Back to map
Indonesia

M4.2 Earthquake near SUMBA REGION, INDONESIA (Indonesia)

UTC time: 2025-10-21 07:10:35 UTC Local time: —

Map

About this earthquake

On October 21, 2025 at 07:10 UTC, a magnitude M4.2 earthquake occurred near SUMBA REGION, INDONESIA (Indonesia). With a focal depth of about 36 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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. Indonesia: over the past 24 hours, QuakeMap24 logged 23 earthquakes, the strongest at M4.3.

Details

ID
34c5bf61c08a9156d8d63f12099c2481a609f5bc
Magnitude
M4.2
Depth
36.0 km
UTC time
2025-10-21 07:10:35 UTC
Local time
—
Country
Indonesia
City
Nusa Tenggara Timur
Source
emsc
Coordinates
-9.46000, 120.08000
Temperature
27.5°C

Depth profile

Depth profile Depth: 36 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 36 km
Shallow
36 km
36 km — close to the regional average (43.4 km)
Regional average: 43.4 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

  • Sano, Wai
    Distance: 81 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Ranakah Activity reported
    Distance: 104 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Inierie
    Distance: 116 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Inielika
    Distance: 128 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Ebulobo
    Distance: 141 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Sangeang Api
    Distance: 179 km ·Complex ·Elevation: 1'912 m ·Last eruption: 2022 ·Indonesia

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Umbu Mehang Kunda AirportIndonesia · WGP · WATU
    33.7 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-29

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Nusa Tenggara Timur

Context for this earthquake

29 Sep 2025 – 29 Sep 2026 · M ≥ 3.0 · 348 Catalogue entries

Of 347 other entries for this area and period, 35 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Indonesia

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Indonesia

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

Share