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Japan · Tokushima Prefecture

M3.9 Earthquake near Anan, Tokushima Prefecture (Japan)

UTC time: 2026-06-30 01:29:30 UTC Local time: —

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About this earthquake

A magnitude M3.9 earthquake was recorded near Anan, Tokushima Prefecture (Japan) on June 30, 2026 at 01:29 UTC. The hypocenter lay relatively close to the surface at around 50 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Japan: over the past 24 hours, QuakeMap24 logged 2 earthquakes, the strongest at M3.6.

Details

ID
078f2786160344d9b01dee4640753c361c61df74
Magnitude
M3.9
Depth
50.0 km
UTC time
2026-06-30 01:29:30 UTC
Local time
—
Country
Japan
State
Tokushima Prefecture
City
Anan
Source
emsc
Coordinates
33.90000, 134.90000
Temperature
23.7°C

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 (33.7 km)
Regional average: 33.7 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

  • Sanbesan
    Distance: 250 km ·Stratovolcano ·Elevation: 1'126 m ·Last eruption: 650 ·Japan
  • Hakusan
    Distance: 303 km ·Stratovolcano ·Elevation: 2'702 m ·Last eruption: 1659 ·Japan
  • Abu
    Distance: 318 km ·Volcanic field ·Elevation: 641 m ·Last eruption: -6850 ·Japan
  • Ontakesan
    Distance: 323 km ·Complex ·Elevation: 3'067 m ·Last eruption: 2014 ·Japan
  • Yufu-Tsurumi
    Distance: 332 km ·Lava dome(s) ·Last eruption: 867 ·Japan
  • Norikuradake
    Distance: 344 km ·Stratovolcano(es) ·Elevation: 3'026 m ·Last eruption: -50 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Tokushima Awaodori Airport / JMSDF Tokushima Air BaseJapan · TKS · RJOS
    37.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Japan

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 968 Catalogue entries

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

Open seismic profile

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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