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M3.9 Depth: 10.0 km

M3.9 Earthquake near NEAR WEST COAST OF HONSHU, JAPAN (Japan)

UTC time: 2025-07-21 19:05:30 UTC Local time: —

About this earthquake

On July 21, 2025 at 19:05 UTC, a magnitude M3.9 earthquake occurred near NEAR WEST COAST OF HONSHU, JAPAN (Japan). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks.

Details

Magnitude
M3.9
Depth
10.0 km
UTC time
2025-07-21 19:05:30 UTC
Local time
—
Country
Japan
City
zhu zhou shi
Source
emsc
Coordinates
37.80000, 137.70000
Temperature
27.3°C

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than 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

  • Niigata-Yakeyama
    Distance: 102 km ·Lava dome ·Elevation: 2'400 m ·Last eruption: 1998 ·Japan
  • Myokosan
    Distance: 107 km ·Stratovolcano ·Elevation: 2'454 m ·Last eruption: -750 ·Japan
  • Midagahara
    Distance: 137 km ·Stratovolcano ·Elevation: 2'621 m ·Last eruption: 1839 ·Japan
  • Shiga
    Distance: 143 km ·Shield(s) ·Elevation: 2'041 m ·Japan
  • Kusatsu-Shiranesan
    Distance: 151 km ·Stratovolcano(es) ·Elevation: 2'165 m ·Last eruption: 2018 ·Japan
  • Hiuchigatake
    Distance: 169 km ·Stratovolcano ·Elevation: 2'356 m ·Last eruption: 1544 ·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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