Mainshock
- Origin time: December 21, 2010 at 17:19:40 UTC (USGS) (December 22, 2010 at 02:19:40 JST)
- Location: 26.892°N 143.726°E (USGS), 27.5°N 143.4°E (JMA)
- Depth: 14 km (USGS), 10 km (JMA)
- Magnitude: 7.4 (USGS), 7.4 (JMA)
Information in our site
- Determination of earthquake magnitudes using duration of high-frequency energy radiation and maximum displacement amplitudes: application to the December 21, 2010 Near Chichi-jima Is., Japan earthquake by Dr. Hara
- Tsunami Simulation by Dr. Fujii
- Aftershock Distribution and the Mainshock’s Fault Plane by the MJHD Method by Dr. Hurukawa (Japanese version)
Direct links
Earthquake catalogs in our site
- IISEE’s CMTs, Aftershock Distributions, Fault planes, and Rupture processes for recent large earthquakes in the world
- Catalog of Damaging Earthquakes in the World (from ancient times through June, 2009)
Institutions
Copyright © 2010, International Institute of Seismology and Earthquake Engineering (IISEE)