Earthquake Risk by ZIP Code
Enter any U.S. ZIP code to see recent earthquakes within ~100 miles, historical significant quakes, and an overall seismic risk assessment — all powered by live USGS data.
Understanding Earthquake Risk in the United States
All earthquake data on this page comes directly from the United States Geological Survey (USGS), which operates the national seismic monitoring network and records earthquakes worldwide in near real-time. When you search a ZIP code, we query the USGS catalog for every recorded quake within roughly 100 miles — both recent activity from the past 30 days and significant historical events going back 50 years.
Earthquake Risk Isn't Just a California Problem
While the West Coast gets most of the attention, seismic risk exists in surprising places. The New Madrid Seismic Zone threatens parts of Missouri, Tennessee, Arkansas, and Kentucky. South Carolina experienced one of the strongest quakes in U.S. history near Charleston in 1886. Oklahoma has seen significant induced seismicity in recent decades. And parts of Texas, Utah, Nevada, and the Pacific Northwest each carry their own distinct earthquake profiles. Checking the actual recorded history around a specific ZIP code tells you far more than state-level generalizations.
How to Read Magnitude Numbers
Earthquake magnitude is logarithmic — each whole number step represents roughly 32 times more energy released. A magnitude 3 quake is often felt but almost never damaging; a magnitude 5 can crack walls and shift foundations; a magnitude 6 or higher can cause serious structural damage near the epicenter. Depth matters too: shallow quakes (under 10 km) transmit far more shaking to the surface than deep ones of the same magnitude.
Why This Matters for Home Buyers and Renters
Standard homeowners and renters insurance policies do not cover earthquake damage — separate earthquake coverage must be purchased, and premiums vary dramatically based on local seismic history. If you're researching an area with our ZIP Code Search before a move or purchase, a quick check of local earthquake history helps you budget realistically for insurance and understand whether older homes in the area may need seismic retrofitting.