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M6.1 Depth: 10.0 km

M6.1 Earthquake near OFF COAST OF HOKKAIDO, JAPAN

UTC time: 2025-06-21 21:23:17 UTC Local time: —

About this earthquake

A magnitude M6.1 earthquake was recorded near OFF COAST OF HOKKAIDO, JAPAN on June 21, 2025 at 21:23 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size are considered strong and can be dangerous in inhabited regions.

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

Details

Magnitude
M6.1
Depth
10.0 km
UTC time
2025-06-21 21:23:17 UTC
Local time
—
Country
—
Source
emsc
Coordinates
42.93000, 146.47000
Temperature
14.9°C

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 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
Nemuro84.8 kmNW31'223
Kushiro170.6 kmW167'875
Sapporo416.6 kmW1'973'832

GeoNames · CC BY 4.0

Volcanoes nearby

  • Tomariyama [Golovnin]
    Distance: 128 km ·Caldera ·Elevation: 535 m ·Last eruption: 1848 ·Japan - administered by Russia
  • Raususan [Mendeleev]
    Distance: 131 km ·Stratovolcano ·Elevation: 882 m ·Last eruption: 1880 ·Japan - administered by Russia
  • Chachadake [Tiatia]
    Distance: 159 km ·Stratovolcano ·Elevation: 1'822 m ·Last eruption: 1981 ·Japan - administered by Russia
  • Tenchozan
    Distance: 167 km ·Crater rows ·Elevation: 1'046 m ·Japan
  • Rausudake
    Distance: 168 km ·Stratovolcano ·Elevation: 1'660 m ·Last eruption: 1800 ·Japan
  • Mashu
    Distance: 170 km ·Caldera ·Elevation: 857 m ·Last eruption: 1080 ·Japan

Subsequent earthquakes nearby

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

First 6 hours6
First 24 hours10
First 72 hours12
Strongest subsequent eventM6.0
M6.02025-06-21 21:23:18 UTC9.2 kmOff Coast of Hokkaido, Japan M4.32025-06-21 21:53:44 UTC27.8 km M4.32025-06-21 21:53:45 UTC19.9 km99 km SE of Nemuro, Japan M4.62025-06-21 23:03:06 UTC17.8 km M4.02025-06-22 02:11:08 UTC14.3 km M4.42025-06-22 02:11:08 UTC14.3 km77 km ESE of Nemuro, Japan M4.22025-06-22 10:06:35 UTC31.1 km M4.22025-06-22 10:06:35 UTC28.6 km109 km SE of Nemuro, Japan M4.42025-06-22 18:04:23 UTC24.4 km M4.22025-06-22 18:04:24 UTC17.1 km95 km SE of Nemuro, Japan M5.02025-06-23 17:55:11 UTC175.4 kmHokkaido, Japan Region M5.22025-06-23 17:55:12 UTC163.1 km

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1
Earlier events M≥462
Earlier events M≥58
Compared since2025-01-13

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

Strongest earlier events

M6.12025-05-31 08:37:15 UTC172.3 km83 km SSE of Kushiro, Japan M6.12025-05-31 08:37:15 UTC168.4 km M6.02025-06-18 23:08:05 UTC5.9 kmOff Coast of Hokkaido, Japan M6.02025-05-31 08:37:19 UTC179.3 kmHokkaido, Japan Region M5.92025-06-18 23:08:05 UTC8.1 km

Stats (last 24h)

Global (24h)
672
Country (24h)
—
—
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