M4.0 Depth: 10.0 km

M4.0 Earthquake near Yatsushiro, Kumamoto Prefecture (Japan)

UTC time: 2026-08-06 07:18:30 UTC Local time: —

About this earthquake

A magnitude M4.0 earthquake was recorded near Yatsushiro, Kumamoto Prefecture (Japan) on August 6, 2026 at 07:18 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC. Japan: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M3.4.

Details

Magnitude

M4.0

Depth

10.0 km

UTC time

2026-08-06 07:18:30 UTC

Local time

—

Country

Japan

State

Kumamoto Prefecture

City

Yatsushiro

Source

emsc

Coordinates

32.60000, 130.60000

Temperature

33.6°C

Map

Depth profile

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

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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Country statistics · Japan

Country overview

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

Stats (last 24h)

Global (24h)

616

Country (24h)