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Japan · Niigata Prefecture

M3.3 Earthquake near Uonuma, Niigata Prefecture (Japan)

UTC time: 2026-07-11 03:42:30 UTC Local time: —

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About this earthquake

A magnitude M3.3 earthquake was recorded near Uonuma, Niigata Prefecture (Japan) on July 11, 2026 at 03:42 UTC. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC. Japan: over the past 24 hours, QuakeMap24 logged 2 earthquakes, the strongest at M3.6.

Details

ID
ab1bb091450152699e76a87c88e44346c7c65791
Magnitude
M3.3
Depth
0.0 km
UTC time
2026-07-11 03:42:30 UTC
Local time
—
Country
Japan
State
Niigata Prefecture
City
Uonuma
Source
emsc
Coordinates
37.30000, 139.10000
Temperature
28.4°C

Depth profile

Depth profile Depth: 0 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 0 km
Shallow
0 km
0 km — shallower than the regional average (33.7 km)
Regional average: 33.7 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

Volcanoes nearby

  • Hiuchigatake
    Distance: 42 km ·Stratovolcano ·Elevation: 2'356 m ·Last eruption: 1544 ·Japan
  • Numazawa
    Distance: 44 km ·Shield ·Elevation: 835 m ·Last eruption: -3400 ·Japan
  • Nikko-Shiranesan
    Distance: 61 km ·Shield ·Elevation: 2'578 m ·Last eruption: 1952 ·Japan
  • Omanago Group
    Distance: 64 km ·Lava dome(s) ·Elevation: 2'341 m ·Last eruption: -3050 ·Japan
  • Nantaisan
    Distance: 69 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Takaharayama
    Distance: 75 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Kashiwazaki Kariwa nuclear power plantJapanUnder construction · Out of operation · Operating at dataset dateReactor units at site: 7
    46.9 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

Japan

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 968 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Japan

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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