Earthquakes 122 km E of Yamada, Japan — Light shaking (MMI 4.3)
Right now
Nothing else has been detected within 20 km in the last 24 hours.
Reported by USGS 169 days ago.
It is the strongest of the 13 detections recorded within 20 km of this point since 8 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
USGS reported: 122 km E of Yamada, Japan — Light shaking (MMI 4.3)
USGS recorded magnitude 6.5 at a depth of 10 km.
Nearby, since 8 March 2026
- March 13, 2026 · score 18 · 11.9 km
- August 28, 2026 · score 6 · 12.5 km
- March 8, 2026 · score 30 · 12.5 km
How we know
One source: USGS. Not yet confirmed by a second, independent source.
Our own score for this event is 32 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | High |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 60% |
| Coordinates | 39.4462, 143.3717 |
| Nearest City | Yamada (122 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-26T14:18:50.947Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us7000s7u4/shakemap |
Score Breakdown
Technical Details
| Mag | 6.5 |
| Depth | 9.51 |
| Mmi | 4.28 |
| MmiDescription | Light |
| Felt | 4 |
| Alert | green |
| Sig | 652 |
| Tsunami | false |
| Place | 122 km E of Yamada, Japan |
| Types | ,dyfi,ground-failure,losspager,moment-tensor,origin,phase-data,shakemap, |
Cascade Risks
Safety Information
If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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