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Moderate mag. 4.3 earthquake - Andaman Sea, India, on Saturday, Sep 4, 2021 at 11:57 pm (GMT +5:30)

Moderate magnitude 4.3 earthquake at 10 km depth

4 Sep 18:40 UTC: First to report: TMD after 13 minutes.

Earthquake details

Date & time	Sep 4, 2021 18:27:26 UTC
Local time at epicenter	Saturday, Sep 4, 2021 at 11:57 pm (GMT +5:30)
Status	Confirmed
Magnitude	4.3
Depth	10.0 km
Epicenter latitude / longitude	9.17°N / 94.23°E (Andaman Sea, India)
Antipode	9.17°S / 85.77°W
Shaking intensity	Strong shaking
Felt	1 report
Primary data source	TMD (Earthquake Observation Division of Thailand)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	322 km (200 mi) SSE of Port Blair (pop: 112,100) \| Show on map \| Quakes nearby 159 km (99 mi) NE of Teressa Island (pop: 1,930) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 28°C (82 F), humidity: 78%, wind: 7 m/s (14 kts) from SW
Estimated seismic energy released	1.8 x 10¹¹ joules (49.4 megawatt hours, equivalent to 42.5 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
4.3	10 km	Nicobar Islands, India Region	TMD

Most recent quakes Top 20 past 24 hrs Quakes in India

Seismograms

Seismic station: Chiang Mai, Thailand (CHTO/IU network) | Distance from quake: 1187 km / 737 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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Translate

Vijayapur / Strong shaking (MMI VI) / both vertical and horizontal swinging / 10-15 s : We are all standing outside at rain

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