The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

Two of the biggest seismic threats on the West Coast — the Cascadia Subduction Zone and the San Andreas Fault — may be more ...

Scientists compared sediment deposits created by underwater landslides from earthquakes within the Cascadia Subduction Zone ...

The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West ...