An earthquake of magnitude 4.5 occurred only 9 minutes ago 77 km north of Sumbawa Besar, Indonesia, Indonesia's Meteorology, Climatology, and Geophysical Agency reported.The quake hit at a shallow depth of 12. km beneath the epicenter near Sumbawa Besar, Sumbawa Regency, West Nusa Tenggara, Indonesia, early morning on Saturday, February 28th, 2026, at 3:21 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.5 as well.Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Pototano (pop. 5,000) located 69 km from the epicenter, and Sumbawa Besar (pop. 62,800) 77 km away.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.Earthquake data: Date & time: Feb 27, 2026 07:21 pm (Universal Time) local time (27 Feb 2026 19:21 GMT)Magnitude: 4.4Depth: 10.00 kmEpicenter latitude / longitude: 7.75°S / 117.37°E (Pangkajene Islands Regency, Provinsi Sulawesi Selatan, Indonesia)Primary data source: BMKG