M3.3 earthquake 80 km SW of Miyanoura, Kagoshima, Japan

Name: M3.3 earthquake 80 km SW of Miyanoura, Kagoshima, Japan
Start: 2026-10-01T19:05:00.000Z
End: 2026-10-01T19:05:00.000Z
Location: 80 km SW of Miyanoura, Kagoshima, Japan

A magnitude 3.3 earthquake struck 80 km SW of Miyanoura, Kagoshima, Japan at 04:05 local time (19:05 UTC) on 2 Oct 2026, at a depth of 10 km, according to JMA. The solution is preliminary and may be revised.

Data: JMA · updated 2026-10-01 19:08 UTC · automatic solution

Magnitude: 3.3minor
JMA magnitude (Mj)
Depth: 10 km
Status: Automatic
Origin time: 2026-10-01 19:05:00 UTC; Local: 2 Oct 2026, 04:05:00 (Asia/Tokyo)
Epicentre: 29.900° N, 130.000° 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
Place	Distance	Est. shaking
MiyanouraKagoshima, Japan · pop. 6,544	80 km	INot felt
KosedaKagoshima, Japan · pop. 11,858	83 km	INot felt
KagoshimaJapan · pop. 595,049	193 km	INot felt
MiyazakiJapan · pop. 401,339	262 km	INot felt
NagasakiJapan · pop. 409,118	317 km	INot felt
KotōKumamoto, Japan · pop. 543,730	328 km	INot felt
KumamotoJapan · pop. 738,907	330 km	INot felt

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 19 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.

Agency	Magnitude	Depth	Epicentre	Time offset	Status
JMAheadlineJMA via Japan Meteorological Agency	3.3 Mj	10 km	29.90° N, 130.00° E	–	Automatic

How big was it?

Often felt by people at rest close to the epicentre, rarely causes damage.

It released roughly the energy of 1.3 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.

Compare M3.3 with M2.3

M3.3 releases about 32× the energy of M2.3, and its waves are about 10× taller on a seismogram. Energy: 1.3 t of TNT vs 43 kg of TNT.

Each square is the energy of one M2.3. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

No later earthquakes have been recorded within 30 km so far. 2 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports on SeismoAtlas

No reports yet.

Event id jma20261002040524. First recorded here 1 Oct 2026, 19:10:23 UTC. Solutions: JMA (jma:20261002040524). Cite as: SeismoAtlas, “M3.3 earthquake 80 km SW of Miyanoura, Kagoshima, Japan”, https://seismoatlas.com/earthquake/jma20261002040524-m3-3-earthquake-80-km-sw-of-miyanoura-kagoshima-japan, data from JMA.

JSON: /api/v1/events/jma20261002040524. SeismoAtlas is not an official warning service.