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Major magnitude 6.6 earthquake - Mauritius/Reunion Region on Wednesday, 12 May 2021 at 14:05 (GMT) - information

Major magnitude 6.6 earthquake - Indian Ocean on 12 May 6:05 pm (GMT +4)

Major magnitude 6.6 earthquake - Indian Ocean on 12 May 6:05 pm (GMT +4) Major magnitude 6.6 earthquake - Indian Ocean on 12 May 6:05 pm (GMT +4)

Major magnitude 6.6 earthquake at 10 km depth

12 May 14:16 UTC: First to report: GFZ after 11 minutes.
12 May 14:17: Epicenter location corrected by 1.1 km (0.7 mi) towards E.
12 May 14:23: Magnitude recalculated from 5.9 to 6.7. Epicenter location corrected by 29 km (18 mi) towards NNW.
12 May 14:45: Magnitude recalculated from 6.7 to 6.6.

Earthquake details

Date & timeMay 12, 2021 14:05:16 UTC
Local time at epicenter12 May 6:05 pm (GMT +4)
StatusConfirmed
Magnitude6.6
Depth10.0 km
Epicenter latitude / longitude17.31°S / 66.45°E
Antipode17.31°N / 113.55°W
Shaking intensityVery strong shaking near epicenter
Felt3 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearby towns and cities415 km (258 mi) NE of Port Mathurin (pop: 6,000) | Show on map | Quakes nearby
415 km (258 mi) NE of Port Mathurin (pop: 6,000) | Show on map | Quakes nearby
415 km (258 mi) NE of Port Mathurin (pop: 6,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeFew Clouds 25.8°C (78 F), humidity: 76%, wind: 10 m/s (20 kts) from ESE
Estimated seismic energy released5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) | 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.DepthLocationSource
6.610 kmMauritius/Reunion RegionGFZ
6.710 kmMAURITIUS - REUNION REGIONEMSC
5.510 kmNear Port Louis, MauritiusRENASS
6.039 kmMauritius/Reunion RegionBMKG
6.30.8 kmMauritius - Reunion Region [Sea]INGV
6.710 kmMauritius - Reunion RegionUSGS
6.610 kmMauritius/Reunion RegionGeoAu

Seismograms

Seismic station: Kilima Mbogo, Kenya (KMBO/IU network) | Distance from quake: 3664 km / 2277 mi | Show on map | Station Info
Seismic station Kilima Mbogo, Kenya: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (40)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Centre de Flacq (978.6 km WSW of epicenter) [Map] / not felt : Nothing | 4 users found this interesting.  
Grand bay (998.2 km WSW of epicenter) [Map] / not felt : Felt nothing | 3 users found this interesting.  
Maharagama, Colombo District, Western (3066.1 km NNE of epicenter) [Map] / not felt : Not felt | 3 users found this interesting. (reported through our app)  
Costa Rica / not felt : Nothibg | 3 users found this interesting.  
Indian Ocean (102.4 km S of epicenter) [Map] / not felt : No signs or sensations at all. Even the dogs didn't bark at that time. | 2 users found this interesting.  
Balaclava, mauritius / not felt : A friend's dad was out fishing when it happened. The boat flipped in a big wave. He is missing but his companions were found. | One user found this interesting.  
  • His father still isn't found, unfortunately.
New grove, Mauritius (992.1 km WSW of epicenter) [Map] / not felt : I felt nothing at all,like I didn't even know an earthquake occurred...hopefully it didn't create any tsunami...I wonder if there will be another earthquake in the same week  
Grand bay (981.9 km WSW of epicenter) [Map] / not felt : Nothing | One user found this interesting.  
Port Mathurin, Rodrigues / not felt : I was between 5.30 and 6.30 at the jetty for watching the sighting of the New Moon which was not visible. Everything at the jetty was calm.  
Floreal, Mauritius (1000.1 km WSW of epicenter) [Map] / not felt : Everything was normal. Felt no change.  
Seychelles (1837 km NW of epicenter) [Map] / not felt
Mauritius (983 km WSW of epicenter) [Map] / not felt
L'escalier (993.6 km WSW of epicenter) [Map] / not felt
Mauritius (999.7 km WSW of epicenter) [Map] / not felt
Mauritius (1001.5 km WSW of epicenter) [Map] / not felt
Flic en Flac, Mauritius (1012.2 km WSW of epicenter) [Map] / not felt
Mahébourg, Grand Port (977.8 km WSW of epicenter) [Map] / not felt
Albion, Black River District (1005.5 km WSW of epicenter) [Map] / not felt
Pamplemousses (984.9 km WSW of epicenter) [Map] / not felt
Russia, Sankt Petersburg City,(GMT+3),not felt. / not felt : Not felt event to my appartament.!!!. | One user found this interesting.  
Gurugram, india / Very weak shaking (MMI II) / 1-2 s : I just blacked out for a second  
Floreal / not felt
Grand Baie Mauritius / not felt
Tamarin, Mauritius / not felt : We didn't feel anything even though we are so close.  
Mauritius Curepipe / not felt
Tamarin, Mauritius / not felt
Rose Hill / not felt : DID NOT NOTICE ANYTHING  
Goodlands, Mauritius / not felt : Nothing  
Port Louis Mauritius / not felt
San José, Costa Rica / not felt
Phoenix / Weak shaking (MMI III)
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Aftershocks

[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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