Earthquake Monitoring
Across the United States
Every year, the USGS detects over 20,000 earthquakes across the United States. Most go unfelt — but when a major quake strikes without warning, the results are catastrophic. Alertra monitors seismic activity for 33,000+ ZIP codes using live USGS data, giving you the earliest possible alert.
Seconds Matter.
Earthquakes Don't Wait.
Unlike hurricanes or wildfires, earthquakes provide zero advance warning. There is no "earthquake season." The ground simply moves — and in those first critical seconds, the difference between awareness and ignorance determines outcomes.
The 1994 Northridge earthquake struck at 4:30 AM on a holiday, killing 57 people and injuring 8,700 in a matter of seconds. It caused $20 billion in damage — making it the costliest natural disaster in US history at the time.
Alertra connects directly to the USGS real-time seismic network, delivering push notifications within 60 seconds of a verified rupture detection. Every second of early awareness is time to take cover, check on loved ones, and react.
Earthquake Monitoring by State
Every US state has experienced earthquakes. Click any state to view live seismic data for its most active monitoring zone. Sorted by largest recorded magnitude.
Don't wait to feel the shaking.
Alertra monitors USGS seismic data 24/7 and sends push notifications the moment an earthquake is detected near your ZIP code. No delays. No middleman.