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Indonesia · East Nusa Tenggara

M5.0 Earthquake near Robek, East Nusa Tenggara (Indonesia)

UTC time: 2026-08-20 07:55:03 UTC Local time: —

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M5.0 Earthquake near Robek, East Nusa Tenggara (Indonesia) · 2026-08-20 — Map showing the location of the epicenter
M5.0 Earthquake near Robek, East Nusa Tenggara (Indonesia) · 2026-08-20 — Map showing the location of the epicenter

About this earthquake

On August 20, 2026 at 07:55 UTC, a magnitude M5.0 earthquake occurred near Robek, East Nusa Tenggara (Indonesia). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by USGS. Indonesia: 26 earthquakes were recorded in the past 24 hours, the strongest reaching M4.8.

Details

ID
2e2355954b4066b44b5183fff987c919d219d648
Magnitude
M5.0
Depth
10.0 km
UTC time
2026-08-20 07:55:03 UTC
Local time
—
Country
Indonesia
State
East Nusa Tenggara
City
Robek
County
Manggarai
Village
Robek
Source
usgs
Coordinates
-8.28680, 120.37700
Temperature
19.0°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

Nearby population centers

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

PlaceDistanceDirectionPopulation
Ruteng37.4 kmS41'533
Labuan Bajo58.7 kmSW188'724
Makassar364.2 kmN1'474'393

GeoNames · CC BY 4.0

Volcanoes nearby

  • Ranakah Activity reported
    Distance: 42 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Sano, Wai
    Distance: 64 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Inielika
    Distance: 83 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Inierie
    Distance: 91 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Ebulobo
    Distance: 107 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Sangeang Api
    Distance: 144 km ·Complex ·Elevation: 1'912 m ·Last eruption: 2022 ·Indonesia

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Frans Sales Lega AirportIndonesia · RTG · WATG
    36.2 kmStraight-line distance
  • Komodo AirportIndonesia · LBJ · WATO
    57.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-15

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 hours63
First 24 hours170
First 72 hours301
Strongest subsequent eventM5.6
M4.42026-08-20 08:00:33 UTC19.4 kmManggarai Timur M5.12026-08-20 08:01:35 UTC51.6 kmEast Nusa Tenggara M3.52026-08-20 08:04:08 UTC74.4 kmSouth Sulawesi M2.82026-08-20 08:07:23 UTC46.0 kmKABUPATEN MANGGARAI M2.92026-08-20 08:11:28 UTC23.4 kmSatar Padut M3.52026-08-20 08:13:30 UTC59.1 kmSouth Sulawesi M3.02026-08-20 08:17:13 UTC19.7 kmGolo Mangung M3.02026-08-20 08:18:53 UTC22.4 kmGolo Mangung M3.02026-08-20 08:23:31 UTC27.3 kmKABUPATEN MANGGARAI M3.62026-08-20 08:25:20 UTC31.2 kmKABUPATEN MANGGARAI M3.12026-08-20 08:29:50 UTC21.0 kmGolo Mangung M2.72026-08-20 08:30:52 UTC50.1 kmKABUPATEN MANGGARAI

Comparison of seismic sources

3 sources currently report magnitudes from M4.9 to M5.0.

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

SourceMagnitudeDepthPosition difference
EMSCM5.010.0 km0.0 km
USGSM5.010.0 km0.0 km
GFZM4.910.0 km26.8 km

East Nusa Tenggara

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 1,855 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#38
Earlier events M≥4323
Earlier events M≥553
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 UTC108.3 kmEast Nusa Tenggara M6.32026-08-14 21:58:23 UTC117.4 kmEast Nusa Tenggara M6.32026-08-14 22:13:59 UTC114.4 kmSouth Sulawesi M6.22026-08-14 22:28:40 UTC142.0 kmEkoae M6.22026-08-14 22:13:51 UTC18.3 kmKabupaten Manggarai Barat

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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