Moderate mag. 4.8 earthquake - Indian Ocean, 26 km west of Sinabang, Kabupaten Simeulue, Aceh, Indonesia, on 11 May 3:44 am (GMT +7) -

Moderate mag. 4.8 earthquake - Indian Ocean, 26 km west of Sinabang, Kabupaten Simeulue, Aceh, Indonesia, on 11 May 3:44 am (GMT +7)

Moderate magnitude 4.8 earthquake at 10 km depth

10 May 20:51 UTC: First to report: EMSC after 6 minutes.
10 May 20:55: Now using data updates from BMKG
Update Mon, 10 May 2021, 20:57
Moderate 4.8 quake hits near Sinabang, Kabupaten Simeulue, Aceh, Indonesia
4.8 quake 11 May 3:44 am (GMT +7)
4.8 quake 11 May 3:44 am (GMT +7)
A magnitude 4.8 earthquake near Sinabang, Kabupaten Simeulue, Aceh, Indonesia, was reported only 13 minutes ago by Indonesia's Meteorology, Climatology, and Geophysical Agency, considered the main national agency that monitors seismic activity in Indonesia. The earthquake occurred at a shallow depth of 10 km beneath the epicenter early morning on Tuesday 11 May 2021 at 3:44 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 European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.8 as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Sinabang (pop. 15,000) located 26 km from the epicenter, the quake should have been felt as light shaking.
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 to get one of the fastest seismic alerts online:
Android | IOS

Earthquake data:

Date & time: 10 May 2021 20:44:34 UTC -
Local time at epicenter: 11 May 3:44 am (GMT +7)
Magnitude: 4.8
Depth: 10.0 km
Epicenter latitude / longitude: 2.42°N / 96.15°E (Indian Ocean, Indonesia)
Nearest volcano: Kembar (231 km / 144 mi)
Nearby towns and cities:
26 km (16 mi) WSW of Sinabang (Kabupaten Simeulue) (pop: 15,000) --> See nearby quakes!
183 km (114 mi) W of Singkil (pop: 46,800) --> See nearby quakes!
192 km (119 mi) S of Meulaboh (Kabupaten Aceh Barat) (pop: 35,100) --> See nearby quakes!
271 km (168 mi) WSW of Kabanjahe (pop: 57,200) --> See nearby quakes!
276 km (171 mi) WSW of Berastagi (pop: 44,800) --> See nearby quakes!
291 km (181 mi) WSW of Binjai (pop: 228,800) --> See nearby quakes!
303 km (188 mi) WSW of Sunggal (pop: 157,900) --> See nearby quakes!
308 km (191 mi) WSW of Medan (pop: 1,751,000) --> See nearby quakes!
330 km (205 mi) WSW of Percut (pop: 311,100) --> See nearby quakes!
359 km (223 mi) SSE of Banda Aceh (pop: 250,800) --> See nearby quakes!
218 km (135 mi) NW of Nias Island (pop: 756,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 27.8°C (82 F), humidity: 77%, wind: 1 m/s (2 kts) from SW
Primary data source: BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
4.810 kmNorthern Sumatra, IndonesiaBMKG
4.819 kmNorthern Sumatra, IndonesiaGFZ

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.