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Japan · Kumamoto Prefecture

M5.6 Earthquake near Ashikita, Kumamoto Prefecture (Japan)

UTC time: 2026-07-28 08:08:35 UTC Local time: —
Magnitude
M5.6
Depth
10.0 km
Source
USGS

Kumamoto Prefecture · Ashikita

Country overview

Map

M5.6 Earthquake near Ashikita, Kumamoto Prefecture (Japan) · 2026-07-28 — Map showing the location of the epicenter
M5.6 Earthquake near Ashikita, Kumamoto Prefecture (Japan) · 2026-07-28 — Map showing the location of the epicenter

About this earthquake

On July 28, 2026 at 08:08 UTC, a magnitude M5.6 earthquake occurred near Ashikita, Kumamoto Prefecture (Japan). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by USGS. Japan: over the past 24 hours, QuakeMap24 logged 4 earthquakes, the strongest at M4.1.

Details

ID
9c0da987aec9202ccd4ec51e08dab3d2645366f9
Magnitude
M5.6
Depth
10.0 km
UTC time
2026-07-28 08:08:35 UTC
Local time
—
Country
Japan
State
Kumamoto Prefecture
City
Ashikita
County
Ashikita County
Source
usgs
Coordinates
32.35290, 130.58680
Temperature
30.6°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 (33.9 km)
Regional average: 33.9 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

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Sashiki9.7 kmSW15'681
Honmachi16.9 kmN123'067
Kōtō City49.6 kmN543'730

GeoNames · CC BY 4.0

Volcanoes nearby

  • Unzendake
    Distance: 53 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
  • Kirishimayama
    Distance: 53 km ·Shield ·Elevation: 1'700 m ·Last eruption: 2025 ·Japan
  • Yonemaru-Sumiyoshiike
    Distance: 65 km ·Maar(s) ·Elevation: 40 m ·Last eruption: -6200 ·Japan
  • Asosan Activity reported
    Distance: 75 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
  • Aira Activity reported
    Distance: 87 km ·Caldera ·Elevation: 1'117 m ·Last eruption: 2026 ·Japan
  • Kujusan
    Distance: 102 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Amakusa AirportJapan · AXJ · RJDA
    42.7 kmStraight-line distance
  • Kumamoto AirportJapan · KMJ · RJFT
    59.4 kmStraight-line distance
  • Kagoshima AirportJapan · KOJ · RJFK
    62.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-05

Nuclear power plants

  • Sendai nuclear power plantJapanOperating at dataset dateReactor units at site: 2
    68.9 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

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

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours45
First 24 hours70
First 72 hours104
Strongest subsequent eventM5.4
M3.92026-07-28 08:10:30 UTC18.3 kmYatsushiro M3.12026-07-28 08:14:30 UTC43.5 kmKosa M4.92026-07-28 08:18:54 UTC4.2 kmAshikita M3.22026-07-28 08:25:30 UTC40.0 kmKumamoto M3.42026-07-28 08:27:30 UTC29.5 kmUki M3.42026-07-28 08:32:30 UTC19.5 kmYatsushiro M3.92026-07-28 08:37:30 UTC16.4 kmYatsushiro M3.92026-07-28 08:43:30 UTC27.5 kmYatsushiro M3.12026-07-28 08:45:30 UTC16.4 kmYatsushiro M3.62026-07-28 08:50:30 UTC27.5 kmYatsushiro M4.12026-07-28 08:54:30 UTC40.0 kmKumamoto M4.12026-07-28 08:57:30 UTC29.5 kmUki

Comparison of seismic sources

5 sources currently report magnitudes from M5.1 to M5.8.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
USGSM5.610.0 km0.0 km
EMSCM5.711.0 km14.8 km
SERBIA_RSZM5.810.0 km24.3 km
GFZM5.661.0 km22.0 km
RESIFM5.174.7 km16.8 km

Kumamoto Prefecture

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 199 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#6
Earlier events M≥463
Earlier events M≥518
Compared since2025-01-06

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M7.12026-07-28 07:28:00 UTC29.5 kmUki M7.12025-01-13 12:19:32 UTC110.4 kmMiyazaki M5.72026-03-01 09:00:07 UTC138.0 kmnan jiu zhou shi M5.72025-11-25 09:01:18 UTC72.1 kmKyushu M5.72025-08-16 21:13:12 UTC117.6 kmKyushu, 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.

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