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M6.3 Depth: 20.0 km

M6.3 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2025-11-09 08:54:39 UTC Local time: —

About this earthquake

On November 9, 2025 at 08:54 UTC, a magnitude M6.3 earthquake occurred near Off East Coast of Honshu, Japan. With a focal depth of about 20 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can cause significant damage in populated areas.

The event was recorded by GFZ.

Details

Magnitude
M6.3
Depth
20.0 km
UTC time
2025-11-09 08:54:39 UTC
Local time
—
Country
—
Source
gfz
Coordinates
39.52000, 143.25000
Temperature
17.2°C

Map

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 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
Yamada111.7 kmW15'195
Morioka181.0 kmW290'700
Sendai248.9 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Iwatesan
    Distance: 196 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 211 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 212 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Akita-Yakeyama
    Distance: 219 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Kurikomayama
    Distance: 221 km ·Stratovolcano ·Elevation: 1'627 m ·Last eruption: 1950 ·Japan
  • Towada
    Distance: 230 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan

Subsequent earthquakes nearby

Events recorded after this earthquake within 250 km. They are not automatically classified as aftershocks.

First 6 hours25
First 24 hours67
First 72 hours80
Strongest subsequent eventM7.7
M5.42025-11-09 09:10:47 UTC11.5 kmOFF EAST COAST OF HONSHU, JAPAN M5.62025-11-09 09:10:47 UTC11.5 km M5.32025-11-09 09:10:48 UTC15.2 kmEvent of magnitude 5.3, near of Sendai (Monde) M5.62025-11-09 09:10:49 UTC12.2 kmOff East Coast of Honshu, Japan M5.02025-11-09 09:16:53 UTC103.5 kmOff East Coast of Honshu, Japan M5.02025-11-09 09:16:58 UTC20.9 kmOFF EAST COAST OF HONSHU, JAPAN M4.62025-11-09 09:21:35 UTC16.1 kmOFF EAST COAST OF HONSHU, JAPAN M5.02025-11-09 09:24:01 UTC151.3 km M5.72025-11-09 09:28:24 UTC25.0 km134 km E of Miyako, Japan M5.42025-11-09 09:28:26 UTC19.6 kmEvent of magnitude 5.4, near of Sendai (Monde) M5.62025-11-09 09:28:26 UTC26.7 kmOff East Coast of Honshu, Japan M5.32025-11-09 09:28:30 UTC58.4 km

Comparison of seismic sources

2 sources currently report magnitudes from M6.3 to M6.8.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
NNSNM6.810.0 km19.5 km
GFZM6.320.0 km0.0 km

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#8
Earlier events M≥4222
Earlier events M≥586
Compared since2025-01-05

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

Strongest earlier events

M6.82025-11-09 08:03:38 UTC19.5 km126 km E of Yamada, Japan M6.82025-11-09 08:03:38 UTC6.7 kmOFF EAST COAST OF HONSHU, JAPAN M6.72025-11-09 08:03:42 UTC25.3 km133 km E of Yamada, Japan M6.72025-11-09 08:03:39 UTC14.5 kmOff east coast of Honshu, Japan [Sea: Japan] M6.62025-11-09 08:03:39 UTC11.0 kmOff East Coast of Honshu, Japan

Stats (last 24h)

Global (24h)
668
Country (24h)
—
—
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