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Japan · Okinawa Prefecture

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

UTC time: 2026-08-12 12:03:30 UTC Local time: —
Magnitude
M3.4
Depth
30.0 km
Source
EMSC

Okinawa Prefecture · Miyakojima

Country overview

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About this earthquake

On August 12, 2026 at 12:03 UTC, a magnitude M3.4 earthquake occurred near Miyakojima, Okinawa Prefecture (Japan). With a focal depth of about 30 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: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M3.6.

Details

ID
264ba6d11f81691620d786b1a359d8c473d2d78d
Magnitude
M3.4
Depth
30.0 km
UTC time
2026-08-12 12:03:30 UTC
Local time
—
Country
Japan
State
Okinawa Prefecture
City
Miyakojima
Source
emsc
Coordinates
24.60000, 125.40000
Temperature
28.8°C

Depth profile

Depth profile Depth: 30 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 30 km
Shallow
30 km
30 km — close to 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

  • Submarine Volcano NNE of Iriomotejima
    Distance: 149 km ·Stratovolcano ·Elevation: -200 m ·Last eruption: 1924 ·Japan
  • Kueishantao
    Distance: 349 km ·Stratovolcano ·Elevation: 361 m ·Last eruption: 1853 ·Taiwan
  • Tatun Volcanic Group
    Distance: 393 km ·Lava dome(s) ·Elevation: 1'120 m ·Last eruption: 648 ·Taiwan
  • Io-Torishima
    Distance: 461 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
    22.9 kmStraight-line distance
  • Shimojishima AirportJapan · SHI · RORS
    36.0 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

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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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