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Japan · Kagoshima Prefecture

M3.4 Earthquake near Isen, Kagoshima Prefecture (Japan)

UTC time: 2026-09-22 09:49:30 UTC Local time: —

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About this earthquake

A magnitude M3.4 earthquake was recorded near Isen, Kagoshima Prefecture (Japan) on September 22, 2026 at 09:49 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC. Japan: over the past 24 hours, QuakeMap24 logged 4 earthquakes, the strongest at M5.0.

Details

ID
27e3da486108e43d88321d36a01a3c8dba7c3af6
Magnitude
M3.4
Depth
10.0 km
UTC time
2026-09-22 09:49:30 UTC
Local time
—
Country
Japan
State
Kagoshima Prefecture
City
Isen
County
Oshima County
Source
emsc
Coordinates
27.60000, 128.90000
Temperature
27.7°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (33.1 km)
Regional average: 33.1 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

  • Io-Torishima
    Distance: 74 km ·Complex ·Elevation: 212 m ·Last eruption: 1968 ·Japan
  • Yokoatejima
    Distance: 134 km ·Stratovolcano(es) ·Elevation: 495 m ·Last eruption: 1835 ·Japan
  • Akusekijima
    Distance: 218 km ·Stratovolcano(es) ·Elevation: 555 m ·Japan
  • Suwanosejima
    Distance: 240 km ·Stratovolcano(es) ·Elevation: 796 m ·Last eruption: 2026 ·Japan
  • Nakanoshima
    Distance: 268 km ·Stratovolcano(es) ·Elevation: 979 m ·Last eruption: 1914 ·Japan
  • Kuchinoshima
    Distance: 282 km ·Stratovolcano(es) ·Elevation: 628 m ·Last eruption: 1190 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Tokunoshima AirportJapan · TKN · RJKN
    26.3 kmStraight-line distance
  • Okinoerabu AirportJapan · OKE · RJKB
    26.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-22

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

22 Sep 2025 – 22 Sep 2026 · M ≥ 3.0 · 954 Catalogue entries

Of 953 other entries for this area and period, 527 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

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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