M6.6 earthquake 129 km S of Honchō, Japan
A magnitude 6.6 earthquake struck 129 km S of Honchō, Japan at Dec 8, 4:52 PM ET, 19 km deep, strong – damage in populated areas near the epicenter. 4 people reported feeling it.
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| Magnitude | 6.6 mww |
| Time | 8 Dec 2025, 21:52 UTC |
| Location | 40.976°, 143.150° – 129 km S of Honchō, Japan |
| Depth | 19.0 km |
| Felt reports | 4 |
| Max. estimated intensity (MMI) | 4.5 |
| PAGER alert | green |
| USGS event | us6000rtie |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 7.6 | 2025 Aomori Prefecture, Japan Earthquake · tsunami flag · PAGER yellow | Dec 8, 9:15 AM 312 d ago | 41 km | 259 reports |
| 6.7 | 117 km NE of Kuji, Japan · tsunami flag · PAGER green | Dec 11, 9:44 PM 309 d ago | 19 km | 21 reports |
| 6.0 | 96 km E of Noda, Japan · PAGER green | Dec 31, 9:26 AM 289 d ago | 27 km | 2 reports |
| 6.0 | 127 km S of Honchō, Japan · PAGER green | Dec 8, 1:56 PM 312 d ago | 23 km | 1 report |
| 5.7 | 108 km ENE of Hachinohe, Japan · PAGER green | Dec 10, 9:52 AM 310 d ago | 33 km | – |
| 5.6 | 103 km E of Yokohama, Japan · PAGER green | Dec 25, 11:17 AM 295 d ago | 54 km | – |
| 5.6 | 109 km NE of Kuji, Japan · PAGER green | Dec 8, 6:59 PM 312 d ago | 48 km | – |
| 5.5 | 121 km E of Noda, Japan · PAGER green | Apr 21, 2:44 PM 178 d ago | 16 km | – |
| 5.5 | 93 km ENE of Hachinohe, Japan · PAGER green | Dec 8, 9:33 AM 312 d ago | 35 km | 4 reports |
| 5.4 | 57 km ENE of Misawa, Japan · PAGER green | Dec 20, 8:29 PM 300 d ago | 57 km | 4 reports |
| 5.3 | 94 km E of Yokohama, Japan | Jan 22, 9:31 AM 267 d ago | 57 km | 1 report |
| 5.3 | 97 km SSW of Honchō, Japan · PAGER green | Jan 16, 2:34 PM 273 d ago | 37 km | 2 reports |
About this earthquake
How strong was the 129 km S of Honchō, Japan earthquake?
Magnitude 6.6 (mww), strong – damage in populated areas near the epicenter. Depth 19 km. Strongest estimated shaking: intensity 4.5 on the Modified Mercalli scale.
Was it felt?
4 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 3.8.
Were there aftershocks?
4 earthquakes within 100 km in the following two weeks are in our records, the strongest M6.7.
More
Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.