A magnitude 8.1 (MW) earthquake occurred on 1944-12-07, 13:35 local time (04:35 UTC) (just now), centered Off the coast of Wakayama (110 km SE, Japan). The hypocenter was located at a shallow depth of 15 km. Primary telemetry verified by USGS alongside 1 regional seismic monitoring networks.
Curated Global Seismic Archive (1700–Present)
21.30 Mt TNT
shallow (Shallow crustal)
Injuries: > 5,000 · ~93.4M 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 |
|---|---|---|
| Wakayama · Wakayama | 110 km | MMI VIII |
| Tsu · Mie | 114 km | MMI VIII |
| Ōsaka · Osaka | 133 km | MMI VIII |
| Kōbe · Hyogo | 142 km | MMI VIII |
| Ōtsu · Shiga | 145 km | MMI VIII |
| Kyoto · Kyoto | 151 km | MMI VIII |
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 | iscgem899647 | M 8.1 | 15 km | 33.73, 136.20 |
Nearest mapped active fault: Senmata, 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.