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Japan · Aomori Prefecture

M4.7 Earthquake near Mutsu, Aomori Prefecture (Japan)

UTC time: 2026-09-13 08:31:15 UTC Local time: —
Earthquake newsQuakeMap24
First published: Content updated:

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

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About this earthquake

A magnitude M4.7 earthquake was recorded near Mutsu, Aomori Prefecture (Japan) on September 13, 2026 at 08:31 UTC. The earthquake originated at an intermediate depth of about 120 km. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

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

Details

ID
5fcc7a1fe065f512493d619270d7dfb5f8c7bf24
Magnitude
M4.7
Depth
120.4 km
UTC time
2026-09-13 08:31:15 UTC
Local time
—
Country
Japan
State
Aomori Prefecture
City
Mutsu
Source
usgs
Coordinates
41.51250, 141.27150
Temperature
22.2°C

Depth profile

Depth profile Depth: 120.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 120.4 km
Intermediate
120.4 km
120.4 km — deeper than the regional average (33.1 km)
Regional average: 33.1 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Tectonic context

Located on the Okhotsk Plate.
Near the boundary Okhotsk ↔ Amur · about 210 km away

Volcanoes nearby

  • Osorezan
    Distance: 29 km ·Stratovolcano ·Elevation: 878 m ·Last eruption: 1787 ·Japan
  • Esan
    Distance: 34 km ·Lava dome(s) ·Elevation: 617 m ·Last eruption: 1874 ·Japan
  • Hokkaido-Komagatake
    Distance: 79 km ·Stratovolcano ·Elevation: 1'131 m ·Last eruption: 2000 ·Japan
  • Hakkodasan
    Distance: 100 km ·Stratovolcano(es) ·Elevation: 1'584 m ·Last eruption: 1550 ·Japan
  • Kuttara
    Distance: 109 km ·Stratovolcano(es) ·Elevation: 549 m ·Last eruption: 1820 ·Japan
  • Towada
    Distance: 116 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Hakodate AirportJapan · HKD · RJCH
    47.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-20

Nuclear power plants

  • Ohma nuclear power plantJapanUnder constructionReactor units at site: 1
    29.8 kmStraight-line distance
  • Higashidori (Tepco) nuclear power plantJapanOut of operationReactor units at site: 1
    31.8 kmStraight-line distance
  • Higashidori (Tohoku) nuclear power plantJapanOut of operationReactor units at site: 1
    37.4 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

Japan

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 3.0 · 951 Catalogue entries

Of 950 other entries for this area and period, 109 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Japan

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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