On the morning of October 20, 1687, the ground beneath Peru's southern coast began to move. What followed was not one catastrophe but a cascade of them: an earthquake estimated at magnitude 8.4 to 8.7, a tsunami that swept the port of Pisco off the map, and -- in a slower-moving disaster that unfolded over years -- the permanent collapse of Peru's wine industry, then the largest in the Americas. About 5,000 people died. The shock was powerful enough to generate tsunami waves that crossed the Pacific Ocean and struck Japan, producing runups measured in tens of meters on shores more than 14,000 kilometers away.
The 1687 earthquake originated along one of the most seismically violent boundaries on Earth: the subduction zone where the Nazca Plate dives beneath the South American Plate. This is the engine that built the Andes. Along Peru's and Chile's coasts, the collision generates megathrust earthquakes -- the largest class of seismic events the planet produces. The 1960 Valdivia earthquake in Chile, the most powerful ever recorded at magnitude 9.5, came from the same plate boundary. In 1687, the rupture tore along enough of this interface to devastate Lima, Callao, and the entire Ica region simultaneously. Seismologists believe a second major event may have followed shortly after, further to the south, compounding the destruction along hundreds of kilometers of coastline.
The port city of Pisco bore the worst of it. The earthquake shattered buildings throughout the town, and the tsunami that followed erased what remained. Contemporary accounts describe at least three ships being carried over the ruins of the city by the wave -- not dashed against the shore, but swept entirely across the rubble where streets and buildings had stood minutes before. Lima and Callao, farther north, suffered severe structural damage as well. The 5,000 dead represented a significant portion of the colonial population along this stretch of coast. In an era before reinforced construction, the adobe and stone buildings of Peru's colonial towns offered little resistance to shaking of this intensity.
In the sixteenth and seventeenth centuries, Peru's central and southern coast was the principal wine-growing region of the entire Western Hemisphere. The area around Ica and Pisco -- the same city that would later give its name to Peru's national spirit -- contained the largest concentration of wineries in the Americas. The earthquake destroyed wine cellars and the large mud containers, called tinajas, used for fermenting and storing wine. The damage coincided with a stem rust epidemic that was already weakening Peruvian agriculture. Together, these disasters opened a door that Peru's wine industry never walked back through. Chilean wheat, cheaper and better-suited to Chile's soils and climate, began flooding Peruvian markets. Chilean wine followed. The 1687 earthquake did not merely shake the ground; it permanently rearranged the economic geography of South America's Pacific coast.
Perhaps the most remarkable measure of the earthquake's power is where its effects were felt last. The tsunami it generated traveled westward across the Pacific and struck the coast of Japan, producing runups of tens of meters -- a journey of more than 14,000 kilometers from the epicenter. Seismologists have used these Japanese records, along with comparison to the better-documented 1974 Peru earthquake, to estimate the 1687 event's magnitude at approximately 8.7. The coastal communities of Peru have rebuilt many times since -- the 2007 Pisco earthquake would devastate the same region three centuries later -- but the 1687 event remains one of the most powerful earthquakes in South American recorded history, a reminder that living along a subduction zone means living on borrowed geological time.
Located at 15.22S, 75.92W along Peru's southern coast near Pisco and Ica. The epicentral region is a long stretch of coastline visible from 10,000-15,000 feet AGL, where the flat desert plain meets the Pacific. The modern city of Pisco sits near the site of the colonial port destroyed by the tsunami. Nearest airport: Pisco / Capitan FAP Renán Elías Olivera Airport (SPSO). Lima's Jorge Chávez International Airport (SPJC) is approximately 230 km to the northwest. The Paracas Peninsula is visible to the southwest.