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Indonesia · East Nusa Tenggara

M5.5 Earthquake near KABUPATEN MANGGARAI, East Nusa Tenggara (Indonesia)

UTC time: 2026-08-31 08:03:28 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M5.5
Depth
10.0 km
Source
USGS

East Nusa Tenggara · KABUPATEN MANGGARAI

Country overview

Map

M5.5 Earthquake near KABUPATEN MANGGARAI, East Nusa Tenggara (Indonesia) · 2026-08-31 — Map showing the location of the epicenter
M5.5 Earthquake near KABUPATEN MANGGARAI, East Nusa Tenggara (Indonesia) · 2026-08-31 — Map showing the location of the epicenter

About this earthquake

On August 31, 2026 at 08:03 UTC, a magnitude M5.5 earthquake occurred near KABUPATEN MANGGARAI, East Nusa Tenggara (Indonesia). 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 event was recorded by USGS. Indonesia: 20 earthquakes were recorded in the past 24 hours, the strongest reaching M4.3.

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 (43.4 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

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 1'000'722
V 48'571
VI 6'887

≈ 6'887 people experienced strong to very strong shaking.

Ground shaking

VI
Strong · Intensity (MMI) VI
Strongly felt, light building damage possible.

Tectonic context

Located on the Timor Plate.
Near the boundary Sunda ↔ Timor · about 5 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Ruteng44.3 kmS41'533
Labuan Bajo84.6 kmW188'724
Makassar367.7 kmN1'474'393

GeoNames · CC BY 4.0

Volcanoes nearby

  • Ranakah Activity reported
    Distance: 45 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Inielika
    Distance: 68 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Inierie
    Distance: 80 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Sano, Wai
    Distance: 86 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Ebulobo
    Distance: 90 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Paluweh
    Distance: 121 km ·Stratovolcano ·Elevation: 875 m ·Last eruption: 2013 ·Indonesia

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Frans Sales Lega AirportIndonesia · RTG · WATG
    42.1 kmStraight-line distance
  • Komodo AirportIndonesia · LBJ · WATO
    83.9 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

Subsequent earthquakes nearby

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

First 6 hours10
First 24 hours35
First 72 hours117
Strongest subsequent eventM5.5
M3.82026-08-31 08:15:13 UTC14.6 kmKABUPATEN MANGGARAI M2.92026-08-31 08:22:44 UTC4.2 kmKABUPATEN MANGGARAI M3.72026-08-31 08:28:35 UTC12.6 kmKABUPATEN MANGGARAI M3.12026-08-31 08:52:52 UTC24.6 kmEast Nusa Tenggara M2.62026-08-31 09:29:52 UTC3.3 kmManggarai Timur M3.02026-08-31 09:37:31 UTC2.6 kmKABUPATEN MANGGARAI M3.02026-08-31 10:02:38 UTC10.1 kmKABUPATEN MANGGARAI M3.72026-08-31 10:51:14 UTC4.6 kmKABUPATEN MANGGARAI M4.02026-08-31 12:01:16 UTC96.7 kmEast Nusa Tenggara M2.92026-08-31 13:21:36 UTC9.3 kmKABUPATEN MANGGARAI M2.82026-08-31 14:07:52 UTC48.2 kmKabupaten Manggarai Barat M3.42026-08-31 14:17:20 UTC9.1 kmKABUPATEN MANGGARAI

Comparison of seismic sources

6 sources currently report magnitudes from M5.0 to M5.6.

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

SourceMagnitudeDepthPosition difference
USGSM5.510.0 km0.0 km
GFZM5.210.0 km3.5 km
INGVM5.614.8 km12.9 km
RESIFM5.010.0 km26.8 km
EMSCM5.235.0 km6.9 km
ISCM5.339.0 km3.6 km

East Nusa Tenggara

Context for this earthquake

29 Sep 2025 – 29 Sep 2026 · M ≥ 3.0 · 1,788 Catalogue entries

Of 1,787 other entries for this area and period, 5 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#11
Earlier events M≥4382
Earlier events M≥555
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 UTC83.4 kmEast Nusa Tenggara M6.32026-08-14 22:13:59 UTC98.8 kmSouth Sulawesi M6.22026-08-14 22:13:51 UTC42.2 kmKabupaten Manggarai Barat M6.12026-08-19 22:45:20 UTC6.4 kmKABUPATEN MANGGARAI M5.92026-08-20 02:47:01 UTC18.2 kmNanga Baras

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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