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M5.2 Earthquake near 163 km S of Ōyama, Japan

UTC time: 2025-12-23 09:44:22 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. How our reports are produced ↗

Magnitude
M5.2
Depth
336.9 km
Source
USGS

163 km S of Ōyama, Japan

Map

M5.2 Earthquake near 163 km S of Ōyama, Japan · 2025-12-23 — Map showing the location of the epicenter
M5.2 Earthquake near 163 km S of Ōyama, Japan · 2025-12-23 — Map showing the location of the epicenter

About this earthquake

On December 23, 2025 at 09:44 UTC, a magnitude M5.2 earthquake occurred near 163 km S of Ōyama, Japan. At roughly 337 km, the focus was very deep, so surface shaking tends to be weaker. Events of this size can cause damage near the epicenter.

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

Details

ID
89beb933d4b8ea12eb5e6e8f611091af6559f9cb
Magnitude
M5.2
Depth
336.9 km
UTC time
2025-12-23 09:44:22 UTC
Local time
—
Country
—
Source
usgs
Coordinates
33.14920, 137.93630
Temperature
18.2°C

Depth profile

Depth profile Depth: 336.9 km (Deep) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 336.9 km
Deep
336.9 km
Why depth matters

Deep quakes are felt over very large areas but rarely cause surface damage.

Depth classes per USGS

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Omaezaki163.3 kmN31'103
Iwata172.6 kmN166'672
Hamamatsu173.5 kmN791'707

GeoNames · CC BY 4.0

Volcanoes nearby

  • Kozushima
    Distance: 164 km ·Lava dome(s) ·Elevation: 572 m ·Last eruption: 838 ·Japan
  • Kurose Hole
    Distance: 164 km ·Caldera ·Elevation: -114 m ·Japan
  • Hachijojima
    Distance: 170 km ·Stratovolcano(es) ·Elevation: 854 m ·Last eruption: 1606 ·Japan
  • Mikurajima
    Distance: 174 km ·Stratovolcano ·Elevation: 851 m ·Last eruption: -4100 ·Japan
  • Miyakejima
    Distance: 181 km ·Stratovolcano ·Elevation: 775 m ·Last eruption: 2010 ·Japan
  • Niijima
    Distance: 186 km ·Lava dome(s) ·Elevation: 432 m ·Last eruption: 886 ·Japan

Comparison of seismic sources

2 sources currently report magnitudes from M5.0 to M5.2.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
USPM5.0324.1 km4.8 km
USGSM5.2336.9 km0.0 km

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#3
Earlier events M≥423
Earlier events M≥58
Compared since2025-02-17

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

Strongest earlier events

M5.32025-12-12 19:03:12 UTC90.5 kmIZU ISLANDS, JAPAN REGION M5.22025-02-26 05:53:23 UTC128.6 kmNear S. Coast of Western Honshu M5.22025-12-23 09:44:21 UTC14.3 kmNear South Coast of Honshu, Japan M5.22025-12-23 09:44:21 UTC13.3 kmNEAR S. COAST OF HONSHU, JAPAN M5.22025-12-12 19:03:12 UTC94.0 kmSoutheast of Honshu, Japan

Stats (last 24h)

Global (24h)
500
Country (24h)
—
—
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