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The 2011 off the Pacific coast of Tohoku Earthquake: Coseismic Slip Distribution Model

Crustal Deformation obtained from onshore and offshore data and Fault Model

Released: Jun. 13, 2016 Japanese version of this page

Crustal Deformation obtained from onshore and offshore data

We constructed a distributed slip model using coseismic surface displacement data observed by onshore data (GEONET operated by GSI) and offshore data (Seafloor Geodetic Observation operated by JCG) for the 2011 off the Pacific coast of Tohoku Earthquake.

Crustal deformation (Horizontal and Vertical)
Horizontal[PDF: 161KB] Vertical[PDF:155KB]

Slip Distribution Model and Calculated Displacement

Coseismic slip distribution
Coseismic slip distribution[PDF: 143KB] [Numerical data of slip model: 27KB]

Fitting between observation and calculation
Horizontal[PDF: 121KB] Vertical[PDF: 126KB]

The 2011 off the Pacific coast of Tohoku Earthquake

Date-Time March 11, 2011 14:46 JST
March 11, 2011 05:46 UTC
Hypocenter Location 38.103°N, 142.860°E, Depth: 24 km (JMA, as of March 13, 2011)
38.322°N, 142.369°E, Depth: 22.4 km (USGS, as of March 13, 2011)
Moment Magnitude 9.0 (JMA, as of March 13, 2011)
9.0 (USGS, as of March 13, 2011)

Reference

Suito, H., T. Nishimura, T. Kobayashi, S. Ozawa, M. Tobita, and T. Imakiire (2012), Co- and post- seismic deformation and fault model of the 2011 off the Pacific coast of Tohoku Earthquake, Zisin 2, 65, 95-121, doi:10.4294/zisin.65.95 (in Japanese with English abstract).

Copyrights and Credits

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Contact

IMAKIIRE Tetsuro : Research Coordinator for Geography and Crustal Dynamics Research
TOBITA Mikio : Head of Division (Crustal Deformation Research Division)
OZAWA Shinzaburo : Chief Researcher (Crustal Deformation Research Division)
NISHIMURA Takuya : Chief Researcher (Crustal Deformation Research Division)
SUITO Hisashi : Researcher (Crustal Deformation Research Division)
KOBAYASHI Tomokazu : Researcher (Crustal Deformation Research Division)

GEONET data and Fault model:
Mail to gsi-crust-deform@ml.mlit.go.jp
Seafloor Geodetic Observation:
Mail to eisei@jodc.go.jp

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