Major magnitude. 7.0 earthquake – South Atlantic Ocean, Antarctica, on Saturday, 23 Jan 2021 7:36 pm (GMT -4)

Main magnitude. 7.0 earthquake – South Shetland Islands, Antarctica, on Saturday, 23 January 2021 at 23:36 (GMT) – data


Main magnitude 7.0 earthquake at 10 km depth

23 Jan 23:45 UTC: First to report: GFZ after 8 minutes.
23 Jan 23:45: Epicenter location corrected by 4.5 km (2.8 mi) in the direction of N.
… [show all] …
24 Jan 00:09: Magnitude recalculated from 6.9 to 7.0.

Replace Solar, 24 Jan 2021, 00:53

No tsunami risk

Based mostly on all out there knowledge, there may be / was NO TSUNAMI THREAT from this earthquake, in accordance with the U.S. Tsunami Warning System who issued a corresponding bulletin.

Earthquake knowledge:

I felt this quake

I did not really feel it

Date & time: 23 Jan 2021 23:36:52 UTC –
Native time at epicenter: Saturday, 23 Jan 2021 7:36 pm (GMT -4)
Magnitude: 7
Depth: 10.0 km
Epicenter latitude / longitude: 61.76°S / 55.46°W (South Atlantic Ocean, Antarctica)
Nearest volcano: Penguin Island (134 km / 83 mi)
Nearby towns and cities:
136 km (84 mi) E of Shetland del Sur islas Island –> See nearby quakes!
471 km (293 mi) NE of East Melchior s Island –> See nearby quakes!

Weather at epicenter at time of quake:
Broken Clouds 1.9°C (35 F), humidity: 91%, wind: 10 m/s (19 kts) from WNW

Primary data source: GFZ (German Analysis Centre for Geosciences)

Estimated launched vitality: 2 x 1015 joules (554 gigawatt hours, equal to 4.8 x 105 tons of TNT or 29.8 atomic bombs!) Extra data

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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.

Magnitude Depth Location Source
M 7.0 10 km South Shetland Islands, Antarctica GFZ
M 7.1 10 km SOUTH SHETLAND ISLANDS, Antarctica EMSC
M 6.9 61 km South Shetland Islands, Antarctica GeoAu
M 6.9 9.6 km South Shetland Islands, Antarctica USGS
M 7.1 10 km South Shetland Islands, Antarctica BMKG
M 6.9 20 km Antarctica [Sea] INGV
M 7.0 12 km TFAIAS (Argentina), Antarctica INPRES


Consumer reviews for this quake (40)

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Valdivia / not felt : Valdivia, Chile. It wasnt percieved within the city, recieved tsunami alert by way of cellphone, ONEMI stated the earthquake began on Chilean Central Zone and that’s WRONG data. Punta Arenas is in tsunami hazard. In case you are from that location go to Cerro La Cruz. | 11 customers discovered this attention-grabbing.

  • My mrs loud night breathing could be felt from the opposite facet of the world. In all probability that

Santiago , Chile / Reasonable shaking (MMI V) : My canines and cats the place the forst to note the quaque , it was ver quick and powerful | 2 customers discovered this attention-grabbing.

Texas / not felt : Please replace: The first 2 tsunami warning programs stated “no tsunami.” The third & 4th warnings stated “small waves” had been noticed. | One person discovered this attention-grabbing.

Villa maria del triunfo lima Perú (5780.7 km NNW of epicenter) [Map] / not felt : Por mi parte yo no he sentido ningún movimiento telúrico. | One person discovered this attention-grabbing.

Santiago / Sturdy shaking (MMI VI) : Sismo fuerte estaba en quarto piso | One person discovered this attention-grabbing.

Pta.arenas. (1326 km NW of epicenter) [Map] / not felt : No sentimos nada. | One person discovered this attention-grabbing.

Melbourne Victoria Australia / not felt

Russia, Sankt Petersburg(GMT+3), not felt. / not felt : Wow, Hi there all, Very Sturdy Earthquake results Mww.7.1 South Scotland’s Island’s, Antarctida. Too the my appartamet all okey, I’m sleeping, keep sayf all my expensive good friend’s, subsequent aftersaking this geology rulles,))),!!!

3016.6 km N of epicenter [Map] / not felt (reported via our app)

San Antonio / not felt

Punta arenas / not felt

Santiago, Chile / Reasonable shaking (MMI V)

Stanley, Falkland Islands / not felt

Tokyo, Japan / not felt

PUNTA ARENAS / not felt

punta arenas / not felt

3251.1 km N of epicenter [Map] / not felt (reported via our app)

Santiago (3328.4 km NNW of epicenter) [Map] / Mild shaking (MMI IV)

3140.3 km NNW of epicenter [Map] / not felt (reported via our app)

talca / Weak shaking (MMI III)

3342.6 km NNW of epicenter [Map] / not felt (reported via our app)

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3419.9 km NNW of epicenter [Map] / Sturdy shaking (MMI VI)

Punta Arenas / not felt

Santiago / Reasonable shaking (MMI V) / each vertical and horizontal swinging / 2-5 s

La Florida, Chile (3318.5 km NNW of epicenter) [Map] / Reasonable shaking (MMI V) / horizontal (sideways) swinging / 15-20 s

Zapallar, Chile / Mild shaking (MMI IV) / rattling, vibrating / 5-10 s

3326.7 km NNW of epicenter [Map] / Reasonable shaking (MMI V)

Machali / Reasonable shaking (MMI V) / rattling, vibrating / 20-30 s

Ñuñoa / Very sturdy shaking (MMI VII) / rattling, vibrating / 10-15 s

3313.5 km NNW of epicenter [Map] / Extreme shaking (MMI VIII)

3217.9 km NNW of epicenter [Map] / not felt (reported via our app)

Quintero, Valparaiso Chile / not felt

3141.4 km NNW of epicenter [Map] / not felt (reported via our app)

St thomas virgin islands / not felt

Hampstead no / not felt

3352.3 km NNW of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s

Milan, Italy / not felt

3352.8 km NNW of epicenter [Map] / not felt (reported via our app)

Oakland, California, USA / not felt

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Aftershocks of the 7.0 quake South Atlantic Ocean, Antarctica, 23 Jan 2021 7:36 pm (GMT -4)

Extra data

Recorded aftershocks, latest first (4 quakes so far, frequently updated):

  • 24 Jan 2021 00:51 UTC

    | M 4.9 |

    10 km (6.2 mi) depth

    |

    5 km (3 mi) distance

    | EMSC | Details

  • 24 Jan 2021 00:05 UTC

    | M 4.9 |

    10 km (6.2 mi) depth

    |

    3 km (2 mi) distance

    | USGS | Details

  • 24 Jan 2021 00:03 UTC

    | M 5.0 |

    10 km (6.2 mi) depth

    |

    13 km (8 mi) distance

    | EMSC | Details

  • 23 Jan 2021 23:48 UTC

    | M 5.4 |

    10 km (6.2 mi) depth

    |

    12 km (8 mi) distance

    | GFZ | Details


Earlier earthquakes in the same area

Major magnitude. 7.0 earthquake – South Atlantic Ocean, Antarctica, on Saturday, 23 Jan 2021 7:36 pm (GMT -4)

Click here to search our database for earlier earthquakes in the same area since 1900!

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