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M7.4 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2026-04-20 07:52:59 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

M7.4

Depth: 29.0 km
Source: GFZ

Off East Coast of Honshu, Japan

Map

About this earthquake

A magnitude M7.4 earthquake was recorded near Off East Coast of Honshu, Japan on April 20, 2026 at 07:52 UTC. The hypocenter lay relatively close to the surface at around 29 km, increasing how strongly it was felt. Events of this size can trigger serious destruction across large regions.

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

Details

b691a95636bbef82caedc12254bcd7d058ae9c85

Magnitude

M7.4

Depth

29.0 km

UTC time

2026-04-20 07:52:59 UTC

Local time

—

Country

—

Source

gfz

Coordinates

39.87000, 143.02000

Temperature

9.1°C

Depth profile

Shallow

29 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

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation

Miyako95.5 kmW51'150

Hachinohe146.9 kmNW239'046

Sendai257.6 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

Iwatesan Activity reported

Distance: 172 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
Hachimantai

Distance: 185 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
Akita-Komagatake

Distance: 190 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
Akita-Yakeyama

Distance: 193 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
Towada

Distance: 195 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan
Hakkodasan

Distance: 202 km ·Stratovolcano(es) ·Elevation: 1'584 m ·Last eruption: 1550 ·Japan

Subsequent earthquakes nearby

Events recorded after this earthquake within 500 km. They are not automatically classified as aftershocks.

First 6 hours31

First 24 hours49

First 72 hours81

Strongest subsequent eventM7.4

M7.42026-04-20 07:53:00 UTC9.5 km###.# km ( ###.# mi) NW (az= 308.7) from Wendover, UT M5.32026-04-20 08:03:08 UTC81.8 kmOFF EAST COAST OF HONSHU, JAPAN M4.12026-04-20 08:08:46 UTC194.6 km M5.22026-04-20 08:08:54 UTC32.3 kmNEAR EAST COAST OF HONSHU, JAPAN M3.92026-04-20 08:13:02 UTC368.2 km M4.12026-04-20 08:14:48 UTC23.2 km M4.42026-04-20 08:15:19 UTC88.6 km M4.12026-04-20 08:23:47 UTC194.6 km M4.32026-04-20 08:30:10 UTC23.2 km M4.82026-04-20 08:32:42 UTC217.4 km M5.72026-04-20 08:32:42 UTC185.0 km113 km E of Miyako, Japan M5.62026-04-20 08:32:43 UTC29.0 kmOFF EAST COAST OF HONSHU, 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

Historical context nearby

Comparison with recorded earthquakes before this event within 500 km.

Magnitude rank#7

Earlier events M≥4984

Earlier events M≥5441

Compared since2025-01-05

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M7.72025-12-08 14:15:13 UTC144.1 km M7.62026-04-20 07:52:57 UTC25.2 kmOff East Coast of Honshu, Japan M7.62025-12-08 14:15:12 UTC149.1 kmHOKKAIDO, JAPAN REGION M7.62025-12-08 14:15:10 UTC150.1 km74 km ENE of Misawa, Japan M7.62025-12-08 14:15:09 UTC139.6 km84 km ENE of Misawa, Japan

Stats (last 24h)

Global (24h)

519

Country (24h)

—

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