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Japan · Chiba Prefecture

M3.4 Earthquake near Minamiboso, Chiba Prefecture (Japan)

UTC time: 2026-11-05 02:35:30 UTC Local time: —

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About this earthquake

A magnitude M3.4 earthquake was recorded near Minamiboso, Chiba Prefecture (Japan) on November 5, 2026 at 02:35 UTC. At around 70 km, the focal depth places this among intermediate-depth events. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Japan: 4 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
22c0ba5e3334a09998b4a3b7cdd7a78d01b3b67c
Magnitude
M3.4
Depth
70.0 km
UTC time
2026-11-05 02:35:30 UTC
Local time
—
Country
Japan
State
Chiba Prefecture
City
Minamiboso
Source
emsc
Coordinates
34.90000, 140.00000
Temperature
18.1°C

Depth profile

Depth profile Depth: 70 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 70 km
Intermediate
70 km
70 km — deeper than the regional average (33.9 km)
Regional average: 33.9 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Izu-Oshima
    Distance: 59 km ·Stratovolcano ·Elevation: 758 m ·Last eruption: 1990 ·Japan
  • Toshima
    Distance: 78 km ·Stratovolcano ·Elevation: 508 m ·Last eruption: -4550 ·Japan
  • Izu-Tobu
    Distance: 83 km ·Pyroclastic cone(s) ·Elevation: 580 m ·Last eruption: 1989 ·Japan
  • Niijima
    Distance: 87 km ·Lava dome(s) ·Elevation: 432 m ·Last eruption: 886 ·Japan
  • Hakoneyama
    Distance: 96 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan
  • Miyakejima
    Distance: 100 km ·Stratovolcano ·Elevation: 775 m ·Last eruption: 2010 ·Japan

Chiba Prefecture

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 34 Catalogue entries

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

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