Magnitude
M3.8
- Depth
- 10.0 km
- Source
- EMSC
shi dao cun
Country overviewJapan
M3.8 Earthquake near RYUKYU ISLANDS, JAPAN (Japan)
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About this earthquake
A magnitude M3.8 earthquake was recorded near RYUKYU ISLANDS, JAPAN (Japan) on September 20, 2025 at 20:34 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.
The data is provided by EMSC and cross-checked across seismological networks.
Details
ID
21c9dd53f3379d9f1abbc166865c229697ec005a
Magnitude
M3.8
Depth
10.0 km
UTC time
2025-09-20 20:34:30 UTC
Local time
—
Country
City
shi dao cun
Source
emsc
Coordinates
29.60000,
129.80000
Temperature
29.9°C
Depth profile
Shallow
10 km
10 km — shallower than 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
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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