Earthquakes 33 km SSW of Honchō, Japan — Light shaking (MMI 4.4)
Right now
Nothing else has been detected within 20 km in the last 24 hours.
Reported by USGS 16 days ago.
It is one of only 4 we have recorded within 20 km of this point since 23 August 2026. Another comparable one was recorded here earlier the same day.
What the source measured
USGS reported: 33 km SSW of Honchō, Japan — Light shaking (MMI 4.4)
USGS recorded magnitude 6.0 at a depth of 43 km.
Nearby, since 23 August 2026
- August 23, 2026 · score 22 · 0.0 km
- August 30, 2026 · score 0 · 26.2 km
How we know
One source: USGS. Not yet confirmed by a second, independent source.
Our own score for this event is 22 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 41.8344, 142.8255 |
| Nearest City | Shizunai-furukawachō (67 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-23T13:44:53.514Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us6000tmz6/shakemap |
Score Breakdown
Technical Details
| Mag | 6 |
| Depth | 42.87 |
| Mmi | 4.43 |
| MmiDescription | Light |
| Felt | 9 |
| Alert | green |
| Sig | 557 |
| Tsunami | false |
| Place | 33 km SSW of Honchō, 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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