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M4.1 Depth: 46.0 km

M4.1 Earthquake near Asahi, Chiba Prefecture (Japan)

UTC time: 2026-06-26 04:31:32 UTC Local time: —

About this earthquake

On June 26, 2026 at 04:31 UTC, a magnitude M4.1 earthquake occurred near Asahi, Chiba Prefecture (Japan). With a focal depth of about 46 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by EMSC and cross-checked across seismological networks. Japan: 13 earthquakes were recorded in the past 24 hours, the strongest reaching M5.9.

Details

Magnitude
M4.1
Depth
46.0 km
UTC time
2026-06-26 04:31:32 UTC
Local time
—
Country
Japan
State
Chiba Prefecture
City
Asahi
Source
emsc
Coordinates
35.65620, 140.77330
Temperature
24.1°C

Map

Depth profile

Depth profile Depth: 46 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 46 km
Shallow
46 km
46 km — deeper than the regional average (35.4 km)
Regional average: 35.4 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

  • Izu-Oshima
    Distance: 163 km ·Stratovolcano ·Elevation: 746 m ·Last eruption: 1990 ·Japan
  • Takaharayama
    Distance: 165 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Hakoneyama
    Distance: 166 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan
  • Nantaisan
    Distance: 169 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Omanago Group
    Distance: 173 km ·Lava dome(s) ·Elevation: 2'341 m ·Last eruption: -3050 ·Japan
  • Izu-Tobu
    Distance: 174 km ·Pyroclastic cone(s) ·Elevation: 1'406 m ·Last eruption: 1989 ·Japan

Historic earthquake map · Japan

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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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