Japan Quakes
Sep 5, 2004

7.0 EQ´s in Rapid Succession Practically Unheard Of

Kenshiro Tsumura, head of the Earthquake Research Committee, sounded a note of caution, saying the exact implications of the two earthquakes were hard to predict because they were rare types. While earthquakes measuring around 8.0 on the Richter scale had occurred along the same offshore trough every 100 to 150 years, tremors of about 7.0 occurring in rapid succession there were practically unheard of, Tsumura said.

 

BBC, Asia-Pacific

Two earthquakes off the west coast were felt in Tokyo and sent tremors through other major cities. Coastal areas close to the quakes, which happened five hours apart, were ordered evacuated amid reports of tidal waves approaching from the Pacific.

2004/09/05 14:58:40.0 Mag 7.7 China
2004/09/05 14:57:53.0 Mag 6.5 Sea of Japan
2004/09/05 14:57:52.5 Mag 6.6 Korea
2004/09/05 14:57:46.0 Mag 7.7 Honshu, Japan
2004/09/05 14:57:25.0 Mag 7.0 Honshu, Japan
2004/09/05 14:57:25.0 Mag 7.1 Shikoku, Japan
2004/09/05 14:57:22.8 Mag 7.3 Honshu, Japan
2004/09/05 14:57:22.0 Mag 6.2 Honshu, Japan
2004/09/05 14:57:18.8 Mag 7.1 Honshu, Japan
2004/09/05 14:57:18.5 Mag 7.1 Honshu, Japan
2004/09/05 14:57:18.0 Mag 7.6 Honshu, Japan
2004/09/05 14:57:18.0 Mag 6.9 Honshu, Japan
2004/09/05 14:57:16.0 Mag 6.4 Shikoku, Japan
2004/09/05 14:57:12.5 Mag 6.1 Honshu, Japan
2004/09/05 14:57:07.0 Mag 6.2 Honshu, Japan

2004/09/05 10:17:38.0 Mag 6.6 Honshu, Japan
2004/09/05 10:07:26.6 Mag 6.5 Sea of Japan
2004/09/05 10:07:20.0 Mag 7.4 Shikoku, Japan
2004/09/05 10:07:15.8 Mag 6.1 Honshu, Japan
2004/09/05 10:07:09.2 Mag 7.2 Honshu, Japan
2004/09/05 10:07:09.0 Mag 7.5 Honshu, Japan
2004/09/05 10:07:09.0 Mag 7.0 Honshu, Japan
2004/09/05 10:07:09.0 Mag 6.8 Shikoku, Japan
2004/09/05 10:07:09.0 Mag 7.5 Shikoku, Japan
2004/09/05 10:07:07.9 Mag 7.1 Honshu, Japan
2004/09/05 10:07:07.0 Mag 7.3 Shikoku, Japan
2004/09/05 10:07:07.0 Mag 6.6 Honshu, Japan
2004/09/05 10:07:05.8 Mag 7.2 Honshu, Japan
2004/09/05 10:07:05.2 Mag 6.7 Honshu, Japan
2004/09/05 10:07:04.2 Mag 6.8 Honshu, Japan
2004/09/05 10:07:04.0 Mag 7.4 Honshu, Japan
2004/09/05 10:06:56.0 Mag 7.0 Honshu, Japan
2004/09/05 10:06:56.0 Mag 6.9 Honshu, Japan