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M4.8 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2026-04-20 10:37:33 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
M4.8
Depth
22.0 km
Source
GFZ

Off East Coast of Honshu, Japan

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About this earthquake

On April 20, 2026 at 10:37 UTC, a magnitude M4.8 earthquake occurred near Off East Coast of Honshu, Japan. The hypocenter lay relatively close to the surface at around 22 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

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

Details

ID
202ea5c8d4069f77a82e63b3c3124413f9a6b055
Magnitude
M4.8
Depth
22.0 km
UTC time
2026-04-20 10:37:33 UTC
Local time
—
Country
—
Source
gfz
Coordinates
39.39000, 143.48000
Temperature
10.5°C

Depth profile

Depth profile Depth: 22 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 22 km
Shallow
22 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: 218 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 233 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 233 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Kurikomayama
    Distance: 237 km ·Stratovolcano ·Last eruption: 1950 ·Japan
  • Akita-Yakeyama
    Distance: 242 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Naruko
    Distance: 248 km ·Caldera ·Elevation: 470 m ·Last eruption: 837 ·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)
499
Country (24h)
—
—
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