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Very strong mag. 6.0 Earthquake - Indian Ocean on Monday, Nov 15, 2021 07:23 am (GMT +3)

Very strong magnitude 6.0 earthquake at 10 km depth

15 Nov 04:35 UTC: First to report: GFZ after 12 minutes.
15 Nov 04:36: Epicenter location corrected by 5.4 km (3.4 mi) towards E.
15 Nov 04:44: Now using data updates from USGS

Earthquake details

Date & time	Nov 15, 2021 04:23:30 UTC
Local time at epicenter	Monday, Nov 15, 2021 07:23 am (GMT +3)
Status	Confirmed
Magnitude	6
Depth	10.0 km
Epicenter latitude / longitude	37.4942°S / 51.269°E
Antipode	37.4942°N / 128.731°W
Shaking intensity	Strong shaking near epicenter
Felt	3 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	###NEARESTVOLCANO2###
Weather at epicenter at time of quake	Clear Sky 16.2°C (61 F), humidity: 81%, wind: 7 m/s (14 kts) from SW
Estimated seismic energy released	6.3 x 10¹³ joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 atomic bombs!) \| about seismic energy

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Compare Quake Data

Data for the same earthquake as reported by different agencies

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	Time GMT	Epicenter	Agency
6.0	10 km (6.2 mi) (*)	2021-11-15 04:23:30	South Indian Ocean	USGS (United States Geological Survey)
5.9	10 km (6.2 mi) (*)	2021-11-15 04:23:31	Southwest Indian Ridge 28 km (18 mi) epicenter difference with USGS	BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
6.0	10 km (6.2 mi) (*)	2021-11-15 04:23:30	SOUTH INDIAN OCEAN 12 km (7.5 mi) epicenter difference with USGS	EMSC (European-Mediterranean Seismological Centre)
5.3	10 km (6.2 mi) (*)	2021-11-15 04:23:32	Near Fianarantsoa 17 km (10.4 mi) epicenter difference with USGS	RENASS (Réseau National de Surveillance Sismique (RéNaSS))
6.0	10 km (6.2 mi) (*)	2021-11-15 04:23:31	South Indian Ocean 10.9 km (6.8 mi) epicenter difference with USGS	GFZ (German Research Centre for Geosciences)
6.1	0.8 km (0.5 mi)	2021-11-15 04:23:30	South Indian Ocean [Sea] 16 km (9.7 mi) epicenter difference with USGS	INGV (Istituto Nazionale di Geofisica e Vulcanologia)
6.0	10 km (6.2 mi) (*)	2021-11-15 04:23:31	South Indian Ocean 3 km (1.8 mi) epicenter difference with USGS	GeoAu (Geoscience Australia )

Notes:
(*) A depth given as 10 km often means that the the depth of the quake could not determined with sufficient accuracy.

Most recent quakes Top 20 past 24 hrs

Seismograms

Seismic station: Lobatse, Botswana (LBTB/GT network) | Distance from quake: 2794 km / 1736 mi | Show on map | Station Info

Seismic station Lobatse, Botswana: 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: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Lobatse, Botswana: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Lobatse, Botswana: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Lusaka, Zambia (LSZ/IU network) | Distance from quake: 3355 km / 2085 mi | Show on map | Station Info

Seismic station Lusaka, Zambia: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Lusaka, Zambia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Lusaka, Zambia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tsumeb, Namibia (TSUM/IU network) | Distance from quake: 3841 km / 2387 mi | Show on map | Station Info

Seismic station Tsumeb, Namibia: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Tsumeb, Namibia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tsumeb, Namibia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Mbarara, Uganda (MBAR/II network) | Distance from quake: 4611 km / 2865 mi | Show on map | Station Info

Seismic station Mbarara, Uganda: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Mbarara, Uganda: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mbarara, Uganda: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: West Island, Cocos (Keeling) Islands (COCO/II network) | Distance from quake: 5317 km / 3304 mi | Show on map | Station Info

Seismic station West Island, Cocos (Keeling) Islands: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station West Island, Cocos (Keeling) Islands: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station West Island, Cocos (Keeling) Islands: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User-reports for this quake (5)

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

Translate

Indian Ocean (1270.5 km NNW of epicenter) [Map] / Very weak shaking (MMI II)

Kolkata / not felt

Chipley Florida / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / very short

Durban / not felt (reported through our app)

Duisburg / Weak shaking (MMI III) / single lateral shake / 5-10 s

Aftershocks

[More info]

Recorded aftershocks, latest first (4 quakes)

Date and Time GMT	Mag Depth	Region	Details
Nov 15, 2021 20:48 2 years ago	4.8 10 km	Indian Ocean	More
Nov 15, 2021 07:12 2 years ago	5.0 10 km	Indian Ocean	More
Nov 15, 2021 06:13 2 years ago	4.5 10 km	Indian Ocean	More
Nov 15, 2021 04:52 2 years ago	4.7 10 km	Indian Ocean	More

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