
Classifications of calamitous events are typically categorized by their origin natural or human-induced. Natural events include geophysical occurrences like earthquakes and volcanic eruptions, hydrological events such as floods and tsunamis, climatological events... Read more »

Geological events like earthquakes, volcanic eruptions, and tsunamis arise from Earth’s internal processes. Hydrometeorological phenomena, including floods, droughts, wildfires, blizzards, and cyclones, stem from atmospheric or hydrological processes. These events vary in... Read more »

Natural hazards become disasters when they intersect with vulnerable populations. These events, ranging from sudden, violent upheavals to slow-onset crises, can be broadly categorized into geophysical, hydrological, meteorological, climatological, and biological events.... Read more »