Japan Trench
Many other earthquakes have been recorded from interplate and transient postseismic slip data along the Japan Trench. Dates include August 2005, May 2008, July 2008, and March 2010 ranging in magnitudes 7.2, 7.0, 6.9, and 6.7 respectively. A characteristic earthquake (~M7) periodically occurred at a recurring interval rate of about 37 years. ~M7 earthquakes can be seen in the table to the right, occurring in the years 1938, 1989, 1992, 2005, 2008, 2008 and 2011.