Back to map
M3.0 Depth: 10.0 km

M3.0 Earthquake near Mashiki, Kumamoto Prefecture (Japan)

UTC time: 2026-08-03 07:24:30 UTC Local time: —

About this earthquake

A magnitude M3.0 earthquake was recorded near Mashiki, Kumamoto Prefecture (Japan) on August 3, 2026 at 07:24 UTC. 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: 7 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

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

  • Asosan
    Distance: 28 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Unzendake
    Distance: 47 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
  • Kujusan
    Distance: 53 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan
  • Yufu-Tsurumi
    Distance: 77 km ·Lava dome(s) ·Last eruption: 867 ·Japan
  • Kirishimayama
    Distance: 96 km ·Shield ·Elevation: 1'700 m ·Last eruption: 2025 ·Japan
  • Yonemaru-Sumiyoshiike
    Distance: 116 km ·Maar(s) ·Elevation: 40 m ·Last eruption: -6200 ·Japan

Historic earthquake map · Japan

Open history map
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.

Share