A 4.3 magnitude earthquake near Mataram, ID.17 Lombok (undefined), west of Nusa Tenggara, Indonesia, was reported just 21 minutes ago by the Indonesian Meteorological Agency , climatology and geophysics, considered to be the main national agency that monitors seismic activity in Indonesia. The earthquake occurred at a shallow depth of 10 km below the epicenter in the early morning hours on Thursday, April 1, 2021 at 2:57 a.m. local time. The exact magnitude, epicenter and depth of the quake could be revised in the next few hours or minutes, as seismologists review the data and refine their calculations, or when other agencies release their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Center (EMSC) which listed the earthquake at a magnitude of 4.0.
Based on preliminary seismic data, the quake should not have caused significant damage, but was likely felt by many to be slight vibrations in the epicenter area.
Weak tremors could have been felt in Praya (35,200 inhabitants) located 17 km from the epicenter, in Lembar (10,000 inhabitants) at 33 km and in Mataram (318,700 inhabitants) at 38 km.
Other towns close to the epicenter where the earthquake could have been felt as very weak tremors include Labuan Lombok (10,000 inhabitants) located 50 km from the epicenter, Labuan Lombok (10,000 inhabitants) 50 km, Amlapura (31,900 inhabitants) 92 km, Karangasem (31,900 inhabitants) 92 km and Bedugul (20,000 inhabitants) 94 km.
VolcanoDiscovery will automatically update the magnitude and depth if these change and follow up if other important earthquake information becomes available. If you are in the region, please let us know your experience through our reporting mechanism, online or via our mobile application. This will help us provide more first-hand updates to anyone in the world who is interested in learning more about this earthquake.

Date and time: March 31, 2021 18:57:22 UTC –
Local time at epicenter: Thursday April 1, 2021 2:57 am (GMT +8)
Magnitude: 4.3
Depth: 10.0 km
Epicenter latitude / longitude: 8.83 ° S / 116.37 ° E (West Nusa Tenggara, Indonesia)
Nearest volcano: Rinjani (47 km / 29 mi)
Neighboring towns:
18 km (11 mi) SE of Praya (Kabupaten Lombok Tengah) (pop: 35,200) -> See nearby earthquakes!
34 km (21 mi) ESE of Lembar (Kabupaten Lombok Barat) (pop: 10,000) -> See nearby earthquakes!
39 km (24 mi) SE of Mataram (pop: 318,700) -> See nearby earthquakes!
49 km (31 mi) SW of Labuan Lombok (Kabupaten Lombok Timur, Nusa Tenggara Barat) (pop: 10,000) -> See nearby earthquakes!
49 km (31 mi) SW of Labuan Lombok (pop: 10,000) -> See nearby earthquakes!
93 km (58 mi) ESE of Amlapura (Bali) (pop: 31900) -> See nearby earthquakes!
93 km (58 mi) ESE of Karangasem (pop: 31900) -> See nearby earthquakes!
95 km (59 mi) ESE of Bedugul (Bali) (pop: 20,000) -> See earthquakes nearby!
436 km (271 mi) ESE of Surabaya (East Java) (pop: 2,374,700) -> See nearby earthquakes!
330 mi (531 km) SW of Makassar (South Sulawesi) (pop: 1,321,700) -> See earthquakes nearby!

Main data source: BMKG (Meteorological, Climatological and Geophysical Agency of Indonesia)
Estimated energy released: 1.8 x 10¹¹ joules (49.4 megawatt hours, or 42.5 tonnes of TNT) More info

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