Frequently Asked Questions

Question 1

How often is the earthquake data updated? +

Answer

Our data refreshes every 60 seconds directly from the USGS Earthquake Hazards Program API.

Question 2

What is the minimum magnitude shown on the map? +

Answer

We show all earthquakes with magnitude 3.0 or above on the live world map. Smaller quakes appear in the sidebar list.

Question 3

Can I report if I felt an earthquake? +

Answer

Yes! Click any earthquake on the map or list to open its detail page and submit a 'I Felt It' report.

Question 4

Is QuakeWatch free to use? +

Answer

Completely free. No subscription or payment required.

Question 5

What does earthquake magnitude mean? +

Answer

Magnitude measures the energy released by an earthquake. Each whole number increase represents about 32 times more energy released.

Question 6

What is earthquake depth? +

Answer

Depth is how far below the Earth's surface the earthquake originated. Shallow quakes (0–70 km) tend to cause more surface damage than deep ones.

Question 7

What is a tsunami warning? +

Answer

A tsunami warning means an earthquake may have generated a dangerous ocean wave. Always heed official warnings from your national emergency services.