms were found in the continuous record
Detected foreshocks and the mainshock occurred almost at the same place
Foreshock sequence has a short quiescence, and not accelerating |
| doi_str_mv | 10.1029/2012GL051779 |
| format | Article |
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Key Points
Twenty‐two foreshocks with identical waveforms were found in the continuous record
Detected foreshocks and the mainshock occurred almost at the same place
Foreshock sequence has a short quiescence, and not accelerating</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2012GL051779</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Correlation coefficient ; Earth sciences ; Earth, ocean, space ; Earthquakes ; Exact sciences and technology ; foreshock ; Geophysics ; inland earthquake ; Mathematical analysis ; non-acceleration ; Plate tectonics ; Proximity ; Recognition ; Seismic activity ; Seismic engineering ; Seismic phenomena ; Seismology ; Stations ; Waveforms</subject><ispartof>Geophysical research letters, 2012-06, Vol.39 (11), p.n/a</ispartof><rights>2012. American Geophysical Union. All Rights Reserved.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright American Geophysical Union 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5547-262b063f6d011c21313c2c57c14692a2630ac47db82114d7b3a28a7b057ab773</citedby><cites>FETCH-LOGICAL-c5547-262b063f6d011c21313c2c57c14692a2630ac47db82114d7b3a28a7b057ab773</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2012GL051779$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2012GL051779$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,1428,11495,27905,27906,45555,45556,46390,46449,46814,46873</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26362692$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Doi, Issei</creatorcontrib><creatorcontrib>Kawakata, Hironori</creatorcontrib><title>A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Using continuous waveforms recorded at a seismic station located in close proximity to the epicenter of the 2008 Iwate‐Miyagi inland earthquake, we conducted a detailed investigation of foreshock behavior. Calculation of cross‐correlation coefficients between the continuous waveform record and one of the officially recognized foreshock events revealed 20 micro foreshocks in addition to the two previously recognized foreshocks. Our analysis shows that all of the foreshocks occurred within the same general area relative to the main event. Over the two week period leading up to the Iwate‐Miyagi earthquake, foreshocks only occurred during the last 45 minutes, specifically over a 35 minute period followed by a 10 minute period of quiescence just before the mainshock. We found no evidence of acceleration of the foreshock sequence.
Key Points
Twenty‐two foreshocks with identical waveforms were found in the continuous record
Detected foreshocks and the mainshock occurred almost at the same place
Foreshock sequence has a short quiescence, and not accelerating</description><subject>Correlation coefficient</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Earthquakes</subject><subject>Exact sciences and technology</subject><subject>foreshock</subject><subject>Geophysics</subject><subject>inland earthquake</subject><subject>Mathematical analysis</subject><subject>non-acceleration</subject><subject>Plate tectonics</subject><subject>Proximity</subject><subject>Recognition</subject><subject>Seismic activity</subject><subject>Seismic engineering</subject><subject>Seismic phenomena</subject><subject>Seismology</subject><subject>Stations</subject><subject>Waveforms</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp90FFrFDEQB_AgCp7VNz9AQAQfXJ1Mspnbx9LqVTwUSqGPIZvNtttLN3fJLvW-fVPuKOKDTwmZ3wz_CWPvBXwRgM1XBIGrNdSCqHnBFqJRqloC0Eu2AGjKHUm_Zm9yvgMACVIsWDjlYxwr65wPPtlpGG94H5PPt9FtePa72Y_Ol6cQ4oPveLvnlpdimvjWpyF2PPZ8Nw8-uyNMBQSbbjwfxmDHjnubptvdbDf-LXvV25D9u-N5wq6-f7s6u6jWv1c_zk7XlatrRRVqbEHLXncghEMhhXToanJC6QYtagnWKeraJQqhOmqlxaWlFmqyLZE8YZ8OY7cplvx5MvdDiRdKGh_nbETZXCoCUIV--IfexTmNJVxRCERKy6aozwflUsw5-d5s03Bv076gJ9eYv3--8I_HoTY7G_pkRzfk556SX2NZpDg8uIch-P1_Z5rV5RobFE_LVYemIU_-z3OTTRujSVJtrn-tDKC6xPOf14bkI0IMnr4</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Doi, Issei</creator><creator>Kawakata, Hironori</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>L7M</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>7SM</scope></search><sort><creationdate>201206</creationdate><title>A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake</title><author>Doi, Issei ; Kawakata, Hironori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5547-262b063f6d011c21313c2c57c14692a2630ac47db82114d7b3a28a7b057ab773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Correlation coefficient</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Earthquakes</topic><topic>Exact sciences and technology</topic><topic>foreshock</topic><topic>Geophysics</topic><topic>inland earthquake</topic><topic>Mathematical analysis</topic><topic>non-acceleration</topic><topic>Plate tectonics</topic><topic>Proximity</topic><topic>Recognition</topic><topic>Seismic activity</topic><topic>Seismic engineering</topic><topic>Seismic phenomena</topic><topic>Seismology</topic><topic>Stations</topic><topic>Waveforms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Doi, Issei</creatorcontrib><creatorcontrib>Kawakata, Hironori</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Earthquake Engineering Abstracts</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Doi, Issei</au><au>Kawakata, Hironori</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2012-06</date><risdate>2012</risdate><volume>39</volume><issue>11</issue><epage>n/a</epage><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Using continuous waveforms recorded at a seismic station located in close proximity to the epicenter of the 2008 Iwate‐Miyagi inland earthquake, we conducted a detailed investigation of foreshock behavior. Calculation of cross‐correlation coefficients between the continuous waveform record and one of the officially recognized foreshock events revealed 20 micro foreshocks in addition to the two previously recognized foreshocks. Our analysis shows that all of the foreshocks occurred within the same general area relative to the main event. Over the two week period leading up to the Iwate‐Miyagi earthquake, foreshocks only occurred during the last 45 minutes, specifically over a 35 minute period followed by a 10 minute period of quiescence just before the mainshock. We found no evidence of acceleration of the foreshock sequence.
Key Points
Twenty‐two foreshocks with identical waveforms were found in the continuous record
Detected foreshocks and the mainshock occurred almost at the same place
Foreshock sequence has a short quiescence, and not accelerating</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2012GL051779</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Geophysical research letters, 2012-06, Vol.39 (11), p.n/a |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Online Library Free Content; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Correlation coefficient Earth sciences Earth, ocean, space Earthquakes Exact sciences and technology foreshock Geophysics inland earthquake Mathematical analysis non-acceleration Plate tectonics Proximity Recognition Seismic activity Seismic engineering Seismic phenomena Seismology Stations Waveforms |
| title | A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake |
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