M 4.2 earthquake – 20 km SW of Urakawa, Japan
·
Local time: Sep 27, 2026 · 16:25 (UTC+9)
LightIntermediate · 71 km
Reviewed by a seismologist
Loading the map…
- Magnitude
- 4.2body-wave magnitude (mb)
- Depth
- 71 kmIntermediate earthquake
- Epicenter
- 42.012, 142.63242 km from Shizunai-furukawachō
- Energy released
- 30 tons of TNTless than one Hiroshima bomb
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 1M2.5+ within 30 km, up to 60 days
- Significance
- 271USGS score, 0–1,000+
Not rare around here
An earthquake at least as strong struck within 300 km on Sep 23, 2026.
How strong was it?
Light earthquake. It released 30 tons of TNT, 16 times less than a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
1 earthquakes of M2.5+ within 30 km in the 60 days after.
The strongest earthquakes within 300 km
Since 1900, around Japan.
- 8.2 1968 Tokachi-Oki Earthquake May 16, 1968
- 8.2 2003 Tokachi-Oki Earthquake Sep 25, 2003
- 8.1 1952 Tokachi-Oki Earthquake Mar 4, 1952
- 7.9 113 km ENE of Miyako, Japan Mar 20, 1960
- 7.9 78 km E of Hachinohe, Japan Mar 9, 1931
- 7.9 70 km S of Honchō, Japan May 16, 1968
- 7.8 off the east coast of Honshu, Japan Dec 28, 1994
- 7.7 277 km SSE of Kushiro, Japan May 3, 1919