Stay informed, stay safe. Your local alerts guide the way.
PlanetShake is a free public service that monitors significant earthquakes (magnitude 4.5 and above) around the world and shares timely awareness alerts. For 10 years we have been warning about significant earthquakes.
Earthquake Alerts for the Public
Real-time tracking of earthquakes magnitude 4.5 and above, sourced from major agencies including USGS, GEOFON and JMA. Get notified when significant events occur near regions you care about.
Regional Maps (M4.5+)
An interactive global map plots every qualifying earthquake with magnitude-scaled markers, plus live DART tsunami buoy status across the Pacific, Indian and Atlantic oceans.
Alert News & Probabilities
Our Seismic Probability Index (SPI) highlights regions where activity may increase over the next 24–72 hours and the next two weeks. These are model-estimated probabilities, not scientific forecasts.
Instant Earthquake Alerts
Get a critical push notification the instant an M4.5+ quake is detected — the alert travels at network speed, racing ahead of the seismic waves. Works even when PlanetShake is closed.
We store only an anonymous device token to deliver alerts — no email or personal data. Turn off anytime.
SPI Probability Update
Next 2 weeks • M ≥ 5.5- Japan (Honshu–Bonin–Ryukyu)78%
- Alaska–Aleutians70%
- Philippines / Manila Trench69%
- Indonesia (Sulawesi–Maluku)67%
- Chile (Valdivia–Central)61%
- California–Nevada Border55%
- Hawaii50%
- Cascadia (Oregon–Washington)48%
- Turkey / Anatolian Faults44%
- Southern California42%
- Iran–Afghanistan–Pakistan40%
These are model-estimated probabilities, not scientific forecasts. Always follow guidance from your official local authorities.