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M5.1 Depth: 40.8 km

M5.1 Earthquake near 90 km E of Tomioka, Japan

UTC time: 2025-10-23 21:09:28 UTC Local time: —

About this earthquake

A magnitude M5.1 earthquake was recorded near 90 km E of Tomioka, Japan on October 23, 2025 at 21:09 UTC. With a focal depth of about 41 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can damage poorly built structures.

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

Details

Magnitude
M5.1
Depth
40.8 km
UTC time
2025-10-23 21:09:28 UTC
Local time
—
Country
—
Source
usgs
Coordinates
37.41990, 142.03580
Temperature
15.8°C

Map

Depth profile

Depth profile Depth: 40.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40.8 km
Shallow
40.8 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
Namie91.7 kmW21'866
Iwaki110.0 kmW357'309
Sendai139.3 kmNW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Adatarayama
    Distance: 157 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan
  • Zaozan [Zaosan]
    Distance: 162 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan
  • Azumayama
    Distance: 162 km ·Stratovolcano(es) ·Elevation: 1'949 m ·Last eruption: 1977 ·Japan
  • Bandaisan
    Distance: 174 km ·Stratovolcano ·Elevation: 1'816 m ·Last eruption: 1888 ·Japan
  • Naruko
    Distance: 185 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan
  • Nasudake
    Distance: 186 km ·Stratovolcano(es) ·Elevation: 1'915 m ·Last eruption: 1963 ·Japan

Subsequent earthquakes nearby

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

First 6 hours3
First 24 hours3
First 72 hours4
Strongest subsequent eventM5.5
M5.12025-10-23 21:09:29 UTC17.4 kmNEAR EAST COAST OF HONSHU, JAPAN M5.22025-10-23 21:09:29 UTC16.9 kmNear East Coast of Honshu, Japan M3.92025-10-24 00:27:30 UTC91.6 kmNEAR EAST COAST OF HONSHU, JAPAN M3.52025-10-25 16:09:30 UTC147.9 kmNEAR EAST COAST OF HONSHU, JAPAN M3.62025-10-28 22:50:30 UTC77.9 kmNEAR EAST COAST OF HONSHU, JAPAN M4.32025-10-30 07:55:30 UTC66.6 kmNEAR EAST COAST OF HONSHU, JAPAN M4.92025-10-30 08:00:52 UTC70.9 kmNEAR EAST COAST OF HONSHU, JAPAN M4.92025-10-30 08:00:53 UTC68.6 kmNear East Coast of Honshu, Japan M3.82025-11-02 11:43:30 UTC67.8 kmNEAR EAST COAST OF HONSHU, JAPAN M3.92025-11-04 04:07:30 UTC12.2 kmOFF EAST COAST OF HONSHU, JAPAN M3.92025-11-06 14:38:30 UTC82.1 kmNEAR EAST COAST OF HONSHU, JAPAN M3.92025-11-08 09:17:30 UTC98.6 kmNEAR EAST COAST OF HONSHU, JAPAN

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#25
Earlier events M≥497
Earlier events M≥533
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 15:21:09 UTC34.0 kmNEAR EAST COAST OF HONSHU, JAPAN M6.02025-10-04 15:21:09 UTC34.0 km56 km E of Tomioka, Japan M6.02025-10-04 15:21:07 UTC13.3 kmNear east coast of eastern Honshu, Japan [Sea: Japan] M6.02025-10-04 15:21:05 UTC46.5 kmNear East Coast of Honshu, Japan M6.02025-08-29 16:29:21 UTC106.1 km63 km E of Onagawa Cho, Japan

Stats (last 24h)

Global (24h)
653
Country (24h)
—
—
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