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Japan · Okinawa Prefecture

M3.4 Earthquake near Miyakojima, Okinawa Prefecture (Japan)

UTC time: 2026-09-09 17:11:30 UTC Local time: —
Magnitude
M3.4
Depth
40.0 km
Source
EMSC

Okinawa Prefecture · Miyakojima

Country overview

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About this earthquake

On September 9, 2026 at 17:11 UTC, a magnitude M3.4 earthquake occurred near Miyakojima, Okinawa Prefecture (Japan). The hypocenter lay relatively close to the surface at around 40 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC.

Details

ID
e2bc41f9a08072986e741045e1fcbb3a66f477b8
Magnitude
M3.4
Depth
40.0 km
UTC time
2026-09-09 17:11:30 UTC
Local time
—
Country
Japan
State
Okinawa Prefecture
City
Miyakojima
Source
emsc
Coordinates
24.90000, 125.40000
Temperature
28.0°C

Depth profile

Depth profile Depth: 40 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40 km
Shallow
40 km
40 km — deeper 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

  • Submarine Volcano NNE of Iriomotejima
    Distance: 153 km ·Stratovolcano ·Elevation: -200 m ·Last eruption: 1924 ·Japan
  • Kueishantao
    Distance: 348 km ·Stratovolcano ·Elevation: 361 m ·Last eruption: 1853 ·Taiwan
  • Tatun Volcanic Group
    Distance: 389 km ·Lava dome(s) ·Elevation: 1'120 m ·Last eruption: 648 ·Taiwan
  • Io-Torishima
    Distance: 435 km ·Complex ·Elevation: 212 m ·Last eruption: 1968 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Miyako AirportJapan · MMY · ROMY
    16.8 kmStraight-line distance
  • Shimojishima AirportJapan · SHI · RORS
    27.0 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-20

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

20 Sep 2025 – 20 Sep 2026 · M ≥ 3.0 · 951 Catalogue entries

Of 950 other entries for this area and period, 526 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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Country statistics · Japan

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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