A large silent earthquake in the Guerrero seismic gap, Mexico
Geodetic measurements from a network of permanent GPS stations along the Pacific coast of Mexico reveal a large “silent earthquake” along the segment of the Cocos‐North American plate interface identified as the Guerrero seismic gap. The event began in October of 2001 and lasted for 6–7 months. Aver...
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| Veröffentlicht in: | Geophysical research letters 2003-08, Vol.30 (15), p.SDE9.1-n/a |
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| container_title | Geophysical research letters |
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| creator | Kostoglodov, Vladimir Singh, Shri Krishna Santiago, Jose Antonio Franco, Sara Ivonne Larson, Kristine M. Lowry, Anthony R. Bilham, Roger |
| description | Geodetic measurements from a network of permanent GPS stations along the Pacific coast of Mexico reveal a large “silent earthquake” along the segment of the Cocos‐North American plate interface identified as the Guerrero seismic gap. The event began in October of 2001 and lasted for 6–7 months. Average slip of ∼10 cm produced measurable displacements over an area of ∼550 × 250 km2. The equivalent moment magnitude of the event was Mw ∼ 7.5. Recognition of this and previous slow event here indicate that the seismogenic portion of the plate interface is not loading steadily, as hitherto believed, but is rather partitioning the stress buildup with episodic, as opposed to steady‐state or periodic, slip downdip of the seismogenic zone. This process increases the stress at the base of the seismogenic zone, bringing it closer to failure. These results call for a reassessment of the seismic potential of Guerrero and other seismic gaps in Mexico. |
| doi_str_mv | 10.1029/2003GL017219 |
| format | Article |
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The event began in October of 2001 and lasted for 6–7 months. Average slip of ∼10 cm produced measurable displacements over an area of ∼550 × 250 km2. The equivalent moment magnitude of the event was Mw ∼ 7.5. Recognition of this and previous slow event here indicate that the seismogenic portion of the plate interface is not loading steadily, as hitherto believed, but is rather partitioning the stress buildup with episodic, as opposed to steady‐state or periodic, slip downdip of the seismogenic zone. This process increases the stress at the base of the seismogenic zone, bringing it closer to failure. 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These results call for a reassessment of the seismic potential of Guerrero and other seismic gaps in Mexico.</description><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Marine</subject><subject>Seismic gap</subject><subject>Slow aseismic transient</subject><subject>Subduction</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAUhS0EEuWx8QO8wETg2vEjHhgQgoDUglTxGK0b1wFD2hQ7FfDvSVUETDDdM3zn09UhZI_BEQNujjlAXg6Bac7MGhkwI0RWAOh1MgAwfeZabZKtlJ6hJyFnA3JyShuMj56m0PhZRz3G7ul1gS-ehhntnjwtFz5GH1uafEjT4Ogjzg_pyL8H1-6QjRqb5He_7ja5uzi_PbvMhjfl1dnpMEOplcxQV0WtTKVZXgjGJBoAhZOqrqSrlNYa1aQStQCPfKK4FgwkOlk5zTAHmOTb5GDlncf2deFTZ6chOd80OPPtIlmuC65yI_8FWQFSGCV68HAFutimFH1t5zFMMX5YBnY5pv09Zo_vf3kxOWzqiDMX0k9HMm10rnuOr7i3fs6PP522HA-ZMnz5dLYqhdT59-8Sxhereqm0D9elvddyPBajsTX5JzcCj4E</recordid><startdate>200308</startdate><enddate>200308</enddate><creator>Kostoglodov, Vladimir</creator><creator>Singh, Shri Krishna</creator><creator>Santiago, Jose Antonio</creator><creator>Franco, Sara Ivonne</creator><creator>Larson, Kristine M.</creator><creator>Lowry, Anthony R.</creator><creator>Bilham, Roger</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7SM</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>200308</creationdate><title>A large silent earthquake in the Guerrero seismic gap, Mexico</title><author>Kostoglodov, Vladimir ; Singh, Shri Krishna ; Santiago, Jose Antonio ; Franco, Sara Ivonne ; Larson, Kristine M. ; Lowry, Anthony R. ; Bilham, Roger</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5765-a7b8f69b71384115a9006adbfb5cb6777a6db4f40ea2d6274105ac5bc71a300d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Marine</topic><topic>Seismic gap</topic><topic>Slow aseismic transient</topic><topic>Subduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kostoglodov, Vladimir</creatorcontrib><creatorcontrib>Singh, Shri Krishna</creatorcontrib><creatorcontrib>Santiago, Jose Antonio</creatorcontrib><creatorcontrib>Franco, Sara Ivonne</creatorcontrib><creatorcontrib>Larson, Kristine M.</creatorcontrib><creatorcontrib>Lowry, Anthony R.</creatorcontrib><creatorcontrib>Bilham, Roger</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Earthquake Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kostoglodov, Vladimir</au><au>Singh, Shri Krishna</au><au>Santiago, Jose Antonio</au><au>Franco, Sara Ivonne</au><au>Larson, Kristine M.</au><au>Lowry, Anthony R.</au><au>Bilham, Roger</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A large silent earthquake in the Guerrero seismic gap, Mexico</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2003-08</date><risdate>2003</risdate><volume>30</volume><issue>15</issue><spage>SDE9.1</spage><epage>n/a</epage><pages>SDE9.1-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Geodetic measurements from a network of permanent GPS stations along the Pacific coast of Mexico reveal a large “silent earthquake” along the segment of the Cocos‐North American plate interface identified as the Guerrero seismic gap. The event began in October of 2001 and lasted for 6–7 months. Average slip of ∼10 cm produced measurable displacements over an area of ∼550 × 250 km2. The equivalent moment magnitude of the event was Mw ∼ 7.5. Recognition of this and previous slow event here indicate that the seismogenic portion of the plate interface is not loading steadily, as hitherto believed, but is rather partitioning the stress buildup with episodic, as opposed to steady‐state or periodic, slip downdip of the seismogenic zone. This process increases the stress at the base of the seismogenic zone, bringing it closer to failure. These results call for a reassessment of the seismic potential of Guerrero and other seismic gaps in Mexico.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2003GL017219</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Free Content; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Earth, ocean, space Exact sciences and technology Marine Seismic gap Slow aseismic transient Subduction |
| title | A large silent earthquake in the Guerrero seismic gap, Mexico |
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