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M6.6 Depth: 14.0 km

M6.6 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2025-11-09 08:03:39 UTC Local time: —

About this earthquake

On November 9, 2025 at 08:03 UTC, a magnitude M6.6 earthquake occurred near Off East Coast of Honshu, Japan. The hypocenter lay relatively close to the surface at around 14 km, increasing how strongly it was felt. Events of this size are considered strong and can be dangerous in inhabited regions.

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

Details

Magnitude
M6.6
Depth
14.0 km
UTC time
2025-11-09 08:03:39 UTC
Local time
—
Country
—
Source
gfz
Coordinates
39.45000, 143.34000
Temperature
17.2°C

Map

Depth profile

Depth profile Depth: 14 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14 km
Shallow
14 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
Yamada119.3 kmW15'195
Morioka189.7 kmW290'700
Sendai251.3 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Iwatesan
    Distance: 205 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 220 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 220 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Kurikomayama
    Distance: 227 km ·Stratovolcano ·Elevation: 1'627 m ·Last eruption: 1950 ·Japan
  • Akita-Yakeyama
    Distance: 228 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Naruko
    Distance: 239 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan

Subsequent earthquakes nearby

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

First 6 hours40
First 24 hours85
First 72 hours97
Strongest subsequent eventM7.6
M6.42025-11-09 08:03:40 UTC17.0 kmEvent of magnitude 6.4, near of Sendai (Monde) M6.72025-11-09 08:03:42 UTC14.8 km133 km E of Yamada, Japan M5.62025-11-09 08:11:26 UTC16.7 kmOff East Coast of Honshu, Japan M5.52025-11-09 08:11:26 UTC19.0 km107 km E of Yamada, Japan M5.52025-11-09 08:11:27 UTC26.3 km M5.92025-11-09 08:14:53 UTC14.1 km M5.72025-11-09 08:14:53 UTC17.7 kmOff East Coast of Honshu, Japan M5.92025-11-09 08:14:53 UTC12.5 km127 km E of Yamada, Japan M5.22025-11-09 08:14:59 UTC60.7 kmEvent of magnitude 5.2, near of Sendai (Monde) M5.52025-11-09 08:34:02 UTC10.5 km M5.42025-11-09 08:34:02 UTC10.4 kmOff East Coast of Honshu, Japan M5.62025-11-09 08:34:02 UTC6.5 km125 km E of Yamada, Japan

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#3
Earlier events M≥4185
Earlier events M≥551
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 UTC8.6 km126 km E of Yamada, Japan M6.82025-11-09 08:03:38 UTC4.3 km M6.02025-11-08 22:15:08 UTC21.6 kmOff east coast of Honshu, Japan [Sea: Japan] M5.82025-08-29 16:29:16 UTC141.5 kmNear East Coast of Honshu, Japan M5.82025-08-21 22:34:46 UTC131.9 kmNear east coast of eastern Honshu, Japan [Sea: Japan]

Stats (last 24h)

Global (24h)
668
Country (24h)
—
—
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