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M4.9 Earthquake near SOUTHWESTERN RYUKYU ISL., JAPAN

UTC time: 2025-09-28 21:23:51 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.9
Depth
50.0 km
Source
EMSC

SOUTHWESTERN RYUKYU ISL., JAPAN

Map

About this earthquake

On September 28, 2025 at 21:23 UTC, a magnitude M4.9 earthquake occurred near SOUTHWESTERN RYUKYU ISL., JAPAN. The hypocenter lay relatively close to the surface at around 50 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by EMSC and cross-checked across seismological networks.

Details

ID
2d14e5637826b5d849a98fcb80066d15a329e5b8
Magnitude
M4.9
Depth
50.0 km
UTC time
2025-09-28 21:23:51 UTC
Local time
—
Country
—
Source
emsc
Coordinates
24.67000, 123.23000
Temperature
28.1°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
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: 72 km ·Stratovolcano ·Elevation: -200 m ·Last eruption: 1924 ·Japan
  • Kueishantao
    Distance: 130 km ·Stratovolcano ·Elevation: 361 m ·Last eruption: 1853 ·Taiwan
  • Tatun Volcanic Group
    Distance: 178 km ·Lava dome(s) ·Elevation: 1'120 m ·Last eruption: 648 ·Taiwan
  • Iraya
    Distance: 484 km ·Stratovolcano ·Elevation: 1'009 m ·Last eruption: 1454 ·Philippines

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Yonaguni AirportJapan · OGN · ROYN
    33.9 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

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Stats (last 24h)

Global (24h)
614
Country (24h)
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