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Indonesia

M3.5 Earthquake near SUMBA REGION, INDONESIA (Indonesia)

UTC time: 2025-10-21 17:44:52 UTC Local time: —

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About this earthquake

A magnitude M3.5 earthquake was recorded near SUMBA REGION, INDONESIA (Indonesia) on October 21, 2025 at 17:44 UTC. The hypocenter lay relatively close to the surface at around 28 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC. Indonesia: 23 earthquakes were recorded in the past 24 hours, the strongest reaching M4.3.

Details

ID
b2332cf19a0e2f7799cc5b2b6cb885f3579740e3
Magnitude
M3.5
Depth
28.0 km
UTC time
2025-10-21 17:44:52 UTC
Local time
—
Country
Indonesia
City
Nusa Tenggara Timur
Source
emsc
Coordinates
-9.69000, 120.96000
Temperature
28.5°C

Depth profile

Depth profile Depth: 28 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 28 km
Shallow
28 km
28 km — shallower than 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

  • Inierie
    Distance: 91 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Ebulobo
    Distance: 100 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Inielika
    Distance: 107 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Iya
    Distance: 116 km ·Stratovolcano ·Elevation: 618 m ·Last eruption: 1969 ·Indonesia
  • Ranakah Activity reported
    Distance: 126 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Kelimutu
    Distance: 139 km ·Complex ·Elevation: 1'639 m ·Last eruption: 1968 ·Indonesia

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, 107 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Indonesia

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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 · Indonesia

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

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