Major U.S. Cities in Earthquake Zones: Seismic Risk Across the Nation

While California dominates earthquake awareness, significant seismic risk affects major metropolitan areas across the United States. Here's a regional breakdown of prominent cities in active earthquake zones:

California (Highest Risk)

• San Francisco
• Los Angeles
• San Diego
• Sacramento
• Fresno
• Long Beach
• Oakland
• Berkeley

Pacific Northwest (Cascadia Subduction Zone)

• Seattle, WA
• Tacoma, WA
• Olympia, WA
• Vancouver, WA
• Portland, OR
• Eugene, OR
• Salem, OR

Alaska (Most Seismically Active State)

• Anchorage
• Fairbanks
• Juneau

Intermountain West (Wasatch Fault & Basin and Range)

• Salt Lake City, UT
• Boise, ID
• Idaho Falls, ID
• Pocatello, ID
• Butte, MT
• Billings, MT
• Missoula, MT

Central U.S. (New Madrid Seismic Zone)

• St. Louis, MO
• Memphis, TN (near zone)

Other Notable Areas

• Charleston, SC (1886 magnitude 7.0 earthquake)
• Boston, MA (moderate risk, historical events)
• New York, NY (low-moderate risk, but high consequence due to density)

Preparedness Matters

Building codes, early warning systems (like ShakeAlert on the West Coast), and individual preparedness significantly reduce risk. Residents in all these areas should secure heavy furniture, maintain emergency supplies, and develop family communication plans.