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M4.2 Earthquake near NEAR EAST COAST OF HONSHU, JAPAN

UTC time: 2026-08-20 05:28:30 UTC Local time: —
Magnitude
M4.2
Depth
40.0 km
Source
EMSC

NEAR EAST COAST OF HONSHU, JAPAN

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About this earthquake

On August 20, 2026 at 05:28 UTC, a magnitude M4.2 earthquake occurred near NEAR EAST COAST OF HONSHU, JAPAN. The hypocenter lay relatively close to the surface at around 40 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

ID
a49286e815a23cb704d2b98eb32cfa79757a128e
Magnitude
M4.2
Depth
40.0 km
UTC time
2026-08-20 05:28:30 UTC
Local time
—
Country
—
Source
emsc
Coordinates
36.40000, 140.90000
Temperature
25.0°C

Depth profile

Depth profile Depth: 40 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40 km
Shallow
40 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

Felt reports

1felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Aug 20, 2026, 5:31 AM UTC · Last checked: Sep 20, 2026, 12:07 AM UTC

Source: EMSC / LastQuake

Volcanoes nearby

  • Takaharayama
    Distance: 115 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Nasudake
    Distance: 116 km ·Stratovolcano(es) ·Elevation: 1'915 m ·Last eruption: 1963 ·Japan
  • Nantaisan
    Distance: 132 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Omanago Group
    Distance: 135 km ·Lava dome(s) ·Elevation: 2'341 m ·Last eruption: -3050 ·Japan
  • Nikko-Shiranesan
    Distance: 143 km ·Shield ·Elevation: 2'578 m ·Last eruption: 1952 ·Japan
  • Adatarayama
    Distance: 149 km ·Stratovolcano(es) ·Elevation: 1'728 m ·Last eruption: 1996 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Ibaraki AirportJapan · IBR · RJAH
    49.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

Nuclear power plants

  • Tokai nuclear power plantJapanUnder construction · Permanently shut downReactor units at site: 2
    26.7 kmStraight-line distance
  • Japan Power Demonstration Reactor nuclear power plantJapanPermanently shut downReactor units at site: 1Approximate location
    27.1 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)
623
Country (24h)
—
—
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