The San Andreas Fault (red lines) and the other plate boundaries (green lines). Color contours indicate the presumed fault slip distribution of the 1700 Cascadia Subduction Zone earthquake. Circles ...

The geometric structure of rocks where earthquakes occur could play a key role in determining their location and strength, researchers have found. A study, carried out by geologists at Brown ...

Remote sections along California’s massive San Andreas Fault, where large earthquakes regularly occur, may be primed to shake again any day now, according to a new study. The area around Parkfield in ...

Last Monday, April 14, an earthquake caught many people’s attention in Southern California. It was centered near the town of Julian about 35 miles inland from San Diego and triggered the USGS ...

In the wake of the devastating earthquake that killed an estimated 11,000 people in Turkey and Syria, scientists from around the world will be flocking to the disaster zone to learn more about the ...

HAYWARD, Calif. (KRON) — Predicting where and when the next “big one” will strike the San Francisco Bay Area is a tough task for seismologist. Five major fault lines cross the Bay Area: San Andreas, ...

SAN DIEGO (KGTV) — It’s been a couple weeks since Southern California felt a magnitude 5.2 earthquake, but parts of the state could be overdue for a much bigger one. Most earthquakes happen along ...

Scientists are raising the alarm about a potential seismic catastrophe on the West Coast of North America. Recent studies suggest that a massive earthquake along the Cascadia megathrust fault, which ...

What could the next mega-earthquake on California's notorious San Andreas fault look like? Would it be a repeat of 1857, when an earthquake estimated at magnitude 7.7 to 7.9 ruptured the fault from ...