M3.6 earthquake 37 km S of Shizunai-furukawachō, Hokkaido, Japan

Name: M3.6 earthquake 37 km S of Shizunai-furukawachō, Hokkaido, Japan
Start: 2026-10-06T01:48:00.000Z
End: 2026-10-06T01:48:00.000Z
Location: 37 km S of Shizunai-furukawachō, Hokkaido, Japan

A magnitude 3.6 earthquake struck 37 km S of Shizunai-furukawachō, Hokkaido, Japan at 10:48 local time (01:48 UTC) on 6 Oct 2026, at a depth of 70 km, according to JMA. The solution is preliminary and may be revised.

Data: JMA · updated 2026-10-06 01:50 UTC · automatic solution

Magnitude: 3.6minor
JMA magnitude (Mj)
Depth: 70 km
Status: Automatic
Origin time: 2026-10-06 01:48:00 UTC; Local: 6 Oct 2026, 10:48:00 (Asia/Tokyo)
Epicentre: 42.000° N, 142.300° 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
Shizunai-furukawachōHokkaido, Japan · pop. 22,436	37 km	INot felt
NiikappuHokkaido, Japan · pop. 5,696	39 km	INot felt
TomakomaiHokkaido, Japan · pop. 174,806	92 km	INot felt
NoboribetsuHokkaido, Japan · pop. 46,391	105 km	INot felt
ChitoseHokkaido, Japan · pop. 97,950	106 km	INot felt
HakodateHokkaido, Japan · pop. 275,730	131 km	INot felt
SapporoHokkaido, Japan · pop. 1,973,832	142 km	INot felt
AomoriJapan · pop. 298,394	185 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.

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	3.6 Mj	70 km	42.00° N, 142.30° 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 3.8 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 70 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

Compare M3.6 with M2.6

M3.6 releases about 32× the energy of M2.6, and its waves are about 10× taller on a seismogram. Energy: 3.8 t of TNT vs 120 kg of TNT.

Each square is the energy of one M2.6. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

1 later earthquake within 30 km; the largest was M4.3 1 h 12 min ago. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M3.6

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

4.343 km SW of Urakawa, Hokkaido, Japan10-06 01:48

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 jma20261006104835. First recorded here 6 Oct 2026, 01:52:05 UTC. Solutions: JMA (jma:20261006104835). Cite as: SeismoAtlas, “M3.6 earthquake 37 km S of Shizunai-furukawachō, Hokkaido, Japan”, https://seismoatlas.com/earthquake/jma20261006104835-m3-6-earthquake-37-km-s-of-shizunai-furukawacho-hokkaido-japan, data from JMA.

JSON: /api/v1/events/jma20261006104835. SeismoAtlas is not an official warning service.