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M3.8 Depth: 10.0 km

M3.8 Earthquake near Yatsushiro, Kumamoto Prefecture (Japan)

UTC time: 2026-08-18 22:10:30 UTC Local time: —

About this earthquake

On August 18, 2026 at 22:10 UTC, a magnitude M3.8 earthquake occurred near Yatsushiro, Kumamoto Prefecture (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 event was recorded by EMSC. Japan: over the past 24 hours, QuakeMap24 logged 2 earthquakes, the strongest at M4.0.

Details

Magnitude
M3.8
Depth
10.0 km
UTC time
2026-08-18 22:10:30 UTC
Local time
—
Country
Japan
State
Kumamoto Prefecture
City
Yatsushiro
Source
emsc
Coordinates
32.60000, 130.60000
Temperature
26.9°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 (32.8 km)
Regional average: 32.8 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

  • Unzendake
    Distance: 33 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
  • Asosan
    Distance: 55 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Kirishimayama
    Distance: 78 km ·Shield ·Elevation: 1'700 m ·Last eruption: 2025 ·Japan
  • Kujusan
    Distance: 81 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan
  • Yonemaru-Sumiyoshiike
    Distance: 92 km ·Maar(s) ·Elevation: 40 m ·Last eruption: -6200 ·Japan
  • Yufu-Tsurumi
    Distance: 106 km ·Lava dome(s) ·Last eruption: 867 ·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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