The earthquake struck between 4:30 and 4:45 in the morning, when most of the Venezuelan coast was still asleep. Its epicenter lay offshore, in the Caribbean Sea near the Cariaco Basin, somewhere off Miranda State. The San Sebastian Fault -- a submarine fault running east-west along the northern Venezuelan coast -- ruptured across a distance estimated at 220 to 270 kilometers, with an average slip depth of 15 kilometers. The shaking reached Modified Mercalli intensity IX across a 3,560-square-kilometer zone, a vast swathe of the north-central coast where buildings crumbled and the ground itself came apart. It happened on the feast day of San Narciso, and the earthquake has carried the saint's name ever since.

Along the coast, the earthquake did what earthquakes do to alluvial ground: it liquefied it. At the port of El Rincon in Barcelona, built on river deposits from the Neveri, cracks longer than 300 meters opened in the earth. A 400-square-meter section of ground subsided as the soil spread laterally, collapsing beneath its own weight. The Neveri River narrowed by more than two meters as its banks shifted, and its water level rose ominously. Saline wells surged upward by several meters, their water sloshing violently. Along the Unare River in Anzoategui, the effects were stranger still. Riverbanks slumped into the water. Deep fissures split open, ejecting mud and water like wounds. Seiches formed along the river channel, sending waves seven meters beyond the banks. One man, taking a bath in the river at the moment the earthquake struck, was caught in the sudden surge but managed to escape.

The seaside cities bore the worst of it. Macuto, Guarenas, and Guatire suffered severe destruction. The Los Roques archipelago, far out in the Caribbean, reportedly had the highest number of victims -- a grim distinction for a cluster of small islands. Twenty-five people died in Guarenas alone. Across six states -- Anzoategui, Aragua, Carabobo, Distrito Capital, Miranda, and Vargas -- landslides tore down hillsides and liquefaction swallowed foundations. Barcelona, Onoto, Carenero, Clarines, Puerto Cabello, and more than a dozen other towns reported damage ranging from slight to devastating. The total death toll reached over 140, with at least 50 injured. These numbers seem modest for an earthquake of this magnitude, a disparity explained by the offshore epicenter and the relatively low population density of the affected coast.

Before 1900, Venezuela studied its earthquakes through memory and written accounts. The San Narciso quake changed that. Within weeks, the country's first seismic instruments arrived and were installed at the Cagigal Observatory in Caracas, operational by early 1901. The earthquake was the catalyst for Venezuelan seismology as a scientific discipline. Researchers would spend the next century studying its rupture zone, which sits between the fault segments that produced the 1812 and 1853 earthquakes. Ocean-bottom surveys eventually found young seafloor deformation and fault scarps confirming where the 1900 rupture had torn through the seabed. The earthquake arrived at the close of the 19th century like a final, emphatic period on an era. It was both the last great earthquake of its century and the first to be captured, however crudely, by instruments that could translate the Earth's violence into data.