Strong mag. 5.4 earthquake - South Atlantic Ocean, Antarctica, on Sunday, 24 Jan 2021 8:14 am (GMT -4) -
This quake was likely an aftershock of the 7.0 quake South Atlantic Ocean, Antarctica, 23 Jan 2021 7:36 pm (GMT -4), which had occurred 13 hours earlier.
Strong magnitude 5.4 earthquake at 10 km depth
24 Jan 12:23 UTC: First to report: GFZ after 8 minutes.
24 Jan 12:29: Magnitude recalculated from 5.4 to 5.5. Epicenter location corrected by 3.4 km (2.1 mi) towards WSW.
24 Jan 13:07: Magnitude recalculated from 5.5 to 5.4.
24 Jan 12:29: Magnitude recalculated from 5.4 to 5.5. Epicenter location corrected by 3.4 km (2.1 mi) towards WSW.
24 Jan 13:07: Magnitude recalculated from 5.5 to 5.4.
Date & time: 24 Jan 2021 12:14:46 UTC -
Local time at epicenter: Sunday, 24 Jan 2021 8:14 am (GMT -4)
Magnitude: 5.4
Depth: 10.0 km
Epicenter latitude / longitude: 61.65°S / 55.05°W
(South Atlantic Ocean, Antarctica)Nearest volcano: Penguin Island (159 km / 99 mi)
Weather at epicenter at time of quake:
Overcast Clouds
1.2°C (34 F), humidity: 95%, wind: 5 m/s (11 kts) from WNW
Primary data source: GFZ (German Research Centre for Geosciences)Overcast Clouds
1.2°C (34 F), humidity: 95%, wind: 5 m/s (11 kts) from WNWEstimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) 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 5.4 | 10 km | South Shetland Islands, Antarctica | GFZ |
| M 5.5 | 10 km | SOUTH SHETLAND ISLANDS, Antarctica | EMSC |
| M 5.5 | 10 km | South Shetland Islands, Antarctica | USGS |
| M 5.6 | 10 km | 190 Km Al E De Base Frei, Antártica, Antarctica | GUG (U. Chile) |
| M 5.5 | 70 km | South Shetland Islands, Antarctica | GeoAu |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!
