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Moderate mag. 4.7 earthquake - Andaman Sea, 280 km southeast of Port Blair, India, on Sunday, Oct 24, 2021 at 3:17 pm (GMT +5:30) -

Moderate magnitude 4.7 earthquake at 10 km depth

24 Oct 09:58 UTC: First to report: NCS after 11 minutes.

Earthquake details

Date & time	Oct 24, 2021 09:47:24 UTC -
Local time at epicenter	Sunday, Oct 24, 2021 at 3:17 pm (GMT +5:30)
Status	Confirmed
Magnitude	4.7
Depth	10.0 km
Epicenter latitude / longitude	9.5248°N / 94.0881°E (Andaman Sea, India)
Antipode	9.525°S / 85.912°W
Shaking intensity	Moderate shaking near epicenter
Felt	0 reports
Primary data source	NCS (National Center for Seismology)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	280 km (174 mi) SSE of Port Blair (pop: 112,100) \| Show on map \| Quakes nearby 177 km (110 mi) NE of Teressa Island (pop: 1,930) \| Show on map \| Quakes nearby 302 km (188 mi) SE of North Sentinel Island (pop: 50) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Few Clouds 28.3°C (83 F), humidity: 69%, wind: 2 m/s (4 kts) from WSW
Estimated seismic energy released	7.1 x 10¹¹ joules (197 megawatt hours, equivalent to 169 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
4.7	10 km	276km SSE of Portblair, Andaman And Nicobar Island, India	NCS

Most recent quakes Top 20 past 24 hrs Quakes in India

Seismograms

Seismic station: Chiang Mai, Thailand (CHTO/IU network) | Distance from quake: 1158 km / 719 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (1)

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

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Port blair / not felt

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