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M5.5 Depth: 34.2 km

M5.5 Earthquake near Near east coast of eastern Honshu, Japan [Sea: Japan]

UTC time: 2025-08-29 16:29:19 UTC Local time: —

About this earthquake

On August 29, 2025 at 16:29 UTC, a magnitude M5.5 earthquake occurred near Near east coast of eastern Honshu, Japan [Sea: Japan]. The hypocenter lay relatively close to the surface at around 34 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

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

Details

Magnitude
M5.5
Depth
34.2 km
UTC time
2025-08-29 16:29:19 UTC
Local time
—
Country
—
Source
ingv
Coordinates
38.36070, 142.48200
Temperature
27.0°C

Map

Depth profile

Depth profile Depth: 34.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 34.2 km
Shallow
34.2 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
Kesennuma98.9 kmNW61'147
Ishinomaki103.2 kmW140'151
Sendai141.3 kmW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Naruko
    Distance: 157 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan
  • Kurikomayama
    Distance: 162 km ·Stratovolcano ·Elevation: 1'627 m ·Last eruption: 1950 ·Japan
  • Zaozan [Zaosan]
    Distance: 180 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan
  • Hijiori
    Distance: 204 km ·Caldera ·Elevation: 552 m ·Japan
  • Azumayama
    Distance: 208 km ·Stratovolcano(es) ·Elevation: 1'949 m ·Last eruption: 1977 ·Japan
  • Adatarayama
    Distance: 209 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan

Subsequent earthquakes nearby

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

First 6 hours5
First 24 hours8
First 72 hours8
Strongest subsequent eventM5.5
M5.52025-08-29 16:29:21 UTC27.8 km M5.02025-08-29 16:50:54 UTC134.3 kmOff East Coast of Honshu, Japan M5.02025-08-29 16:51:01 UTC140.9 km61 km E of Tomioka, Japan M5.22025-08-29 16:51:03 UTC135.8 kmEvent of magnitude 5.2, near of Sendai (Monde) M3.92025-08-29 16:53:30 UTC141.1 km M5.02025-08-30 09:26:28 UTC115.6 kmNear East Coast of Honshu, Japan M5.12025-08-30 09:26:31 UTC143.7 kmEvent of magnitude 5.1, near of Sendai (Monde) M4.82025-08-30 09:26:37 UTC133.1 km4 km W of Yamada, Japan M4.32025-09-04 10:23:57 UTC98.3 km M4.52025-09-04 10:23:58 UTC98.3 km78 km ESE of Yamada, Japan M3.22025-09-05 04:01:30 UTC98.3 km M3.92025-09-06 17:39:30 UTC106.2 km

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#6
Earlier events M≥454
Earlier events M≥510
Compared since2025-01-14

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

Strongest earlier events

M5.82025-08-29 16:29:16 UTC11.1 kmNear East Coast of Honshu, Japan M5.82025-08-21 22:34:46 UTC54.9 kmNear east coast of eastern Honshu, Japan [Sea: Japan] M5.72025-08-29 16:29:14 UTC25.7 kmNear East Coast of Honshu, Japan M5.72025-08-21 22:34:46 UTC51.7 km51 km SE of Ōfunato, Japan M5.62025-08-29 16:29:18 UTC45.0 kmEvent of magnitude 5.6, near of Sendai (Monde)

Stats (last 24h)

Global (24h)
657
Country (24h)
—
—
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