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M4.5 Earthquake near EASTERN HONSHU, JAPAN (Japan)

UTC time: 2025-12-21 23:33:05 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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About this earthquake

A magnitude M4.5 earthquake was recorded near EASTERN HONSHU, JAPAN (Japan) on December 21, 2025 at 23:33 UTC. The hypocenter lay relatively close to the surface at around 64 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC. Japan: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
55ed1b14936a333eeafa2cab5f3418b8d6ed8f20
Magnitude
M4.5
Depth
63.6 km
UTC time
2025-12-21 23:33:05 UTC
Local time
—
Country
Japan
City
yan quan ting
Source
emsc
Coordinates
39.85110, 141.80850
Temperature
2.8°C

Depth profile

Depth profile Depth: 63.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 63.6 km
Shallow
63.6 km
63.6 km — deeper 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

Volcanoes nearby

  • Iwatesan Activity reported
    Distance: 69 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 82 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 87 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Akita-Yakeyama
    Distance: 91 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Towada
    Distance: 108 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan
  • Hakkodasan
    Distance: 120 km ·Stratovolcano(es) ·Elevation: 1'584 m ·Last eruption: 1550 ·Japan

Japan

Context for this earthquake

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

Of 968 other entries for this area and period, 161 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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Country statistics · Japan

Country overview
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