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M3.1 Depth: 40.0 km

M3.1 Earthquake near SHIKOKU, JAPAN (Japan)

UTC time: 2025-12-28 23:33:30 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near SHIKOKU, JAPAN (Japan) on December 28, 2025 at 23:33 UTC. With a focal depth of about 40 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. Japan: over the past 24 hours, QuakeMap24 logged 4 earthquakes, the strongest at M3.8.

Details

Magnitude
M3.1
Depth
40.0 km
UTC time
2025-12-28 23:33:30 UTC
Local time
—
Country
Japan
City
xi yu shi
Source
emsc
Coordinates
33.30000, 132.40000
Temperature
10.9°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

  • Yufu-Tsurumi
    Distance: 94 km ·Lava dome(s) ·Elevation: 1'584 m ·Last eruption: 867 ·Japan
  • Kujusan
    Distance: 110 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan
  • Asosan
    Distance: 131 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Abu
    Distance: 155 km ·Volcanic field ·Elevation: 641 m ·Last eruption: -6850 ·Japan
  • Unzendake
    Distance: 205 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
  • Sanbesan
    Distance: 206 km ·Stratovolcano ·Elevation: 1'126 m ·Last eruption: 650 ·Japan

Historic earthquake map · Japan

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

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

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