A minor, 3.5-magnitude earthquake struck in Southern California on Saturday ... U.S.G.S. scientists to update the shake-severity map. An aftershock is usually a smaller earthquake that follows ...

To find out how a big earthquake might hit your neighborhood take a look at scenario maps created for Southern California regions. For the basics in earthquake cartography—learn how hazard maps ...

The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.

Cal Fire added over 1.2 million acres in Central California to its fire hazard severity zones. New maps for Southern ...

The next phase of updated California Fire Hazard Severity Zones is set to be released Monday by the Office of the State Fire Marshal and Cal Fire. New maps rating the likelihood and severity of ...

Cal Fire released its new fire hazard severity maps, including for Sacramento, detailing which areas are at high risk of ...

"Hazard maps for California as well as Japan, Italy, Nepal and France all seemed to overpredict the historically observed earthquake shaking intensities. The hazard maps were made by groups in ...

"California is known as 'earthquake country' and residents should be aware of earthquake hazards and take steps to mitigate their personal risk." She added that "temporary increases or decreases ...

The new maps will show more areas at high fire hazard than before, reflecting new science incorporating the risk of wind-fueled fires. SACRAMENTO, California — The Los Angeles fires are delaying ...