International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis

Earthquake Report
Base data
Event ID 1584491
Event time 2026-02-28 04:45:23 (UTC)
Local time 2026-02-27 20:45:23 - [It was evening in the affected area.]
Last update 2026-02-28 04:56:22 (UTC)
Magnitude 2.7
Depth 10 km
Class Micro
Hypocenter Shallow depth
Mercalli scale 1
Possible effects People do not feel any Earth movement.
Data status
Data provider EMSC

Location
Continent Indonesian Archipelago
Country Indonesia
Administration area Nusa Tenggara Barat
Nearest settlement Pototano
Distance 66 km
Course NNW
Surface type underwater quake
Tsunami region South Pacific
Water surface name Flores Sea

Overview map
Green circle [feel the Eq] 10 km, Orange circle 25 km, Yellow circle 75 km

Population map
Green circle [feel the seism activity] 10 km, Orange circle 25 km, Yellow circle 75 km

Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
There is no known marine port nearby.
Nearest airports
Sumbawa Besar Airport (72,22 km), Sumbawa Besar Airport (72,22 km)
Nearest volcanoes
There is no known volcanoes nearby.
Quick Analysis
Due to the small magnitude of the earthquake and the moderate depth of the hypocenter, minimal damage is conceivable.According to the epicenter of the quake, this is an underwater quake.