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M4.1 Earthquake near NEAR EAST COAST OF HONSHU, JAPAN

UTC time: 2026-04-21 04:50:30 UTC Local time: —
Magnitude
M4.1
Depth
50.0 km
Source
EMSC

NEAR EAST COAST OF HONSHU, JAPAN

Map

About this earthquake

On April 21, 2026 at 04:50 UTC, a magnitude M4.1 earthquake occurred near NEAR EAST COAST OF HONSHU, JAPAN. The hypocenter lay relatively close to the surface at around 50 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC.

Details

ID
94b5b7abb6b1d8de3cab6c8631da27634f911fb9
Magnitude
M4.1
Depth
50.0 km
UTC time
2026-04-21 04:50:30 UTC
Local time
—
Country
—
Source
emsc
Coordinates
37.20000, 141.40000
Temperature
17.5°C

Depth profile

Depth profile Depth: 50 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 50 km
Shallow
50 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

  • Adatarayama
    Distance: 111 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan
  • Azumayama
    Distance: 118 km ·Stratovolcano(es) ·Elevation: 1'949 m ·Last eruption: 1977 ·Japan
  • Bandaisan
    Distance: 125 km ·Stratovolcano ·Elevation: 1'816 m ·Last eruption: 1888 ·Japan
  • Nasudake
    Distance: 128 km ·Stratovolcano(es) ·Elevation: 1'915 m ·Last eruption: 1963 ·Japan
  • Zaozan [Zaosan]
    Distance: 135 km ·Complex ·Elevation: 1'841 m ·Last eruption: 1940 ·Japan
  • Takaharayama
    Distance: 148 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Fukushima Daini nuclear power plantJapanPermanently shut downReactor units at site: 4
    35.5 kmStraight-line distance
  • Fukushima Daiichi nuclear power plantJapanPermanently shut downReactor units at site: 6
    40.8 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

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)
529
Country (24h)
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