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M6.0 Earthquake near 56 km E of Tomioka, Japan

UTC time: 2025-10-04 15:21:09 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M6.0
Depth
46.8 km
Source
NNSN

56 km E of Tomioka, Japan

Map

M6.0 Earthquake near 56 km E of Tomioka, Japan · 2025-10-04 — Map showing the location of the epicenter
M6.0 Earthquake near 56 km E of Tomioka, Japan · 2025-10-04 — Map showing the location of the epicenter

About this earthquake

A magnitude M6.0 earthquake was recorded near 56 km E of Tomioka, Japan on October 4, 2025 at 15:21 UTC. The hypocenter lay relatively close to the surface at around 47 km, increasing how strongly it was felt. Earthquakes of this magnitude can cause significant damage in populated areas.

The data is provided by NNSN and cross-checked across seismological networks.

Details

ID
18d11a9ef85648ce8bbe157a86043e32e89f6097
Magnitude
M6.0
Depth
46.8 km
UTC time
2025-10-04 15:21:09 UTC
Local time
—
Country
—
Source
nnsn
Coordinates
37.38700, 141.65300

Depth profile

Depth profile Depth: 46.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 46.8 km
Shallow
46.8 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
Namie58.6 kmW21'866
Iwaki77.8 kmSW357'309
Sendai119.7 kmNW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Adatarayama
    Distance: 124 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan
  • Azumayama
    Distance: 130 km ·Stratovolcano(es) ·Elevation: 1'949 m ·Last eruption: 1977 ·Japan
  • Zaozan [Zaosan]
    Distance: 136 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan
  • Bandaisan
    Distance: 141 km ·Stratovolcano ·Elevation: 1'816 m ·Last eruption: 1888 ·Japan
  • Nasudake
    Distance: 152 km ·Stratovolcano(es) ·Elevation: 1'915 m ·Last eruption: 1963 ·Japan
  • Naruko
    Distance: 170 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Fukushima Daiichi nuclear power plantJapanPermanently shut downReactor units at site: 6
    54.9 kmStraight-line distance
  • Fukushima Daini nuclear power plantJapanPermanently shut downReactor units at site: 4
    55.9 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 250 km. They are not automatically classified as aftershocks.

First 6 hours1
First 24 hours1
First 72 hours16
Strongest subsequent eventM5.6
M5.62025-10-04 15:21:12 UTC30.5 kmEvent of magnitude 5.6, near of Sendai (Monde) M4.82025-10-06 14:20:25 UTC224.8 kmOFF EAST COAST OF HONSHU, JAPAN M4.82025-10-06 14:20:25 UTC226.9 kmOff East Coast of Honshu, Japan M4.82025-10-06 14:20:29 UTC214.9 km239 km ESE of Onagawa Chō, Japan M4.92025-10-06 14:58:00 UTC221.8 kmOFF EAST COAST OF HONSHU, JAPAN M5.02025-10-06 14:58:00 UTC227.5 kmEvent of magnitude 5.0, near of Sendai (Monde) M5.12025-10-06 14:58:00 UTC229.0 kmOff East Coast of Honshu, Japan M4.92025-10-06 14:58:00 UTC228.5 km253 km ESE of Onagawa Chō, Japan M4.72025-10-06 18:25:05 UTC228.0 kmOff East Coast of Honshu, Japan M4.72025-10-06 18:25:05 UTC221.6 kmOff east coast of Honshu M5.12025-10-07 00:30:20 UTC60.8 kmNear East Coast of Honshu, Japan M5.12025-10-07 00:30:24 UTC36.8 km28 km ENE of Namie, Japan

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1
Earlier events M≥4160
Earlier events M≥534
Compared since2025-01-05

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

Strongest earlier events

M6.02025-10-04 15:21:07 UTC21.1 kmNear east coast of eastern Honshu, Japan [Sea: Japan] M6.02025-10-04 15:21:05 UTC13.9 kmNear East Coast of Honshu, Japan M6.02025-08-29 16:29:21 UTC118.0 km63 km E of Onagawa Cho, Japan M5.82025-08-29 16:29:16 UTC131.4 kmNear East Coast of Honshu, Japan M5.82025-08-21 22:34:46 UTC157.1 kmNear east coast of eastern Honshu, Japan [Sea: Japan]

Stats (last 24h)

Global (24h)
518
Country (24h)
—
—
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