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M3.7 Depth: 50.0 km

M3.7 Earthquake near Isumi, Chiba Prefecture (Japan)

UTC time: 2026-06-18 18:44:30 UTC Local time: —

About this earthquake

A magnitude M3.7 earthquake was recorded near Isumi, Chiba Prefecture (Japan) on June 18, 2026 at 18:44 UTC. With a focal depth of about 50 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC. Japan: over the past 24 hours, QuakeMap24 logged 2 earthquakes, the strongest at M3.7.

Details

Magnitude
M3.7
Depth
50.0 km
UTC time
2026-06-18 18:44:30 UTC
Local time
—
Country
Japan
State
Chiba Prefecture
City
Isumi
Source
emsc
Coordinates
35.20000, 140.50000
Temperature
21.4°C

Map

Depth profile

Depth profile Depth: 50 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 50 km
Shallow
50 km
50 km — deeper than the regional average (34.4 km)
Regional average: 34.4 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: 114 km ·Stratovolcano ·Elevation: 746 m ·Last eruption: 1990 ·Japan
  • Izu-Tobu
    Distance: 132 km ·Pyroclastic cone(s) ·Elevation: 1'406 m ·Last eruption: 1989 ·Japan
  • Hakoneyama
    Distance: 134 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan
  • Toshima
    Distance: 135 km ·Stratovolcano ·Elevation: 508 m ·Last eruption: -4550 ·Japan
  • Niijima
    Distance: 143 km ·Lava dome(s) ·Elevation: 432 m ·Last eruption: 886 ·Japan
  • Miyakejima
    Distance: 152 km ·Stratovolcano ·Elevation: 775 m ·Last eruption: 2010 ·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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