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M5.5 Depth: 10.0 km

M5.5 Earthquake near Off East Coast of Honshu, Japan

UTC time: 2026-04-20 08:32:45 UTC Local time: —

About this earthquake

On April 20, 2026 at 08:32 UTC, a magnitude M5.5 earthquake occurred near Off East Coast of Honshu, Japan. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by GFZ.

Details

Magnitude
M5.5
Depth
10.0 km
UTC time
2026-04-20 08:32:45 UTC
Local time
—
Country
—
Source
gfz
Coordinates
39.57000, 143.21000
Temperature
9.8°C

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
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
Yamada108.7 kmW15'195
Morioka177.0 kmW290'700
Sendai249.2 kmSW1'096'704

GeoNames · CC BY 4.0

Volcanoes nearby

  • Iwatesan
    Distance: 192 km ·Complex ·Elevation: 2'038 m ·Last eruption: 1919 ·Japan
  • Hachimantai
    Distance: 206 km ·Stratovolcano ·Elevation: 1'613 m ·Last eruption: -5350 ·Japan
  • Akita-Komagatake
    Distance: 207 km ·Stratovolcano(es) ·Elevation: 1'637 m ·Last eruption: 1971 ·Japan
  • Akita-Yakeyama
    Distance: 214 km ·Stratovolcano ·Elevation: 1'366 m ·Last eruption: 1997 ·Japan
  • Kurikomayama
    Distance: 219 km ·Stratovolcano ·Elevation: 1'627 m ·Last eruption: 1950 ·Japan
  • Towada
    Distance: 224 km ·Caldera ·Elevation: 1'011 m ·Last eruption: 915 ·Japan

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours17
First 24 hours32
First 72 hours61
Strongest subsequent eventM6.7
M5.62026-04-20 08:32:47 UTC8.8 km113 km E of Miyako, Japan M5.12026-04-20 08:32:53 UTC135.7 kmEvent of magnitude 5.1, near Sendai (Monde) M5.12026-04-20 08:33:38 UTC94.5 km M5.12026-04-20 09:49:42 UTC42.5 kmEvent of magnitude 5.1, near Sendai (Monde) M5.42026-04-20 09:49:43 UTC25.1 km M5.32026-04-20 09:49:43 UTC27.2 kmOff East Coast of Honshu, Japan M3.82026-04-20 10:00:32 UTC28.4 km M4.82026-04-20 10:37:31 UTC24.3 kmOFF EAST COAST OF HONSHU, JAPAN M4.82026-04-20 10:37:33 UTC30.6 kmOff East Coast of Honshu, Japan M5.32026-04-20 10:44:12 UTC16.4 kmOff East Coast of Honshu, Japan M5.02026-04-20 10:44:16 UTC10.3 km111 km E of Yamada, Japan M5.12026-04-20 12:56:45 UTC13.4 kmOFF EAST COAST OF HONSHU, JAPAN

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#70
Earlier events M≥4352
Earlier events M≥5202
Compared since2025-01-05

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

Strongest earlier events

M7.62026-04-20 07:52:57 UTC57.1 kmOff East Coast of Honshu, Japan M7.52026-04-20 07:52:59 UTC11.0 kmOff east coast of Honshu, Japan [Sea: Japan] M7.42026-04-20 07:53:01 UTC44.8 km100 km ENE of Miyako, Japan M7.42026-04-20 07:52:59 UTC37.1 kmOff East Coast of Honshu, Japan M7.42026-04-20 07:52:58 UTC54.9 kmNEAR EAST COAST OF HONSHU, JAPAN

Stats (last 24h)

Global (24h)
657
Country (24h)
—
—
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