Junín quake kills five, displaces 300 in central Peru

By Nadia Petrova · 2026-07-20

What happened

A magnitude 5.1 earthquake struck 7 km south of Chupaca, in Peru's Junín region, at 21:24 local time on 18 July 2026, at a depth of 24 km.verifiedVerified Source: andina.pe^[1] The Instituto Geofísico del Perú (IGP) placed the epicentre at coordinates −12.12, −75.28 and issued rapid-response bulletins to the National Emergency Operations Centre (COEN) and INDECI within minutes.^[1]

Julio César Gálvez, head of INDECI's Junín office, said the force of the event was immediately apparent to communities across the central Andes. The shaking was felt well beyond Chupaca province, rippling through highland settlements in the surrounding region.

Casualties and displacement

Luis Vásquez, head of the National Civil Defence Institute, said the toll as of 19 July stood at five confirmed dead and 21 wounded. "Lo que tenemos hasta ahora son cinco fallecidos y 21 heridos que ya han sido validados por el Ministerio de Salud," Vásquez said.^[2] Peru's Ministry of Health validated those figures overnight, adding an official layer of confirmation to counts gathered by emergency teams in the field.

Preliminary INDECI assessments found 48 homes destroyed and approximately 300 people displaced from mountain communities across the affected zone.verifiedVerified Source: adnradio.cl^[2] INDECI warned that both figures were preliminary, with assessments still underway across remote Andean terrain.

Damage and rescue effort

Rescue teams moved through the Chupaca district overnight, working by torchlight in areas where debris had blocked access roads. The 48 homes confirmed as fully destroyed represent only an initial count; field teams had not yet reached all affected settlements by the morning of 19 July 2026.^[2]

INDECI coordinated the emergency response through COEN, mobilising personnel and relief supplies to highland communities. Displaced residents sheltered in public squares and open areas away from structures at risk of further collapse.^[2]

Why Andean communities are vulnerable

Peru's Andean highlands are dominated by adobe and quincha construction, traditional earth-based building materials that perform poorly under seismic loading. Building codes and emergency planning in these communities have struggled to keep pace with modern seismic resilience standards, leaving residents exposed when shallow earthquakes strike beneath densely settled valleys.

A focal depth of 24 km classifies this event as shallow, meaning surface ground motion is amplified relative to deeper events of comparable magnitude. Rural communities built on unstable slopes or unconsolidated soils face compounding risk with every tremor, and the overnight timing of the quake, at 21:24 local time, added to the danger as residents were at home.^[1]

Seismic context

Peru sits on the western margin of South America, where the Nazca Plate subducts beneath the South American Plate at the Peru, Chile Trench. That boundary forms part of the Pacific Ring of Fire, a zone responsible for roughly 85 per cent of global seismic activity.^[2]

Peru records approximately 400 earthquakes of magnitude 4.0 or higher each year, of which around 100 are felt by the population.verifiedVerified Source: adnradio.cl^[2] IGP's National Seismological Centre (CENSIS) monitors seismic activity in real time, feeding data to COEN and INDECI; its bulletin for the 18 July event was transmitted within minutes of the 21:24 strike.

Nadia Petrova

Nadia Petrova covers breaking news and sport for Bushletter. Fast and verb-led, he writes with a news-wire cadence and no patience for PR spin.