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M5.9 Depth: 55.9 km

M5.9 Earthquake near Choshi, Chiba Prefecture (Japan)

UTC time: 2026-06-26 03:46:36 UTC Local time: —

About this earthquake

A magnitude M5.9 earthquake was recorded near Choshi, Chiba Prefecture (Japan) on June 26, 2026 at 03:46 UTC. The hypocenter lay relatively close to the surface at around 56 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The data is provided by INGV and cross-checked across seismological networks. Japan: over the past 24 hours, QuakeMap24 logged 13 earthquakes, the strongest at M5.9.

Details

Magnitude
M5.9
Depth
55.9 km
UTC time
2026-06-26 03:46:36 UTC
Local time
—
Country
Japan
State
Chiba Prefecture
City
Choshi
Source
ingv
Coordinates
35.55350, 140.86700
Temperature
23.9°C

Map

Depth profile

Depth profile Depth: 55.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 55.9 km
Shallow
55.9 km
55.9 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

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 37'244'608
V 87'953
40 Felt reports · max reported intensity 4.3

Ground shaking

V
Moderate · Intensity (MMI) V
Felt by all, slight damage possible.

Tectonic context

Located on the Okhotsk Plate.
Near the boundary Okhotsk ↔ Philippine Sea · about 109 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Hasaki20.2 kmN39'209
Narita55.9 kmNW132'906
Chiba68.1 kmW979'768

GeoNames · CC BY 4.0

Volcanoes nearby

  • Izu-Oshima
    Distance: 163 km ·Stratovolcano ·Elevation: 746 m ·Last eruption: 1990 ·Japan
  • Hakoneyama
    Distance: 171 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan
  • Izu-Tobu
    Distance: 176 km ·Pyroclastic cone(s) ·Elevation: 1'406 m ·Last eruption: 1989 ·Japan
  • Takaharayama
    Distance: 179 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Nantaisan
    Distance: 183 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Toshima
    Distance: 185 km ·Stratovolcano ·Elevation: 508 m ·Last eruption: -4550 ·Japan

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#1
Earlier events M≥4117
Earlier events M≥530
Compared since2025-01-04

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.62026-06-16 10:46:27 UTC112.8 kmNoda M5.62026-06-16 10:46:27 UTC84.3 kmNear East Coast of Honshu, Japan M5.52026-06-16 10:46:28 UTC110.1 kmSugito M5.52026-06-16 10:46:35 UTC104.4 kmNoda M5.52026-06-16 10:46:33 UTC109.8 kmSakai

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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