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Indonesia · East Nusa Tenggara

M7.7 Earthquake near East Nusa Tenggara (Indonesia)

UTC time: 2026-08-14 21:58:22 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

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

Magnitude
M7.7
Depth
10.0 km
Source
USGS

East Nusa Tenggara · East Nusa Tenggara

Country overview

Map

M7.7 Earthquake near East Nusa Tenggara (Indonesia) · 2026-08-14 — Map showing the location of the epicenter
M7.7 Earthquake near East Nusa Tenggara (Indonesia) · 2026-08-14 — Map showing the location of the epicenter

About this earthquake

A magnitude M7.7 earthquake was recorded near East Nusa Tenggara (Indonesia) on August 14, 2026 at 21:58 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are major events and can cause severe damage over a wide area.

The data is provided by USGS and cross-checked across seismological networks. Indonesia: over the past 24 hours, QuakeMap24 logged 17 earthquakes, the strongest at M4.9.

Details

ID
ec4e316b2e1d87df77ee0919cb26a0de655ffbe0
Magnitude
M7.7
Depth
10.0 km
UTC time
2026-08-14 21:58:22 UTC
Local time
—
Country
Indonesia
State
East Nusa Tenggara
City
East Nusa Tenggara
Source
usgs
Coordinates
-8.31010, 121.35170
Temperature
23.6°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

Felt reports

71felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Aug 19, 2026, 9:27 PM UTC · Last checked: Sep 14, 2026, 12:07 AM UTC

Source: EMSC / LastQuake

Official USGS aftershock forecast

Probability of at least one aftershock at or above the specified magnitude during the entire stated time window. This does not predict an individual earthquake.

Issued: Nov 9, 2026, 5:08 PM UTC · Last checked: Nov 13, 2026, 11:07 PM UTC

Nov 9, 2026, 7:00 PM UTC – Nov 10, 2026, 7:00 PM UTC · Expired
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.099.84 %2–19
M ≥ 4.044.57 %0–3
M ≥ 5.04.18 %0–1
M ≥ 6.00.31 %0–0
M ≥ 7.00.03 %0–0
Nov 9, 2026, 7:00 PM UTC – Nov 16, 2026, 7:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.099.98 %32–120
M ≥ 4.097.43 %0–12
M ≥ 5.026.09 %0–2
M ≥ 6.02.37 %0–0
M ≥ 7.00.18 %0–0
Nov 9, 2026, 7:00 PM UTC – Dec 10, 2026, 7:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.099.98 %142–523
M ≥ 4.099.94 %7–41
M ≥ 5.069.88 %0–5
M ≥ 6.09.05 %0–1
M ≥ 7.00.70 %0–0
Nov 9, 2026, 7:00 PM UTC – Nov 10, 2027, 7:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.099.99 %797–4,156
M ≥ 4.099.99 %53–301
M ≥ 5.099.72 %2–24
M ≥ 6.042.64 %0–3
M ≥ 7.04.49 %0–1

The range is the 95% forecast interval for the number of earthquakes. Magnitude thresholds and time windows overlap: do not add the values. Windows already in progress still refer to the entire stated period.

Source: USGS — Operational Aftershock Forecast

Estimated impact

Orange Significant impact likely.
Estimated population exposed
IV 17'607'093
V 1'831'264
VI 536'348
VII 1'040'524
VIII 558'431
IX 26'301

≈ 2'161'604 people experienced strong to very strong shaking.

38 Felt reports · max reported intensity 7.9

Ground shaking

IX
Violent · Intensity (MMI) IX
Heavy damage likely.

Tectonic context

Located on the Timor Plate.
Near the boundary Banda Sea ↔ Timor · about 34 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Ende68.4 kmSE87'269
Labuan Bajo162.4 kmW188'724
Makassar410.5 kmNW1'474'393

GeoNames · CC BY 4.0

Volcanoes nearby

  • Paluweh
    Distance: 39 km ·Stratovolcano ·Elevation: 875 m ·Last eruption: 2013 ·Indonesia
  • Ebulobo
    Distance: 59 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Inielika
    Distance: 62 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Iya
    Distance: 72 km ·Stratovolcano ·Elevation: 618 m ·Last eruption: 1969 ·Indonesia
  • Kelimutu
    Distance: 73 km ·Complex ·Elevation: 1'639 m ·Last eruption: 1968 ·Indonesia
  • Inierie
    Distance: 77 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • H. Hasan Aroeboesman (Ende) AirportIndonesia · ENE · WATE
    68.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-13

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 500 km. They are not automatically classified as aftershocks.

First 6 hours119
First 24 hours525
First 72 hours1549
Strongest subsequent eventM6.3
M6.32026-08-14 21:58:23 UTC25.0 kmEast Nusa Tenggara M5.92026-08-14 22:13:50 UTC132.6 kmKabupaten Manggarai Barat M6.32026-08-14 22:13:59 UTC112.5 kmSouth Sulawesi M5.62026-08-14 22:18:06 UTC9.1 kmEast Nusa Tenggara M6.12026-08-14 22:28:37 UTC24.2 kmEast Nusa Tenggara M5.52026-08-14 22:37:17 UTC128.8 kmKabupaten Manggarai Barat M4.12026-08-14 22:46:12 UTC117.9 kmKABUPATEN MANGGARAI M4.42026-08-14 22:47:21 UTC13.2 kmEast Nusa Tenggara M5.32026-08-14 22:53:12 UTC124.5 kmKabupaten Manggarai Barat M4.02026-08-14 23:03:45 UTC30.7 kmEast Nusa Tenggara M3.82026-08-14 23:05:18 UTC67.4 kmWaewea M4.22026-08-14 23:07:45 UTC94.5 kmKABUPATEN MANGGARAI

Comparison of seismic sources

7 sources currently report magnitudes from M6.9 to M7.7.

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

SourceMagnitudeDepthPosition difference
SCEDCM7.710.0 km0.0 km
USPM7.710.0 km39.8 km
USGSM7.710.0 km0.0 km
INGVM7.621.5 km10.2 km
SERBIA_RSZM7.510.0 km15.7 km
EMSCM7.720.0 km7.1 km
GFZM6.910.0 km30.5 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 500 km.

Magnitude rank#1
Earlier events M≥4425
Earlier events M≥571
Compared since2025-01-03

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 UTC287.4 kmTimor Region M6.22025-10-26 17:04:26 UTC292.5 km59 km NW of Pante Makasar, Timor Leste M6.22025-10-26 17:04:25 UTC292.6 km59 km NW of Pante Makasar, Timor Leste M6.22025-10-26 17:04:25 UTC278.6 kmIndonesia [Sea] M6.22026-05-05 06:44:47 UTC298.6 kmSumba region

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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