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M5.9 Depth: 10.0 km

M5.9 Earthquake near Nanga Baras, East Nusa Tenggara (Indonesia)

UTC time: 2026-08-20 02:47:01 UTC Local time: —
M5.9 earthquake near Nanga Baras on Aug 20, 2026 — map of epicenter and shaking intensity | QuakeMap24
M5.9 Earthquake near Nanga Baras, East Nusa Tenggara (Indonesia) · 2026-08-20 02:47:01 UTC

About this earthquake

On August 20, 2026 at 02:47 UTC, a magnitude M5.9 earthquake occurred near Nanga Baras, East Nusa Tenggara (Indonesia). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by EMSC. Indonesia: over the past 24 hours, QuakeMap24 logged 369 earthquakes, the strongest at M6.1.

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 (45.2 km)
Regional average: 45.2 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

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 1'001'049
V 172'099
VI 45'610

≈ 46'364 people experienced strong to very strong shaking.

1 Felt reports · max reported intensity 2

Ground shaking

VII
Very strong · Intensity (MMI) VII
Moderate damage possible.

Tectonic context

Located on the Timor Plate.
Near the boundary Sunda ↔ Timor · about 12 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Ruteng34.4 kmSW41'533
Labuan Bajo87.9 kmW188'724
Makassar385.4 kmN1'474'393

GeoNames · CC BY 4.0

Volcanoes nearby

  • Ranakah
    Distance: 32 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Inielika
    Distance: 51 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Inierie
    Distance: 62 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Ebulobo
    Distance: 74 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Sano, Wai
    Distance: 83 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Paluweh
    Distance: 113 km ·Stratovolcano ·Elevation: 875 m ·Last eruption: 2013 ·Indonesia

Subsequent earthquakes nearby

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

First 6 hours13
First 24 hours13
First 72 hours13
Strongest subsequent eventM3.8
M3.82026-08-20 02:51:01 UTC18.4 kmKABUPATEN MANGGARAI M3.02026-08-20 02:52:58 UTC10.0 kmGolo Nimbung M3.62026-08-20 02:58:30 UTC18.4 kmKABUPATEN MANGGARAI M3.52026-08-20 03:08:41 UTC24.9 kmKABUPATEN MANGGARAI M2.82026-08-20 03:10:53 UTC12.0 kmKABUPATEN MANGGARAI M2.72026-08-20 03:13:41 UTC22.0 kmKABUPATEN MANGGARAI M2.72026-08-20 03:18:59 UTC32.3 kmLanggo M3.52026-08-20 03:20:44 UTC18.9 kmKABUPATEN MANGGARAI M3.72026-08-20 03:26:57 UTC20.4 kmKABUPATEN MANGGARAI M2.82026-08-20 03:29:14 UTC12.5 kmSatar Padut M2.82026-08-20 03:33:48 UTC18.6 kmNampar Tabang M3.72026-08-20 03:39:57 UTC99.1 kmEast Nusa Tenggara

Comparison of seismic sources

4 sources currently report magnitudes from M5.3 to M5.9.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
INGVM5.88.6 km18.8 km
RESIFM5.310.0 km15.5 km
EMSCM5.910.0 km0.0 km
GFZM5.910.0 km0.5 km

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#5
Earlier events M≥4265
Earlier events M≥539
Compared since2025-01-07

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

Strongest earlier events

M7.72026-08-14 21:58:24 UTC74.7 kmEast Nusa Tenggara M6.32026-08-14 22:13:59 UTC112.3 kmSouth Sulawesi M6.22026-08-14 22:13:51 UTC53.1 kmKabupaten Manggarai Barat M6.12026-08-19 22:45:20 UTC14.3 kmKABUPATEN MANGGARAI M5.92026-08-19 16:17:45 UTC23.4 kmKABUPATEN MANGGARAI

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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