Last week, about 60 miles off the coast near Ferndale, California, the tectonic plates shifted under the Pacific Ocean, sending seismic waves through the ocean floor that radiated onto land and were ...

The Cascadia Subduction Zone, which spans from British Columbia to Northern California, periodically experiences megathrust earthquakes M >8. During these ruptures, the last of which occurred in 1700, ...

Figure 1: Map of the northern Cascadia subduction zone showing the distribution of earthquakes ... The last megathrust event occurred in 1700 with a magnitude estimated to be around 9. Inslab ...

A 7.0-magnitude earthquake that hit off the Northern California coast didn’t produce a significant tsunami, but it struck a ...

While Cascadia hasn't produced a great earthquake since 1700, it's only a matter of time. Scientists can't predict earthquakes but they can get a better idea of risk by understanding the fault's ...

A 7.0-magnitude earthquake off the California coast briefly triggered a tsunami warning for parts of Northern California and ...