M2.8 Depth: 37.0 km

M2.8 Earthquake near Kecamatan Umbu ratunggai Barat, East Nusa Tenggara (Indonesia)

UTC time: 2026-07-31 08:25:47 UTC Local time:

About this earthquake

A magnitude M2.8 earthquake was recorded near Kecamatan Umbu ratunggai Barat, East Nusa Tenggara (Indonesia) on July 31, 2026 at 08:25 UTC. The hypocenter lay relatively close to the surface at around 37 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by EMSC and cross-checked across seismological networks. Indonesia: over the past 24 hours, QuakeMap24 logged 56 earthquakes, the strongest at M4.6.

Map

Depth profile

Depth profile Depth: 37 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 37 km
Shallow
37 km
37 km — shallower than the regional average (49.4 km)
Regional average: 49.4 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

Volcanoes nearby

  • Sano, Wai
    Distance: 81 km ·Caldera ·Elevation: 1'319 m ·Indonesia
  • Sangeang Api
    Distance: 118 km ·Complex ·Elevation: 1'912 m ·Last eruption: 2022 ·Indonesia
  • Ranakah
    Distance: 135 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Inierie
    Distance: 170 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Inielika
    Distance: 177 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Tambora
    Distance: 190 km ·Stratovolcano ·Elevation: 2'850 m ·Last eruption: 1967 ·Indonesia

Historic earthquake map · Indonesia

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Country statistics · Indonesia

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