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M3.4 Depth: 10.0 km

M3.4 Earthquake near Ashikita, Kumamoto Prefecture (Japan)

UTC time: 2026-08-13 19:52:30 UTC Local time: —

About this earthquake

On August 13, 2026 at 19:52 UTC, a magnitude M3.4 earthquake occurred near Ashikita, Kumamoto 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. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC. Japan: 5 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

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 (32.6 km)
Regional average: 32.6 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: 44 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
  • Kirishimayama
    Distance: 62 km ·Shield ·Elevation: 1'700 m ·Last eruption: 2025 ·Japan
  • Yonemaru-Sumiyoshiike
    Distance: 70 km ·Maar(s) ·Elevation: 40 m ·Last eruption: -6200 ·Japan
  • Asosan
    Distance: 77 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Aira
    Distance: 93 km ·Caldera ·Elevation: 1'117 m ·Last eruption: 2026 ·Japan
  • Kujusan
    Distance: 104 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·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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