Learn
Disaster science explained plainly
Articles on how these hazards work, how this site measures them, and what to do when one is near you.
What is an Earthquake? Science, Measurement, and Safety
Learn about earthquake science: plate tectonics, seismic waves, magnitude scales, and evidence-based safety guidance for earthquake preparedness.
How Disaster Data is Collected: A Guide to Scientific Monitoring Networks
Explore how disaster monitoring platforms collect data from seismological, satellite, meteorological, and hydrological networks worldwide.
How Population Exposure is Calculated in Disaster Monitoring
Learn how disaster monitoring platforms estimate population exposure using gaussian decay models, PEI metrics, and nearest city analysis.
Cascade Effects in Natural Disasters: How One Event Triggers Another
Discover how earthquakes trigger tsunamis and landslides, droughts fuel wildfires, and storms cause floods. Learn about disaster chain science.
What is the Calamity Score? Understanding Our Priority Index
Learn how the Calamity Score rates disasters from 0 to 100 using intensity, population impact, cascade risk, and historical context.