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M4.9 Depth: 10.0 km

M4.9 Earthquake near Near East Coast of Honshu, Japan

UTC time: 2025-08-21 23:06:10 UTC Local time: —

About this earthquake

A magnitude M4.9 earthquake was recorded near Near East Coast of Honshu, Japan on August 21, 2025 at 23:06 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by GFZ.

Details

Magnitude
M4.9
Depth
10.0 km
UTC time
2025-08-21 23:06:10 UTC
Local time
—
Country
—
Source
gfz
Coordinates
38.82000, 142.42000
Temperature
25.3°C

Map

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
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

  • Kurikomayama
    Distance: 142 km ·Stratovolcano ·Elevation: 1'627 m ·Last eruption: 1950 ·Japan
  • Naruko
    Distance: 147 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan
  • Iwatesan
    Distance: 168 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Akita-Komagatake
    Distance: 174 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Hachimantai
    Distance: 185 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Zaozan [Zaosan]
    Distance: 188 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan

Stats (last 24h)

Global (24h)
657
Country (24h)
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