Hannah Hickey. The field of plate tectonics is not that old, and scientists continue to learn the details of earthquake-producing geologic faults. The Cascadia Subduction Zone — the eerily quiet offshore fault that threatens to unleash a magnitude-9 earthquake in the Pacific Northwest — still holds many mysteries.
Link: Warm liquid spewing from Oregon seafloor comes from Cascadia fault, could offer clues to earthquake hazards
via www.washington.edu
