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Moderate mag. 5.0 earthquake - Andaman Sea, India, on Thursday, Aug 5, 2021 at 6:16 pm (GMT +5:30)

This quake was likely an aftershock of the 6.1 quake Andaman Sea, India, Aug 3, 2021 9:12 am (GMT +5:30), which had occurred 2 days earlier.
Moderate mag. 5.0 earthquake - Andaman Sea, India, on Thursday, Aug 5, 2021 at 6:16 pm (GMT +5:30) Moderate mag. 5.0 earthquake - Andaman Sea, India, on Thursday, Aug 5, 2021 at 6:16 pm (GMT +5:30)

Moderate magnitude 5.0 earthquake at 100 km depth

5 Aug 12:56 UTC: First to report: GFZ after 10 minutes.
5 Aug 12:58: Epicenter location corrected by 9.4 km (5.8 mi) towards NE.
8 Aug 19:09: Now using data updates from NCS

Earthquake details

Date & timeAug 5, 2021 12:46:04 UTC
Local time at epicenterThursday, Aug 5, 2021 at 6:16 pm (GMT +5:30)
Depth100.0 km
Epicenter latitude / longitude8.73°N / 94.07°E (Andaman Sea, India)
Antipode8.73°S / 85.93°W
Shaking intensityLight shaking
Felt2 reports
Primary data sourceNCS (National Center for Seismology)
Nearby towns and cities345 km (214 mi) NNW of Sabang (Indonesia) (pop: 24,500) | Show on map | Quakes nearby
357 km (222 mi) SSE of Port Blair (pop: 112,100) | Show on map | Quakes nearby
381 km (237 mi) NNW of Banda Aceh (Indonesia) (pop: 250,800) | Show on map | Quakes nearby
427 km (265 mi) NNW of Sigli (Kabupaten Pidie, Indonesia) (pop: 17,500) | Show on map | Quakes nearby
461 km (286 mi) NNW of Reuleuet (Indonesia) (pop: 40,400) | Show on map | Quakes nearby
488 km (303 mi) NW of Bireun (Kabupaten Bireuen, Indonesia) (pop: 25,800) | Show on map | Quakes nearby
521 km (324 mi) NW of Lhokseumawe (Indonesia) (pop: 89,000) | Show on map | Quakes nearby
117 km (73 mi) ENE of Teressa Island (pop: 1,930) | Show on map | Quakes nearby
Estimated seismic energy released2 x 1012 joules (554 megawatt hours, equivalent to 477 tons of TNT) | about seismic energy
Show interactive Map
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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.
5.0100 kmNicobar Islands, India RegionNCS
4.910 kmNicobar Islands, India RegionTMD
5.097 kmNicobar Islands, India RegionBMKG
5.010 kmIndia: Near Banda AcehRENASS
5.117 kmNicobar Islands, India RegionUSGS
5.210 kmNicobar Islands, India RegionGeoAu
5.110 kmNicobar Islands, IndiaGFZ


Seismic station: Chiang Mai, Thailand (CHTO/IU network) | Distance from quake: 1238 km / 769 mi | Show on map | Station Info
Seismic station Chiang Mai, Thailand: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Kebayakan, Aceh (549.2 km SE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Tillanchong (55.2 km WSW of epicenter) [Map] / Light shaking (MMI IV)

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