Japan · Chiba Prefecture

M3.2 Earthquake near Katsuura, Chiba Prefecture (Japan)

UTC time: 2026-09-12 07:49:30 UTC Local time:

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About this earthquake

On September 12, 2026 at 07:49 UTC, a magnitude M3.2 earthquake occurred near Katsuura, Chiba Prefecture (Japan). The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC.

Details

ID
a7fb25b6e59d64609a0664543cdcee522ae1b19d
Magnitude
M3.2
Depth
20.0 km
UTC time
2026-09-12 07:49:30 UTC
Local time
Country
City
Source
emsc
Coordinates
35.20000, 140.30000
Temperature
25.1°C

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 km
20 km — shallower than the regional average (33.1 km)
Regional average: 33.1 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

  • Distance: 98 km ·Stratovolcano ·Elevation: 758 m ·Last eruption: 1990 ·Japan
  • Distance: 115 km ·Pyroclastic cone(s) ·Elevation: 580 m ·Last eruption: 1989 ·Japan
  • Distance: 116 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan
  • Distance: 120 km ·Stratovolcano ·Elevation: 508 m ·Last eruption: -4550 ·Japan
  • Distance: 130 km ·Lava dome(s) ·Elevation: 432 m ·Last eruption: 886 ·Japan
  • Distance: 142 km ·Stratovolcano ·Elevation: 775 m ·Last eruption: 2010 ·Japan

Japan

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 3.0 · 952 Catalogue entries

Of 951 other entries for this area and period, 663 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Japan

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Country statistics · Japan

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