A magnitude 4.2 aftershock shakes earthquake-hit area in Ayacucho, Peru

A magnitude 4.2 aftershock rattled the Ayacucho region of Peru on Thursday, August 20, 2026, hours after a significant 7.2 magnitude earthquake struck the area.

The initial earthquake, which occurred at 1:00 PM local time, prompted Peruvian authorities to release a detailed assessment of the damage across several southern localities. The aftershock, recorded at 4:30 PM, had its epicenter 28 kilometers north of Coracora with a focal depth of 108 kilometers, similar to the main tremor, according to the Peruvian Geophysical Institute (IGP).

Luis Vásquez, head of the National Civil Defense Institute (Indeci), reported that the initial earthquake resulted in two people sustaining minor injuries in Coracora while evacuating their homes. He emphasized that there have been no reports of serious health consequences or direct, grave harm to individuals, attributing this to the tremor's depth exceeding 100 kilometers. Indeci continues to monitor the situation for validated information.

Preliminary reports from Indeci indicate damage to eight houses in Puquio, 12 homes and a health center in Puyo, and two residential buildings and an educational facility in San Pedro. In Coracora, five educational institutions were affected, along with landslides on a local hill and in Chancas. An educational institution was also damaged in Cotaruse, with ongoing technical assessments in other areas like Upahuacho.

Infrastructure impacts were also noted in the Ayacucho and Cusco regions. Indeci confirmed damage to three health institutions in Ayacucho. In Cusco, the Regional Hospital and the Palace of Justice building sustained damage. Vásquez cautioned the public against misinformation circulating on social media, urging them to rely solely on official channels for information. Prime Minister Luis Galarreta announced that the Minister of Housing, Construction, and Sanitation would travel to Ayacucho to coordinate assistance efforts.