M 6.3 - 85 km W of Noshiro, Japan
- 1983-06-09 13:04:00 (UTC)
- 40.268°N 139.023°E
- 28.0 km depth
Focal Mechanism
- The data below are the most preferred data available
- The data below have been reviewed by a scientist
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Earthquake Hazards Program
- In cooperation with:
- US