• Large surface rupture identified after M5.1 earthquake hits North Carolina, the largest in nearly 100 years

    A co-seismic surface rupture was identified along a 2 km (1.2 miles) long traceable zone after M5.1 earthquake hit North Carolina in 2020 – the largest to hit the state in nearly 100 years. The rupture exposed a previously unknown fault in the earth, representing the first documented surface rupture earthquake in the eastern United States.

  • Earthquake swarm detected in the vicinity of Edgecumbe volcano, U.S.

    m of earthquakes has been detected in the vicinity of Mount Edgecumbe volcano, beginning at about 10:00 UTC on April 11, 2022. The cause of the swarm is currently unknown. A small number of earthquakes were also recorded in 2020 but this swarm is unusual in the number of events. The last eruption of this volcano was in 2220 BCE (± 100 years).