Information on the earthquake: moderate mag. 4.9 earthquake
Moderate magnitude earthquake 4.9 to 10 km deep
December 4 03:42 PM UTC: First to report: GFZ after 13 minutes.
Dec 4 15:45: Now using data updates from BMKG
Dec 4 15:59: Now using USGS data updates
Updated Sat Dec 4 2021, 16:00
Moderate-magnitude 4.9 earthquake hits 121 km northwest of Sinabang, Indonesia, late overnight
4.9 earthquake 4 December 22:29 (GMT +7)
According to the United States Geological Survey, the earthquake struck on Saturday, December 4, 2021 at 10:29 p.m. local time at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deep ones because they are closer to the surface. The magnitude and other parameters of the earthquake may still change in the coming hours as the agency continues to process seismic data.
A second report was later released by the Indonesian Meteorological, Climatological and Geophysical Agency, which listed it as a magnitude 4.8 earthquake. Other agencies reporting the same earthquake include the German Research Center for Geosciences (GFZ) at magnitude 4.8 and the Euro-Mediterranean Seismological Center (EMSC) at magnitude 4.9.
Cities near the epicenter where the quake could have been felt as very weak tremors include Sinabang (population 15,000) located 121 km from the epicenter.
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 let us know about your experience through our reporting mechanism, either in line 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.
If you were or still are in this area during the earthquake help others with your comments and report it here.
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Date and hour : December 4, 2021 03:29:33 PM UTC –
Local time at epicenter: Saturday 4 December 2021 10:29 p.m. (GMT +7)
Depth: 10.0 km
Latitude / longitude of epicenter: 2.8465 ° N / 95.3577 ° E?? (Indian Ocean, Indonesia)
Antipode: 2.847 ° S / 84.642 ° W??
Nearby towns and villages:
121 km (75 mi) to WNW of Sinabang (Kabupaten Simeulue) (pop: 15,000) -> See earthquakes nearby!
168 km (104 mi) SSO of Meulaboh (Kabupaten Aceh Barat) (pop: 35,100) -> See earthquakes nearby!
277 km (172 mi) to WNW of Singkil (pop: 46,800) -> See earthquakes nearby!
283 km (176 mi) SSO of Reuleuet (pop: 40,400) -> See earthquakes nearby!
300 km (186 mi) south of Banda Aceh (pop: 250,800) -> See earthquakes nearby!
327 km (203 mi) southwest of Lhokseumawe (pop: 89,000) -> See earthquakes nearby!
357 km (222 mi) WW of Binjai (pop: 228,800) -> See earthquakes nearby!
371 km (230 mi) WW of Sunggal (pop: 157,900) -> See earthquakes nearby!
376 km (234 mi) OSO of metan (pop: 1,751,000) -> See earthquakes nearby!
399 km (248 mi) WW of Crash (pop: 311,100) -> See earthquakes nearby!
Some clouds 28.3 ° C (83 F), humidity: 73%, wind: 3 m / s (6 kts) from WNW
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 earthquake parameters to be calculated with near optimum accuracy.
|4.9||10 km||Indonesia: off the west coast of North Sumatra||USGS|
|4.9||30 km||SIMEULUE, INDONESIA||EMSC|
|4.9||10 km||Indonesia: off the west coast of North Sumatra||RaspberryShake|
|5.0||10 km||Indonesia: off the west coast of North Sumatra||GFZ|
|4.8||27 km||120 Km WNW from Sinabang, Indonesia||BMKG|
|5.0||15 km||Indonesia: off the west coast of North Sumatra||GeoAu|
Previous earthquakes in the same region
Click here to search our database for previous earthquakes in the same area since 1900!