Information on the earthquake: moderate mag. 4.5 earthquake
Medium magnitude earthquake 4.5 to 10 km deep
15 Sep 19:05 UTC: First to report: BMKG after 4 minutes.
Sep 15 19:10: Magnitude recalculated from 4.4 to 4.5. Epicenter location corrected 1.1 km (0.7 mi) towards E.
Updated Wed Sep 15, 2021, 7:09 PM
Magnitude 4.4 earthquake strikes near Sumbawa Besar, ID.17 Sumbawa (undefined), West Nusa Tenggara, Indonesia
4.4 earthquake 16 sept 3:00 (GMT +8)
A second report was then published by the Euro-Mediterranean Seismological Center (EMSC), which also listed it as a magnitude 4.4 earthquake.
Based on preliminary seismic data, the quake should not have caused significant damage, but was likely felt by many as a slight vibration in the epicenter area.
Weak tremors could have been felt in Pototano (5,000 inhabitants) located 36 km from the epicenter and in Sumbawa Besar (52,700 inhabitants) 36 km away.
Other towns near the epicenter where the earthquake could have been felt as very weak tremors include Labuan Lombok (10,000 inhabitants) located 63 km from the epicenter and Labuan Lombok (10,000 inhabitants) 63 km away.
VolcanoDiscovery will automatically update the magnitude and depth if these change and follow up if other significant earthquake news becomes available. If you are in the region, please share your experience with us through our reporting mechanism, online or through our mobile app. This will help us provide more first-hand updates to anyone in the world who is interested in learning more about this earthquake.
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Date and hour : 15 Sep 2021 19:00:44 UTC –
Local time at epicenter: Thursday Sep 16, 2021 03h00 (GMT +8)
Depth: 10.0 km
Latitude / longitude of epicenter: 8.26 ° S / 117.2 ° E↗ (Flores Sea, Indonesia)
Antipode: 8.26 ° N / 62.8 ° W↗
Nearest volcano: Rinjani (82 km / 51 mi)
Nearby towns and villages:
35 km (22 mi) to WNW of Pototano (Kabupaten Sumbawa) (pop: 5,000) -> See earthquakes nearby!
35 km (22 mi) northwest of Sumbawa Besar (pop: 52,700) -> Observe the earthquakes nearby!
64 km (40 mi) ENE of Labuan Lombok (Kabupaten Lombok Timur) (pop: 10,000) -> Watch the earthquakes nearby!
64 km (40 mi) ENE of Labuan Lombok (pop: 10,000) -> Watch the earthquakes nearby!
114 km (71 mi) ENE of Praya (Kabupaten Lombok Tengah) (pop: 35,200) -> Observe the earthquakes nearby!
125 km (77 mi) ENE of Mataram-Lombok (pop: 318,700) -> See nearby earthquakes!
142 km (88 mi) WNO of Dompu (pop: 49,000) -> Watch the earthquakes nearby!
222 km (138 mi) ENE of Denpasar (pop: 834 900) -> Observe the earthquakes nearby!
425 km (264 mi) southwest of Macassar (pop: 1,321,700) -> See earthquakes nearby!
503 km (313 mi) ESE of Surabaya (pop: 2,374,700) -> See nearby earthquakes!
104 km (64 mi) WW of Pulau Sumbawa Island (pop: 1,391,300) -> See nearby earthquakes!
106 km (66 mi) ENE of Lombok Island (pop: 3,311,000) -> See nearby earthquakes!
Clouds covered 26.4 ° C (80 F), humidity: 78%, wind: 3 m / s (6 kts) from ESS
Main data source: BMKG (Meteorological, Climatological and Geophysical Agency of Indonesia)
Estimated energy released: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tonnes of TNT) Find out more
If you did NOT feel the earthquake although you are in the area, please report it! Your contribution is valuable to earthquake science, seismic risk analysis and mitigation efforts. You can use your device’s location or the map to show where you were during the earthquake. Thank you!
Data for the same earthquake reported by different agencies
Info: The more agencies report the same earthquake and publish similar data, the more confidence you can have in the data. It normally takes up to a few hours for the seismic parameters to be calculated with near optimum accuracy.
|4.5||10 km||Sumbawa region, Indonesia||BMKG|
|4.4||10 km||SUMBAWA REGION, INDONESIA||EMSC|
Previous earthquakes in the same region
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