Panama Records More Than 200 Aftershocks After Magnitude 7.7 Quake

Panama has recorded more than 200 aftershocks since a magnitude 7.7 earthquake struck the Azuero Peninsula on 9 October, according to national and international seismological tallies. The government declared a national state of emergency over the weekend as damage assessments continued across central provinces.

The main shock occurred at 17:56 UTC (12:56 p.m. local time) with an epicentre roughly 40 kilometres from Tonosí in Los Santos province and about 60 kilometres from Santiago in Veraguas. The U.S. Geological Survey initially reported a higher magnitude before revising it to 7.7. Depth was shallow, around 12 kilometres. The quake was felt as far as neighbouring Colombia. A brief tsunami threat was issued and later lifted. Tocumen International Airport in Panama City suspended operations temporarily before reopening the same afternoon. The Panama Canal continued to operate.

Strong aftershocks followed quickly. A magnitude 6.6 event struck west of the main rupture later on 9 October, and a magnitude 6.0 occurred early on 10 October near La Tronosa. The USGS catalogued dozens of events above magnitude 4 in the first 33 hours; Panama’s national network recorded more than 100 smaller tremors in the same period. By 12 October local counts exceeded 200 aftershocks. The USGS aftershock forecast indicated a roughly 50 percent chance of another magnitude 6 or larger within a week of the main shock.

Civil-protection authorities reported no confirmed deaths. Approximately 27 to 30 people were treated for minor to moderate injuries. Damage was concentrated in Veraguas, Herrera, Coclé and Los Santos provinces. Roughly 420 homes and a similar number of public schools were affected, along with several hotels, churches and bridges. Power outages occurred in six provinces. Some communities were temporarily cut off by damaged roads. Residents in towns such as Chitré described sleeping outdoors because of continued shaking. President José Raúl Mulino mobilised government agencies and cautioned against alarm while assessments of remote areas continued.

The earthquake is the strongest recorded in that part of Panama since at least 1951. It occurred along a plate-boundary fault on the Pacific Ring of Fire. Early USGS estimates placed possible economic losses in the range of 1 to 10 percent of Panama’s GDP, with some external assessments suggesting regional losses could exceed one billion dollars. Full damage surveys in rural districts are still incomplete.

The continuing aftershock sequence is the immediate operational concern. While the frequency of large events typically declines over time, damaging shocks can occur days or weeks later. Authorities have kept emergency measures in place and are distributing aid to affected households. For residents near the epicentre the practical reality is repeated shaking, temporary displacement from damaged houses, and uncertainty about when the sequence will subside enough for permanent repairs to begin.

The verified record so far is the main-shock magnitude and location, the absence of confirmed fatalities, the scale of housing and infrastructure damage in the central provinces, the number of aftershocks, and the declaration of a national state of emergency. Further updates will depend on completed structural inspections and any additional strong aftershocks.