A magnitude 8.2 (MW) earthquake occurred on 1968-05-16, 10:49 local time (00:49 UTC) (just now), centered Off the coast of Hachinohe (159 km E, Japan). The hypocenter was located at a shallow depth of 26.9 km. Primary telemetry verified by USGS alongside 2 regional seismic monitoring networks.
Curated Global Seismic Archive (1700–Present)
30.09 Mt TNT
shallow (Shallow crustal)
Injuries: > 5,000 · ~31.7M felt
Timeline of foreshocks, main rupture, aftershocks and machine learning risk probability evolution.
Shaking intensity is modelled from magnitude, depth and distance (GMPE attenuation), not reported by residents.
| Town | Distance | Intensity |
|---|---|---|
| Hachinohe · Aomori | 159 km | MMI VIII |
| Aomori · Aomori | 223 km | MMI VII |
| Obihiro · Hokkaido | 227 km | MMI VII |
| Morioka · Iwate | 230 km | MMI VII |
| Hakodate · Hokkaido | 241 km | MMI VII |
| Hirosaki · Aomori | 246 km | MMI VII |
Independent solutions for the same rupture. Differences of 0.1–0.3 in magnitude are normal and reflect method and station coverage.
| Agency | Source ID | Magnitude | Depth | Epicenter |
|---|---|---|---|---|
USGS Primary | iscgem821946 | M 8.2 | 26.9 km | 40.89, 143.36 |
USGS Primary | iscgem822083 | M 7.9 | 31.1 km | 41.50, 142.86 |
Nearest mapped active fault: Unnamed Fault, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).
View live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for this zone.