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

UTC time: 2025-08-21 23:06:10 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.

Magnitude
M4.9
Depth
10.0 km
Source
GFZ

Near East Coast of Honshu, Japan

Map

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

ID
0fb7cb65874c15ada04f81ddf9be297a8366b888
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

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 ·Last eruption: 1950 ·Japan
  • Naruko
    Distance: 147 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·Japan
  • Iwatesan Activity reported
    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

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

Stats (last 24h)

Global (24h)
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Country (24h)
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