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M4.3 earthquake 4 km W of Wakasu, Kumamoto, Japan

A magnitude 4.3 earthquake struck 4 km W of Wakasu, Kumamoto, Japan at 10:53 local time (01:53 UTC) on 8 Nov 2026, at a depth of 10 km, according to JMA and USGS. The solution is preliminary and may be revised.

Reported by 2 agencies

Data: JMA, USGS · updated 2026-11-08 02:39 UTC · automatic solution

Magnitude
4.3light
JMA magnitude (Mj)
Depth
10 km
Status
Automatic
Origin time
2026-11-08 01:53:00 UTC
Local: 8 Nov 2026, 10:53:00 (Asia/Tokyo)
Epicentre
32.600° N, 130.600° E

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
WakasuKumamoto, Japan · pop. 11,0944 kmVModerate
UkiKumamoto, Japan · pop. 59,9286 kmVModerate
MatsubaseKumamoto, Japan · pop. 26,1639 kmVModerate
UtoKumamoto, Japan · pop. 37,44211 kmIVLight
HonmachiKumamoto, Japan · pop. 123,06711 kmIVLight
KotōKumamoto, Japan · pop. 543,73024 kmIVLight
KumamotoJapan · pop. 738,90725 kmIVLight
NagasakiJapan · pop. 409,11869 kmIIWeak

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 59 km.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses JMA.

AgencyMagnitudeDepthEpicentreTime offsetStatus
JMAheadlineJMA via Japan Meteorological Agency4.3 Mj10 km32.60° N, 130.60° E–Automatic
USGSUSGS NEIC via U.S. Geological Survey4.5 mb10 km32.50° N, 130.47° E+16.2 sReviewed

How big was it?

Widely felt near the epicentre: rattling windows and objects. Significant damage is unlikely.

It released roughly the energy of 43 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M4.3 releases about 32× the energy of M3.3, and its waves are about 10× taller on a seismogram. Energy: 43 t of TNT vs 1.3 t of TNT.

Each square is the energy of one M3.3. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

4 later earthquakes within 30 km; the largest was M2.8 4 days ago. 4 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M4.3

4 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.472.810
9.902.00
69.672.70
106.832.110
  1. 2.84 km W of Wakasu, Kumamoto, Japan11-08 02:21
  2. 2.75 km NNE of Shimada, Kumamoto, Japan11-10 23:33
  3. 2.14 km NE of Uto, Kumamoto, Japan11-12 12:43
  4. 2.04 km ESE of Uki, Kumamoto, Japan11-08 11:47

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id jma20261108105319. First recorded here 8 Nov 2026, 01:57:29 UTC. Solutions: JMA (jma:20261108105319); USGS (usgs:us7000twvb). Cite as: SeismoAtlas, “M4.3 earthquake 4 km W of Wakasu, Kumamoto, Japan”, https://seismoatlas.com/earthquake/jma20261108105319-m4-3-earthquake-4-km-w-of-wakasu-kumamoto-japan, data from JMA, USGS.

JSON: /api/v1/events/jma20261108105319. SeismoAtlas is not an official warning service.