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M5.6 Earthquake near Southeast of Honshu, Japan [Sea: Japan]

UTC time: 2026-06-18 19:17:42 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. How our reports are produced ↗

Magnitude
M5.6
Depth
10.9 km
Source
INGV

Southeast of Honshu, Japan [Sea: Japan]

Map

M5.6 Earthquake near Southeast of Honshu, Japan [Sea: Japan] · 2026-06-18 — Map showing the location of the epicenter
M5.6 Earthquake near Southeast of Honshu, Japan [Sea: Japan] · 2026-06-18 — Map showing the location of the epicenter

About this earthquake

On June 18, 2026 at 19:17 UTC, a magnitude M5.6 earthquake occurred near Southeast of Honshu, Japan [Sea: Japan]. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

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

Details

ID
6e229f447a89fc5750b193cce1d44f439a8b0115
Magnitude
M5.6
Depth
10.9 km
UTC time
2026-06-18 19:17:42 UTC
Local time
—
Country
—
Source
ingv
Coordinates
30.47340, 142.03300
Temperature
22.4°C

Depth profile

Depth profile Depth: 10.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.9 km
Shallow
10.9 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

Tectonic context

Located on the Philippine Sea Plate.
Near the boundary Philippine Sea ↔ Pacific · about 26 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Tateyama540.8 kmN50'064
Yokosuka578.6 kmN409'478
Yokohama594.6 kmN3'777'491

GeoNames · CC BY 4.0

Volcanoes nearby

  • Izu-Torishima
    Distance: 166 km ·Stratovolcano ·Elevation: 394 m ·Last eruption: 2002 ·Japan
  • Sofugan
    Distance: 179 km ·Stratovolcano ·Elevation: 99 m ·Japan
  • Sumisujima
    Distance: 217 km ·Caldera ·Elevation: 136 m ·Last eruption: 1916 ·Japan
  • Suiyo Seamount
    Distance: 251 km ·Stratovolcano ·Elevation: -991 m ·Japan
  • Myojinsho
    Distance: 255 km ·Caldera ·Elevation: 11 m ·Last eruption: 1970 ·Japan
  • Kita-Bayonnaise
    Distance: 275 km ·Caldera ·Elevation: -360 m ·Japan

Subsequent earthquakes nearby

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

First 6 hours1
First 24 hours1
First 72 hours2
Strongest subsequent eventM5.2
M5.22026-06-18 19:17:46 UTC46.2 kmSoutheast of Honshu, Japan M4.52026-06-20 13:12:58 UTC68.5 kmIZU ISLANDS, JAPAN REGION M4.82026-06-23 11:36:00 UTC6.9 kmSoutheast of Honshu, Japan M4.82026-06-23 11:36:00 UTC9.0 kmIZU ISLANDS, JAPAN REGION M4.52026-06-23 11:36:01 UTC4.9 kmIzu Islands, Japan region M4.82026-06-27 14:15:37 UTC114.5 kmSoutheast of Honshu, Japan M4.82026-06-27 14:15:37 UTC127.8 kmIZU ISLANDS, JAPAN REGION M4.72026-07-04 17:03:59 UTC85.9 kmIzu Islands, Japan region M4.42026-07-04 17:44:46 UTC86.5 kmIzu Islands, Japan region

Comparison of seismic sources

2 sources currently report magnitudes from M5.6 to M5.6.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
INGVM5.610.9 km0.0 km
ISCM5.610.9 km0.0 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 150 km.

Magnitude rank#4
Earlier events M≥474
Earlier events M≥525
Compared since2025-01-02

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

Strongest earlier events

M5.92026-06-01 03:34:31 UTC25.9 kmSoutheast of Honshu, Japan [Sea: Japan] M5.72026-06-01 03:34:31 UTC43.1 kmSoutheast of Honshu, Japan M5.72026-06-01 03:34:30 UTC38.4 kmIZU ISLANDS, JAPAN REGION M5.62026-06-01 03:34:31 UTC51.5 kmSoutheast of Honshu, Japan M5.52026-06-01 03:34:30 UTC39.0 kmSoutheast of Honshu, Japan

Stats (last 24h)

Global (24h)
490
Country (24h)
—
—
Current earthquakes in
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