The 2021 South Sandwich Islands earthquakes were a pair of powerful earthquakes, followed by about a thousand strong aftershocks which struck along the South Sandwich Trench in August 2021. The quakes measured 7.5 and 8.1 on the moment magnitude scale, according to the United States Geological Survey.^[6] The mainshock is tied with another event in 1929 as the largest earthquake ever recorded in this region and the Atlantic Ocean as a whole,^[7] and is tied with the 2021 Kermadec Islands earthquake as the second largest earthquake of 2021. They occurred just two days before the 2021 Haiti earthquake.

• http://en.wikipedia.org/wiki/2021 South Sandwich Islands earthquakes