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M4.8 Earthquake near OFF EAST COAST OF HONSHU, JAPAN

UTC time: 2026-04-21 02:35:47 UTC Local time: —
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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
35.4 km
Source
EMSC

OFF EAST COAST OF HONSHU, JAPAN

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About this earthquake

On April 21, 2026 at 02:35 UTC, a magnitude M4.8 earthquake occurred near OFF EAST COAST OF HONSHU, JAPAN. The hypocenter lay relatively close to the surface at around 35 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

ID
bcd648cf72e79267430e6a632fdf37a1284e62ba
Magnitude
M4.8
Depth
35.4 km
UTC time
2026-04-21 02:35:47 UTC
Local time
—
Country
—
Source
emsc
Coordinates
39.86080, 143.16560
Temperature
9.8°C

Depth profile

Depth profile Depth: 35.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35.4 km
Shallow
35.4 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: 185 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 197 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 202 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Akita-Yakeyama
    Distance: 206 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Towada
    Distance: 207 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan
  • Hakkodasan
    Distance: 214 km ·Stratovolcano(es) ·Elevation: 1'584 m ·Last eruption: 1550 ·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)
519
Country (24h)
—
—
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