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Indonesia

M3.9 Earthquake near SUMBAWA REGION, INDONESIA (Indonesia)

UTC time: 2025-10-30 18:30:47 UTC Local time: —

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About this earthquake

A magnitude M3.9 earthquake was recorded near SUMBAWA REGION, INDONESIA (Indonesia) on October 30, 2025 at 18:30 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Indonesia: 50 earthquakes were recorded in the past 24 hours, the strongest reaching M4.8.

Details

ID
629b460c5358c060ac82c533d29679eee8a554f1
Magnitude
M3.9
Depth
10.0 km
UTC time
2025-10-30 18:30:47 UTC
Local time
—
Country
Indonesia
City
Nusa Tenggara Barat
Source
emsc
Coordinates
-8.74000, 118.77000
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
10 km — shallower than the regional average (43.3 km)
Regional average: 43.3 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

  • Sangeang Api
    Distance: 69 km ·Complex ·Elevation: 1'912 m ·Last eruption: 2022 ·Indonesia
  • Tambora
    Distance: 101 km ·Stratovolcano ·Elevation: 2'850 m ·Last eruption: 1967 ·Indonesia
  • Sano, Wai
    Distance: 136 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Ranakah Activity reported
    Distance: 194 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Inierie
    Distance: 240 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Inielika
    Distance: 243 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Sultan Muhammad Salahuddin AirportIndonesia · BMU · WADB
    24.4 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

Nusa Tenggara Barat

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 110 Catalogue entries

Of 109 other entries for this area and period, 14 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.

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