Building collapses occur when a structure fails to support its own weight or withstand external forces, leading to a sudden and often catastrophic failure. Common causes include poor construction practices, inadequate materials, design flaws, and natural disasters like earthquakes or severe storms. When a building collapses, it can result in significant damage, injuries, or loss of life. Emergency responders typically work quickly to rescue trapped individuals and assess the situation. Investigations follow to determine the cause and prevent future incidents, often involving experts in engineering and safety regulations, such as those from OSHA or FEMA.