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Japan

M5.4 Earthquake near Event of magnitude 5.4, near of Sendai (Monde) (Japan)

UTC time: 2025-08-21 22:34:42 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

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

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M5.4 Earthquake near Event of magnitude 5.4, near of Sendai (Monde) (Japan) · 2025-08-21 — Map showing the location of the epicenter
M5.4 Earthquake near Event of magnitude 5.4, near of Sendai (Monde) (Japan) · 2025-08-21 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.4 earthquake was recorded near Event of magnitude 5.4, near of Sendai (Monde) (Japan) on August 21, 2025 at 22:34 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 can cause damage near the epicenter.

The data is provided by RESIF and cross-checked across seismological networks. Japan: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
e792f45012dac660fdc260c7dfc064c4a134af07
Magnitude
M5.4
Depth
10.0 km
UTC time
2025-08-21 22:34:42 UTC
Local time
—
Country
Japan
City
lu qian gao tian shi
Source
resif
Coordinates
38.83772, 141.92220
Temperature
24.6°C

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
10 km — shallower than the regional average (33.2 km)
Regional average: 33.2 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
Kesennuma30.7 kmW61'147
Ichinoseki68.8 kmW114'476
Sendai111.6 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Kurikomayama
    Distance: 99 km ·Stratovolcano ·Last eruption: 1950 ·Japan
  • Naruko
    Distance: 104 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan
  • Iwatesan Activity reported
    Distance: 138 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Akita-Komagatake
    Distance: 141 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Zaozan [Zaosan]
    Distance: 150 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan
  • Hachimantai
    Distance: 155 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Iwate Hanamaki AirportJapan · HNA · RJSI
    94.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-04

Nuclear power plants

  • Onagawa nuclear power plantJapanOut of operation · Operating at dataset date · Permanently shut downReactor units at site: 3
    61.0 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

Subsequent earthquakes nearby

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

First 6 hours7
First 24 hours7
First 72 hours9
Strongest subsequent eventM6.0
M5.52025-08-21 22:34:46 UTC20.3 km M5.82025-08-21 22:34:46 UTC18.1 kmNear east coast of eastern Honshu, Japan [Sea: Japan] M5.72025-08-21 22:34:46 UTC20.3 km51 km SE of Ōfunato, Japan M5.22025-08-21 22:34:49 UTC41.0 kmNear East Coast of Honshu, Japan M4.92025-08-21 23:06:10 UTC43.2 kmNear East Coast of Honshu, Japan M5.02025-08-21 23:06:18 UTC87.5 kmEvent of magnitude 5.0, near of Sendai (Monde) M4.52025-08-21 23:06:18 UTC18.2 km47 km SE of Ōfunato, Japan M3.72025-08-23 17:18:30 UTC36.2 kmNEAR EAST COAST OF HONSHU, JAPAN M3.62025-08-24 04:58:30 UTC86.1 kmNEAR EAST COAST OF HONSHU, JAPAN M3.32025-08-25 02:25:30 UTC9.7 kmNEAR EAST COAST OF HONSHU, JAPAN M4.02025-08-28 09:31:30 UTC60.7 kmNEAR EAST COAST OF HONSHU, JAPAN M5.72025-08-29 16:29:14 UTC96.8 kmNear East Coast of Honshu, Japan

Japan

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 969 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#3
Earlier events M≥451
Earlier events M≥55
Compared since2025-01-05

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

Strongest earlier events

M5.52025-08-21 22:34:41 UTC25.8 kmNear East Coast of Honshu, Japan M5.52025-06-14 10:46:56 UTC77.4 km M5.22025-02-12 21:04:27 UTC83.5 kmNear East Coast of Honshu, Japan M5.12025-06-14 10:46:54 UTC65.9 kmNear East Coast of Honshu, Japan M5.02025-06-14 10:47:01 UTC30.6 kmNEAR EAST COAST OF HONSHU, JAPAN

Historic earthquake map · Japan

Open history map
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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