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M3.1 Depth: 187.0 km

M3.1 Earthquake near Kecamatan Umalulu, Nusa Tenggara Timur (Indonesia)

UTC time: 2026-02-28 01:55:33 UTC Local time: —

About this earthquake

On February 28, 2026 at 01:55 UTC, a magnitude M3.1 earthquake occurred near Kecamatan Umalulu, Nusa Tenggara Timur (Indonesia). At around 187 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC. Indonesia: 81 earthquakes were recorded in the past 24 hours, the strongest reaching M4.6.

Map

Depth profile

Depth profile Depth: 187 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 187 km
Intermediate
187 km
187 km — deeper than the regional average (49.6 km)
Regional average: 49.6 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Inierie
    Distance: 82 km ·Stratovolcano ·Elevation: 2'245 m ·Last eruption: -8050 ·Indonesia
  • Ebulobo
    Distance: 99 km ·Stratovolcano ·Elevation: 2'096 m ·Last eruption: 1969 ·Indonesia
  • Inielika
    Distance: 99 km ·Complex ·Elevation: 1'559 m ·Last eruption: 2001 ·Indonesia
  • Ranakah
    Distance: 109 km ·Lava dome(s) ·Elevation: 2'288 m ·Last eruption: 1991 ·Indonesia
  • Iya
    Distance: 125 km ·Stratovolcano ·Elevation: 618 m ·Last eruption: 1969 ·Indonesia
  • Sano, Wai
    Distance: 125 km ·Caldera ·Elevation: 1'319 m ·Indonesia

Historic earthquake map · Indonesia

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Country statistics · Indonesia

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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