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M3.5 Depth: 10.0 km

M3.5 Earthquake near Isen, Kagoshima Prefecture (Japan)

UTC time: 2026-08-31 02:55:30 UTC Local time: —

About this earthquake

On August 31, 2026 at 02:55 UTC, a magnitude M3.5 earthquake occurred near Isen, Kagoshima Prefecture (Japan). 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. Japan: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

Magnitude
M3.5
Depth
10.0 km
UTC time
2026-08-31 02:55:30 UTC
Local time
—
Country
Japan
State
Kagoshima Prefecture
City
Isen
County
Oshima County
Source
emsc
Coordinates
27.70000, 128.70000
Temperature
27.8°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 (32.9 km)
Regional average: 32.9 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

  • Io-Torishima
    Distance: 51 km ·Complex ·Elevation: 212 m ·Last eruption: 1968 ·Japan
  • Yokoatejima
    Distance: 126 km ·Stratovolcano(es) ·Elevation: 495 m ·Last eruption: 1835 ·Japan
  • Akusekijima
    Distance: 215 km ·Stratovolcano(es) ·Elevation: 555 m ·Japan
  • Suwanosejima
    Distance: 237 km ·Stratovolcano(es) ·Elevation: 796 m ·Last eruption: 2026 ·Japan
  • Nakanoshima
    Distance: 265 km ·Stratovolcano(es) ·Elevation: 979 m ·Last eruption: 1914 ·Japan
  • Kuchinoshima
    Distance: 279 km ·Stratovolcano(es) ·Elevation: 628 m ·Last eruption: 1190 ·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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