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M4.9 Earthquake near SOUTHWESTERN RYUKYU ISL., JAPAN

UTC time: 2026-02-28 21:39:28 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
10.0 km
Source
EMSC

SOUTHWESTERN RYUKYU ISL., JAPAN

Map

About this earthquake

On February 28, 2026 at 21:39 UTC, a magnitude M4.9 earthquake occurred near SOUTHWESTERN RYUKYU ISL., JAPAN. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by EMSC.

Details

ID
ed224bee25b1fee092e680429b3ef1378a15c790
Magnitude
M4.9
Depth
10.0 km
UTC time
2026-02-28 21:39:28 UTC
Local time
—
Country
—
Source
emsc
Coordinates
25.14850, 125.01960
Temperature
22.5°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
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: 127 km ·Stratovolcano ·Elevation: -200 m ·Last eruption: 1924 ·Japan
  • Kueishantao
    Distance: 311 km ·Stratovolcano ·Elevation: 361 m ·Last eruption: 1853 ·Taiwan
  • Tatun Volcanic Group
    Distance: 349 km ·Lava dome(s) ·Elevation: 1'120 m ·Last eruption: 648 ·Taiwan
  • Io-Torishima
    Distance: 440 km ·Complex ·Elevation: 212 m ·Last eruption: 1968 ·Japan

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Shimojishima AirportJapan · SHI · RORS
    37.9 kmStraight-line distance
  • Miyako AirportJapan · MMY · ROMY
    49.2 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)
684
Country (24h)
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