Mag. 4.7 earthquake - South Atlantic Ocean, Antarctica, on Sunday, 25 Oct 2020 8:06 pm (GMT -3) -
This quake was likely an aftershock of the 5.2 quake South Atlantic Ocean, Antarctica, 24 Oct 7:40 am (GMT -3), which had occurred 1 day 12 hours earlier.

Light magnitude 4.7 earthquake at 10 km depth
25 Oct 23:54 UTC: First to report: USGS after 47 minutes.
28 Oct 01:58: Epicenter location corrected by 17 km (10.6 mi) towards ESE.
28 Oct 01:58: Epicenter location corrected by 17 km (10.6 mi) towards ESE.
Local time at epicenter: Sunday, 25 Oct 2020 8:06 pm (GMT -3)
Magnitude: 4.7
Depth: 10.0 km
Epicenter latitude / longitude: 62.3305°S / 58.1111°W

Nearest volcano: Penguin Island (30 km / 19 mi)
Nearby towns and cities:
25 km (15 mi) SE of Napier Rock Island --> See nearby quakes!
54 km (34 mi) S of World's End Island --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds
0°C (32 F), humidity: 96%, wind: 8 m/s (16 kts) from N
Primary data source: USGS (United States Geological Survey)
Overcast Clouds

Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) More info
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 4.7 | 10 km | South Shetland Islands, Antarctica | USGS |
M 4.7 | 10 km | South Shetland Islands, Antarctica | EMSC |
M 4.7 | 10 km | South Shetland Islands, Antarctica | GFZ |
M 4.6 | 8 km | TFAIAS (Argentina), Antarctica | INPRES |
M 4.7 | 10 km | South Shetland Islands, Antarctica | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Mag. 4.7 earthquake - South Atlantic Ocean, Antarctica, on Sunday, 25 Oct 2020 8:06 pm (GMT -3)- Date / time UTC| Mag |Depth|Age|Distance| Details
- 17 Nov 2013 09:04| 7.8 |10km / 6.2mi|7 years ago|666km / 414mi| Scotia Sea
- 04 Aug 2003 04:37| 7.6 |10km / 6.2mi|17 years ago|805km / 500mi| Scotia Sea (Antarctica)
- 15 Jun 1970 11:14| 7.2 |10km / 6.2mi|51 years ago|949km / 589mi| Tierra Del Fuego, Argentina Region
- 25 Nov 2013 06:27| 7.0 |10km / 6.2mi|7 years ago|958km / 596mi| South Atlantic Ocean
- 08 Feb 1971 21:04| 7.0 |12.5km / 7.8mi|50 years ago|204km / 127mi| South Shetland Islands (Antarctica)
- 15 Jan 2012 13:40| 6.6 |8km / 5mi|9 years ago|187km / 116mi| South Shetland Islands (Antarctica)
- 26 Oct 1933 12:07| 6.6 |10km / 6.2mi|87 years ago|237km / 148mi| South Shetland Islands (Antarctica)
- 17 Jun 1992 08:39| 6.2 |10km / 6.2mi|29 years ago|225km / 140mi| South Shetland Islands (Antarctica)
- 19 Apr 1964 14:12| 6.1 |10km / 6.2mi|57 years ago|204km / 127mi| South Shetland Islands (Antarctica)
- 15 Jan 2012 14:21| 6.0 |10km / 6.2mi|9 years ago|197km / 122mi| South Shetland Islands (Antarctica)
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