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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 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 & time	Aug 5, 2021 12:46:04 UTC
Local time at epicenter	Thursday, Aug 5, 2021 at 6:16 pm (GMT +5:30)
Status	Confirmed
Magnitude	5
Depth	100.0 km
Epicenter latitude / longitude	8.73°N / 94.07°E (Andaman Sea, India)
Antipode	8.73°S / 85.93°W
Shaking intensity	Light shaking
Felt	2 reports
Primary data source	NCS (National Center for Seismology)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	345 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
Weather at epicenter at time of quake
Estimated seismic energy released	2 x 10¹² joules (554 megawatt hours, equivalent to 477 tons of TNT) \| about seismic energy

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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.

Mag.	Depth	Location	Source
5.0	100 km	Nicobar Islands, India Region	NCS
5.1	51 km	NICOBAR ISLANDS, INDIA REGION	EMSC
4.9	10 km	Nicobar Islands, India Region	TMD
5.0	97 km	Nicobar Islands, India Region	BMKG
5.0	10 km	India: Near Banda Aceh	RENASS
5.1	17 km	Nicobar Islands, India Region	USGS
5.2	10 km	Nicobar Islands, India Region	GeoAu
5.1	10 km	Nicobar Islands, India	GFZ

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Seismograms

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

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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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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