Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data

• Miura Satoshi

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Iinuma Takeshi

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Yui Satsoshi

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Uchida Naoki

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Sato Toshiya

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Tachibana Kenji

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

• Hasegawa Akira

  Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University

Abstract

A large earthquake with M7.2 occurred on August 16, 2005 along the plate boundary off Miyagi Prefecture. Co- and post-seismic deformations associated with this event were investigated to reveal the causal interplate slips using continuous GPS data and geodetic inversion. The coseismic slip distribution shows good agreement with that estimated by seismic waveform inversions. The major slip area is limited to the southeastern part of the rupture area of the previous 1978 event. The post-seismic slip extended to the southwest of the co-seismic slip area. These distinctive features of both the co- and post-seismic slips might be caused by the existence of the locked plate interface, where seismogenic stress has not released yet, in the northern part of the 1978 rupture area.

Journal

• Earth, Planets and Space

  Earth, Planets and Space 58 (12), 1567-1572, 2006

  Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences

Keywords

• GPS
• asperity
• subduction zone
• interplate earthquake
• coseismic slip
• after slip

Details

• CRID: 1390001206512043520
• NII Article ID: 10024495630
• NII Article ID: 130003956569
• NII Book ID: AA11211921
• DOI: 10.1186/bf03352662
• ISSN: 18805981
• ISSN: 13438832
• NDL BIB ID: 8648721
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8648721
• Web Site: https://link.springer.com/content/pdf/10.1186/BF03352662.pdf
• Web Site: https://link.springer.com/article/10.1186/BF03352662/fulltext.html
• Web Site: http://link.springer.com/content/pdf/10.1186/BF03352662
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed