Magnitude
M3.8
- Depth
- 40.0 km
- Source
- EMSC
da chuan du shi
Country overviewJapan
M3.8 Earthquake near NEAR EAST COAST OF HONSHU, JAPAN (Japan)
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About this earthquake
A magnitude M3.8 earthquake was recorded near NEAR EAST COAST OF HONSHU, JAPAN (Japan) on October 21, 2025 at 05:20 UTC. With a focal depth of about 40 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.
The data is provided by EMSC and cross-checked across seismological networks.
Details
ID
b0b2ebaf7b78f3fafc9a4a1214b8b7df008bf97e
Magnitude
M3.8
Depth
40.0 km
UTC time
2025-10-21 05:20:30 UTC
Local time
—
Country
City
da chuan du shi
Source
emsc
Coordinates
38.90000,
142.10000
Temperature
13.6°C
Depth profile
Shallow
40 km
40 km — close to the regional average (33.7 km)
Regional average: 33.7 km
Why depth matters
Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.
Depth classes per USGS
Volcanoes nearby
-
Iwatesan Activity reported
Japan
Context for this earthquake
05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 968 Catalogue entries
Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.
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