Huaynaputina Volcano Erupts in Massive Blast
In the remote Andes of southern Peru, Huaynaputina volcano had shown signs of unrest with earthquakes in the days leading up to its climactic activity. On February 19, 1600, a powerful Plinian eruption began, ejecting vast quantities of ash and pumice high into the atmosphere over several hours and continuing with pyroclastic flows and ashfall into early March. Witnesses in nearby Arequipa described darkened skies and heavy tephra deposits that buried villages and farmlands under meters of material. The eruption killed hundreds locally through direct impacts and disrupted agriculture across the region for years. Globally, the sulfur aerosols injected into the stratosphere triggered a noticeable volcanic winter, with cooler temperatures recorded in Europe, Asia, and the Americas during 1601.