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Japan · Kumamoto Prefecture

M3.6 Earthquake near Mashiki, Kumamoto Prefecture (Japan)

UTC time: 2026-09-26 02:21:30 UTC Local time: —

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About this earthquake

A magnitude M3.6 earthquake was recorded near Mashiki, Kumamoto Prefecture (Japan) on September 26, 2026 at 02:21 UTC. 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.

Details

ID
764aaeafdb18475f8d37de0536f0e1c2c1e68080
Magnitude
M3.6
Depth
10.0 km
UTC time
2026-09-26 02:21:30 UTC
Local time
—
Country
Japan
State
Kumamoto Prefecture
City
Mashiki
County
Kamimashiki County
Source
emsc
Coordinates
32.80000, 130.80000
Temperature
20.5°C

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 (33.2 km)
Regional average: 33.2 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

Felt reports

1felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Sep 26, 2026, 2:22 AM UTC · Last checked: Oct 4, 2026, 10:52 AM UTC

Source: EMSC / LastQuake

Volcanoes nearby

  • Asosan Activity reported
    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

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Kumamoto AirportJapan · KMJ · RJFT
    6.6 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-04

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Kumamoto Prefecture

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 199 Catalogue entries

Of 198 other entries for this area and period, 64 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Japan

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Country statistics · Japan

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