Seismic Study Reveals Hidden Megathrust Earthquake Risk off British Columbia – State of the Planet
Adapted from a release written by Alison Auld for Dalhousie University
Lamont’s R/V Marcus G. Langseth. Credit: Anne Becel
A new study published in Science Advances has revealed the first detailed images of a newly developing subduction zone off the coast of British Columbia’s Haida Gwaii archipelago.
The international team of researchers collected the data for this study during a 2021 cruise by the Lamont-Doherty Earth Observatory’s research vessel, the Marcus G. Langseth. They used a 15-kilometer-long underwater cable equipped with thousands of underwater microphones, called hydrophones, in the area off northern British Columbia to map the deep structure of the Earth’s subsurface.
Their data confirmed that the Queen Charlotte fault system can generate powerful megathrust eart...