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Moderate mag. 5.2 earthquake - Andaman Sea, India, on Friday, Sep 24, 2021 at 8:34 pm (GMT +5:30) -

Moderate mag. 5.2 earthquake - Andaman Sea, India, on Friday, Sep 24, 2021 at 8:34 pm (GMT +5:30) Moderate mag. 5.2 earthquake - Andaman Sea, India, on Friday, Sep 24, 2021 at 8:34 pm (GMT +5:30)

Moderate magnitude 5.2 earthquake at 63 km depth

24 Sep 15:11 UTC: First to report: NCS after 7 minutes.
24 Sep 15:15: Magnitude recalculated from 4.6 to 4.9. Hypocenter depth recalculated from 180.7 to 63.0 km (from 112 to 39 mi). Epicenter location corrected by 97 km (60 mi) towards NW.
24 Sep 16:47: Magnitude recalculated from 4.9 to 5.2.

Earthquake details

Date & timeSep 24, 2021 15:04:27 UTC -
Local time at epicenterFriday, Sep 24, 2021 at 8:34 pm (GMT +5:30)
Depth63.0 km
Epicenter latitude / longitude9.22°N / 93.92°E (Andaman Sea, India)
Antipode9.22°S / 86.08°W
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceNCS (National Center for Seismology)
Nearby towns and cities301 km (187 mi) SSE of Port Blair (pop: 112,100) | Show on map | Quakes nearby
401 km (249 mi) NNW of Sabang (Indonesia) (pop: 24,500) | Show on map | Quakes nearby
139 km (86 mi) NE of Teressa Island (pop: 1,930) | Show on map | Quakes nearby
317 km (197 mi) SE of North Sentinel Island (pop: 50) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 28.4°C (83 F), humidity: 81%, wind: 7 m/s (13 kts) from SW
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 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.
5.263 kmIndia: Nicobar IslandsNCS
5.427 kmNicobar Islands, India RegionGFZ
5.189 kmNicobar Islands, India RegionBMKG
5.410 kmNicobar Islands, India RegionTMD
5.410 kmNicobar Islands, India RegionUSGS
5.310 kmIndia: Near Banda AcehRENASS
5.520 kmNicobar Islands, India RegionGeoAu


Seismic station: Chiang Mai, Thailand (CHTO/IU network) | Distance from quake: 1196 km / 743 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
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Home / not felt (reported through our app)


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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