M7.3 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2026-04-20 07:52:55 UTC Local time: —

Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

Magnitude

M7.3

Depth: 10.0 km
Source: USP

Off East Coast of Honshu, Japan

Map

About this earthquake

On April 20, 2026 at 07:52 UTC, a magnitude M7.3 earthquake occurred near Off East Coast of Honshu, Japan. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are major events and can cause severe damage over a wide area.

The event was recorded by USP.

Details

d623bb0dc5c70c283ea19acd20155137acb521fc

Magnitude

M7.3

Depth

10.0 km

UTC time

2026-04-20 07:52:55 UTC

Local time

—

Country

—

Source

usp

Coordinates

39.84471, 143.42491

Depth profile

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

Nearby population centers

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

PlaceDistanceDirectionPopulation

Miyako128.8 kmW51'150

Hachinohe179.0 kmNW239'046

Sendai282.1 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

Iwatesan

Distance: 207 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
Hachimantai

Distance: 220 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
Akita-Komagatake

Distance: 225 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
Akita-Yakeyama

Distance: 228 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
Towada

Distance: 229 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan
Hakkodasan

Distance: 234 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 hours38

First 24 hours56

First 72 hours88

Strongest subsequent eventM7.6

M7.42026-04-20 07:52:56 UTC15.5 km115 km ENE of Miyako, Japan M7.62026-04-20 07:52:57 UTC36.3 kmOff East Coast of Honshu, Japan M7.42026-04-20 07:52:58 UTC43.9 kmNEAR EAST COAST OF HONSHU, JAPAN M6.32026-04-20 07:52:58 UTC119.2 km M6.92026-04-20 07:52:58 UTC68.2 kmEvent of magnitude 6.9, near Sendai (Monde) M7.42026-04-20 07:52:59 UTC34.7 kmOff East Coast of Honshu, Japan M7.52026-04-20 07:52:59 UTC32.5 kmOff east coast of Honshu, Japan [Sea: Japan] M7.42026-04-20 07:53:00 UTC34.5 km###.# km ( ###.# mi) NW (az= 308.7) from Wendover, UT M5.32026-04-20 08:03:08 UTC59.4 kmOFF EAST COAST OF HONSHU, JAPAN M4.12026-04-20 08:08:46 UTC205.8 km M5.22026-04-20 08:08:54 UTC13.4 kmNEAR EAST COAST OF HONSHU, JAPAN M3.92026-04-20 08:13:02 UTC373.7 km

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#8

Earlier events M≥4965

Earlier events M≥5432

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 UTC165.9 km M7.62025-12-08 14:15:12 UTC170.8 kmHOKKAIDO, JAPAN REGION M7.62025-12-08 14:15:10 UTC171.9 km74 km ENE of Misawa, Japan M7.62025-12-08 14:15:09 UTC159.9 km84 km ENE of Misawa, Japan M7.52025-12-08 14:15:10 UTC167.5 kmHokkaido, Japan Region

Stats (last 24h)

Global (24h)

512

Country (24h)

—

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