Earthquake swarm with magnitudes up to 6.0 near King George Island, Antarctica

Earthquake swarm with magnitudes up to 6.0 near King George Island, Antarctica

Dozens of earthquakes have been registered just south of the King George Island, South Shetland Islands, Antarctica over the past 30 days, with magnitudes ranging from 4.7 to 6.0. Human habitation of King George Island is limited to research stations. Over the past…

Shallow M6.0 earthquake hits South Shetland Islands, Antarctica

Shallow M6.0 earthquake hits South Shetland Islands, Antarctica

A strong and shallow earthquake registered by the USGS as M6.0 hit the South Shetland Islands, Antarctica at 23:49 UTC on November 6, 2020. The agency is reporting a depth of 5.8 km (3.6 miles). EMSC is reporting M6.0 at a depth of 33 km (20 miles). The epicenter…

Rainforests once existed in Antarctica

Rainforests once existed in Antarctica

An international team of researchers found evidence that rainforests once existed in West Antarctica. The mid-Cretaceous time period, from circa 115 million to 80 million years ago, is considered the warmest period in the past 140 million years. Sea surface…

Planetary wave supercharging noctilucent clouds over Antarctica

Planetary wave supercharging noctilucent clouds over Antarctica

An atmospheric wave about half as wide as the Earth is supercharging noctilucent clouds (NLCs) in the southern hemisphere, with NASA's Aeronomy of Ice in the Mesosphere (AIM) spacecraft detecting the phenomenon in this series of south polar images from November…

Shallow M6.0 earthquake hits 265 km NE of Scott Island Bank, Antarctica

Shallow M6.0 earthquake hits 265 km NE of Scott Island Bank, Antarctica

A strong and shallow earthquake registered by the USGS as M6.0 hit 265 km (164 miles) NE of Scott Island Bank, Antarctica at 11:37 UTC on February 2, 2018. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth….

Mantle plume, a geothermal heat source under West Antarctic ice sheet

Mantle plume, a geothermal heat source under West Antarctic ice sheet

A new study adds to evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that forms lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing…