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M5.6 Depth: 10.0 km

M5.6 Earthquake near Nusa Tenggara Timur (Indonesia)

UTC time: 2026-04-21 03:17:01 UTC Local time: —

About this earthquake

A magnitude M5.6 earthquake was recorded near Nusa Tenggara Timur (Indonesia) on April 21, 2026 at 03:17 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size can cause damage near the epicenter.

The data is provided by RESIF and cross-checked across seismological networks. Indonesia: 138 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

Map

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 (49.7 km)
Regional average: 49.7 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

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Kefamenanu81.9 kmSE48'202
Kupang146.7 kmS474'801
Makassar652.4 kmNW1'474'393

GeoNames · CC BY 4.0

Volcanoes nearby

  • Sirung
    Distance: 48 km ·Complex ·Elevation: 1'347 m ·Last eruption: 2021 ·Indonesia
  • Iliwerung
    Distance: 60 km ·Complex ·Elevation: 583 m ·Last eruption: 2021 ·Indonesia
  • Ililabalekan
    Distance: 76 km ·Stratovolcano ·Elevation: 1'018 m ·Indonesia
  • Lewotolok
    Distance: 87 km ·Stratovolcano ·Elevation: 1'431 m ·Last eruption: 2026 ·Indonesia
  • Iliboleng
    Distance: 101 km ·Stratovolcano ·Elevation: 1'659 m ·Last eruption: 1993 ·Indonesia
  • Tara, Batu
    Distance: 131 km ·Stratovolcano ·Elevation: 633 m ·Last eruption: 2015 ·Indonesia

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours11
First 24 hours13
First 72 hours17
Strongest subsequent eventM5.5
M5.42026-04-21 03:17:07 UTC12.4 kmNusa Tenggara Timur M5.52026-04-21 03:17:07 UTC22.0 kmNusa Tenggara Timur M4.42026-04-21 03:19:20 UTC31.4 kmOé-Cussi-Ambeno M3.12026-04-21 03:22:01 UTC48.0 kmPante-Macassar M2.82026-04-21 03:24:47 UTC29.6 km M2.72026-04-21 03:25:49 UTC33.7 kmOé-Cussi-Ambeno M2.52026-04-21 03:48:18 UTC28.1 km M2.62026-04-21 04:18:30 UTC106.7 kmWatohari M3.22026-04-21 04:26:22 UTC135.9 kmHeda M3.22026-04-21 04:56:04 UTC26.7 kmOé-Cussi-Ambeno M2.52026-04-21 08:53:47 UTC22.5 km M2.52026-04-21 10:32:20 UTC73.5 km

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#4
Earlier events M≥486
Earlier events M≥514
Compared since2025-01-04

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.22025-10-26 17:04:27 UTC19.8 kmTimor Region M6.22025-10-26 17:04:26 UTC4.6 km59 km NW of Pante Makasar, Timor Leste M6.22025-10-26 17:04:25 UTC27.2 kmIndonesia [Sea] M5.32025-10-24 04:46:35 UTC28.1 kmFlores Region, Indonesia M5.22026-04-20 05:19:36 UTC110.1 kmNusa Tenggara Timur

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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