Two earthquakes shook a popular city on Monday morning (February 10), with the seismic activity reaching over four miles. ...

"It's pretty surreal to walk between two major pieces of Earth's crust that are drifting in different directions," Brooke ...

The four quakes occurred along the San Andreas fault - the volatile boundary between two tectonic plates: the Pacific plate and the North American plate. It runs 800 miles along the coast of ...

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 ...