Moderate magnitude 4.6 earthquake at 20 km depth
31 Oct 03:14 UTC: First to report: VolcanoDiscovery after 10 minutes.
31 Oct 03:17: Now using data updates from EMSC
31 Oct 03:33: Magnitude recalculated from 4.9 to 4.6. Hypocenter depth recalculated from 1.0 to 10.0 km (from 0.6 to 6.2 mi). Epicenter location corrected by 9.5 km (5.9 mi) towards W.
31 Oct 07:48: Hypocenter depth recalculated from 10.0 to 20.0 km (from 6.2 to 12.4 mi). Epicenter location corrected by 6.9 km (4.3 mi) towards SW.
Update Sun, 31 Oct 2021, 03:21Magnitude 4.9 earthquake strikes near Luang Prabang, Luang Prabang Province, Laos
4.9 quake 31 Oct 10:04 am (GMT +7)
An earthquake of magnitude 4.9 occurred only 16 minutes ago 89 km southwest of Luang Prabang, Thailand, the European-Mediterranean Seismological Centre (EMSC) reported.
The quake hit at a very shallow depth of 1 km beneath the epicenter near Luang Prabang, Luang Prabang Province, Laos, in the morning on Sunday, October 31st, 2021, at 10:04 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.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Sainyabuli (pop. 13,500) located 48 km from the epicenter, Chiang Klang (pop. 13,200) 60 km away, Luang Prabang (pop. 47,400) 89 km away, and Nan (pop. 24,700) 105 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.
Download the Volcanoes & Earthquakes app
and get one of the fastest seismic alerts online:Android