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M3.8 Depth: 40.0 km

M3.8 Earthquake near SHIKOKU, JAPAN (Japan)

UTC time: 2025-08-11 21:34:30 UTC Local time: —

About this earthquake

A magnitude M3.8 earthquake was recorded near SHIKOKU, JAPAN (Japan) on August 11, 2025 at 21:34 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

Magnitude
M3.8
Depth
40.0 km
UTC time
2025-08-11 21:34:30 UTC
Local time
—
Country
Japan
City
song shan shi
Source
emsc
Coordinates
33.80000, 132.80000
Temperature
28.6°C

Map

Depth profile

Depth profile Depth: 40 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40 km
Shallow
40 km
40 km — close to the regional average (35.3 km)
Regional average: 35.3 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

  • Abu
    Distance: 140 km ·Volcanic field ·Elevation: 641 m ·Last eruption: -6850 ·Japan
  • Yufu-Tsurumi
    Distance: 143 km ·Lava dome(s) ·Elevation: 1'584 m ·Last eruption: 867 ·Japan
  • Sanbesan
    Distance: 150 km ·Stratovolcano ·Elevation: 1'126 m ·Last eruption: 650 ·Japan
  • Kujusan
    Distance: 164 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan
  • Asosan
    Distance: 189 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Unzendake
    Distance: 260 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan

Historic earthquake map · Japan

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Country statistics · Japan

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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