Back to map
Indonesia · East Nusa Tenggara

M4.0 Earthquake near Kecamatan Umbu ratunggai Barat, East Nusa Tenggara (Indonesia)

UTC time: 2026-08-15 03:37:57 UTC Local time: —
Magnitude
M4.0
Depth
7.0 km
Source
EMSC

East Nusa Tenggara · Kecamatan Umbu ratunggai Barat

Country overview

Map

About this earthquake

A magnitude M4.0 earthquake was recorded near Kecamatan Umbu ratunggai Barat, East Nusa Tenggara (Indonesia) on August 15, 2026 at 03:37 UTC. The hypocenter lay relatively close to the surface at around 7 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by EMSC and cross-checked across seismological networks. Indonesia: 42 earthquakes were recorded in the past 24 hours, the strongest reaching M4.4.

Depth profile

Depth profile Depth: 7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7 km
Shallow
7 km
7 km — shallower than the regional average (43.7 km)
Regional average: 43.7 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

Volcanoes nearby

  • Sano, Wai
    Distance: 54 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Ranakah Activity reported
    Distance: 105 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Sangeang Api
    Distance: 124 km ·Complex ·Elevation: 1'912 m ·Last eruption: 2022 ·Indonesia
  • Inierie
    Distance: 139 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Inielika
    Distance: 146 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Ebulobo
    Distance: 166 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia

East Nusa Tenggara

Context for this earthquake

11 Sep 2025 – 11 Sep 2026 · M ≥ 3.0 · 1,625 Catalogue entries

Of 1,624 other entries for this area and period, 228 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

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.

Share