7 Biggest Fault Lines in US

7. Hayward Fault Zone

Length: 74 miles

San Andrea isn’t the only geological danger in Northern California. Hayward Fault Zone runs parallel to its more famous cousin, smack through the middle of San Francisco Bay, with cities like Richmond, Berkeley, and Oakland above it, with San Francisco just a few miles away. Despite being the shortest fault line on our list, it is considered one of the most dangerous ones in the US.

 7 Biggest Fault Lines in US