Pacific Geophysical Observation[OHP] Network

OHP network operation and data analysis report

Miyagi-oki, Northeast of Honshu, Japan, earthquake

2005-08-16 16:14:41 | Weblog
M6 or 7 order of earthquake hit North east of Honshu, Japan.
Recorded maximum seismic intensity is 6(-) by JMA scale.
Broadcast says that some tens person are injuried.

This figure shows seismograms recorded at westermost Shukoku Is., Japan.
This station is located about 800km in the west of seismic source.

Initial phase shows about 25 sec pulse width, which corresponds to seismic source duration time.

The seismic fault length is about 60km based on standard fault modeling.