• Steam plume visible at Ruapehu volcano, New Zealand

    A steam plume was seen above Ruapehu’s Crater Lake at around 09:45 LT on May 3, 2022 (21:45 UTC on May 2). No seismic or acoustic activity accompanied the plume appearance, indicating the steam plume was not generated by strong activity in the lake.

  • 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.