A third earthquake struck California in less than six hours, this one rocking the city of Hayward near San Francisco and San Jose. Experts are now fearing the worst amid the uptick in seismic events

Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re most common in Alaska, California, Hawaii, Oregon, Puerto Rico and Washington, according to the Department of Homeland Security.

The latest quake was the third to hit the area which sits near a number of fault lines running through California including the Arrowhead, Waterman Canyon, San Jacinto, Santa Ana, Cleghorn, and Tunnel