Reported by EMSC 22 days ago.
It is the 10th strongest of the 33 detections recorded within 20 km of this point since 22 May 2026. The last comparable one was on 2 August 2026. 2 more were recorded here in the fortnight before it.
What the source measured
EMSC reported: NEAR EAST COAST OF HONSHU, JAPAN
Nearby, since 22 May 2026
- August 8, 2026 · score 21 · 2.1 km
- June 6, 2026 · score 16 · 6.3 km
- July 30, 2026 · score 3 · 6.4 km
How we know
One source: EMSC. Not yet confirmed by a second, independent source.
Our own score for this event is 19 out of 100, at 63 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Earthquake |
| Severity | medium |
| Calamity Score (ours) | 19 / 100 |
| Our confidence | 63% |
| Coordinates | 40.1899, 142.3006 |
| Nearest City | Kuji (45 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-08T17:57:58.300Z |
| Source | https://www.seismicportal.eu/eventdetail.html?unid=20260808_0000261 |
Score Breakdown
Technical Details
| Mag | 5.4 |
| Depth | -26.2 |
| MagType | mb |
| Region | NEAR EAST COAST OF HONSHU, JAPAN |
| Auth | EMSC |
| SourceId | 2039709 |
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 10 February 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.
Calamity.live data shows a earthquake event with CalamityScore 19/100, in Near East Coast of Honshu, Japan (Japan), based on data from emsc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.