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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.
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.
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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!
Broken Clouds
1.9°C (35 F), humidity: 91%, wind: 10 m/s (19 kts) from WNWPrimary 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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- 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,))),!!!
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
Santiago (3328.4 km NNW of epicenter) [Map] / Mild shaking (MMI IV)
talca / Weak shaking (MMI III)
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)
Quintero, Valparaiso Chile / not felt
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
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)
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