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M3.1 Depth: 20.0 km

M3.1 Earthquake near NEAR EAST COAST OF HONSHU, JAPAN

UTC time: 2025-10-21 08:23:30 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near NEAR EAST COAST OF HONSHU, JAPAN on October 21, 2025 at 08:23 UTC. With a focal depth of about 20 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC.

Details

Magnitude
M3.1
Depth
20.0 km
UTC time
2025-10-21 08:23:30 UTC
Local time
—
Country
—
Source
emsc
Coordinates
36.70000, 141.10000
Temperature
16.5°C

Map

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 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

  • Nasudake
    Distance: 112 km ·Stratovolcano(es) ·Elevation: 1'915 m ·Last eruption: 1963 ·Japan
  • Takaharayama
    Distance: 120 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Adatarayama
    Distance: 128 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan
  • Bandaisan
    Distance: 135 km ·Stratovolcano ·Elevation: 1'816 m ·Last eruption: 1888 ·Japan
  • Azumayama
    Distance: 138 km ·Stratovolcano(es) ·Elevation: 1'949 m ·Last eruption: 1977 ·Japan
  • Nantaisan
    Distance: 144 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan

Stats (last 24h)

Global (24h)
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Country (24h)
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