October 23, 2004 near the west coast of Honshu, Japan. This recording is an aftershock of the 6.6 magnitude earthquake that struck at 08:56:00 (UTC.) Initial reports indicate at least 25 people killed and 2,000 people injured. Hundreds of buildings were destroyed and thousands more damaged.

There have been nearly a dozen aftershocks ranging from magnitude 4.9 to this one of 6.3.