Magnitude 7.7 Earthquake Strikes Southern Panama with Series of Aftershocks

A magnitude 7.7 earthquake struck southern Panama at 12:56 local time on 9 October, according to the US Geological Survey. The epicentre was about 12 kilometres west-southwest of the remote community of Pitaloza Arriba in Herrera province, at a depth of roughly 13 kilometres. A second strong quake of magnitude 6.6 followed later in the day.

The USGS initially reported a preliminary magnitude of 8.0 before revising the figure. The University of Panama’s Institute of Geosciences recorded a preliminary 7.2. More than 40 aftershocks, several above magnitude 5, continued through the afternoon and evening. Seismologists at the university logged more than 45 events in total.

Residents in Panama City and inland towns left buildings as the shaking hit. Structural damage was reported to homes, roads, hotels, government buildings, churches, and a multi-storey structure in Playa Venao that collapsed onto cars. In Penonomé, roughly 70 miles from the epicentre, a church steeple partially collapsed and other facades crumbled. Power outages affected six provinces. Tocumen International Airport briefly suspended flights before resuming operations. The Panama Canal Authority said the waterway continued to operate normally. The Cobre Panama copper mine also reported normal operations.

Civil protection officials said several people suffered minor injuries. As of the evening of 9 October, no deaths had been confirmed. President José Raúl Mulino ordered resources mobilised to affected areas and visited a hospital in Penonomé where patients had been moved outdoors. The USGS estimated that about 43,000 people lived in zones of severe shaking and that economic losses could reach 1 to 10 percent of GDP, though those figures remain early estimates.

Tsunami warnings were issued for coasts in Panama, Colombia, Ecuador, Nicaragua, Guatemala, Mexico, El Salvador, Costa Rica, and Peru. The National Tsunami Warning Center later indicated that the threat had passed without reported wave damage. The event is part of a series of strong earthquakes that have affected the region in recent months.

Panama sits on the edge of the Pacific Ring of Fire. The main shock and the dense aftershock sequence will keep residents and engineers assessing building stock for weeks. The absence of a high death toll so far appears linked to the relatively sparse population near the epicentre and the shallow but not surface-rupturing depth. Continued aftershocks and the need to inspect bridges, hospitals, and the canal’s supporting infrastructure remain the immediate operational questions.