A magnitude 7.7 quake off Indonesia has killed at least 47 people

A powerful earthquake struck off the coast of Indonesia’s Flores Island before dawn on August 15, 2026, collapsing homes, burying villages under landslides and sending residents racing to higher ground as a tsunami warning went out across the eastern archipelago. Rescuers pulling bodies from rubble and mud have pushed the confirmed toll to at least 47 people, and disaster officials expect that number to rise as crews reach communities that were cut off by damaged roads and downed power lines.

The quake hit one of the most seismically active corners of the planet, a region that has been devastated by offshore ruptures before. Search-and-rescue operations were still under way across three regencies as night fell, complicated by power outages, blocked highways and the island’s fractured island-and-mountain geography.

A shallow magnitude 7.7 rupture off Ende

The U.S. Geological Survey measured the earthquake at magnitude 7.7, striking at 5:58 a.m. local time at a depth of about 10 kilometers, with an epicenter roughly 68 kilometers north-northwest of the city of Ende in East Nusa Tenggara province. A rupture that shallow, that close to shore, and that strong transmits violent shaking to the surface with little of the energy absorbed by intervening rock, which is why buildings across Flores buckled almost immediately. The initial jolt was followed by a long sequence of aftershocks, several of them above magnitude 5, keeping rescuers and survivors on edge through the day.

Landslides, a collapsed seminary and a severed highway

The heaviest losses came from collapsing structures and slope failures rather than the sea. Rescuers recovered bodies across the regencies of Sikka, West Manggarai and East Manggarai, including eight people pulled from a landslide that buried the village of Reok, according to an Associated Press account of the disaster. Students and clergy attending morning Mass at a seminary in Sikka fled as an assembly-hall roof caved in, and one priest broke a leg jumping from an upper floor. Landslides in Ende regency severed the Trans-Flores highway, the roughly 700-kilometer paved artery that links towns along the island, hampering the movement of aid. Hospital staff wheeled patients, beds and oxygen cylinders into open courtyards, setting up outdoor treatment areas as a precaution against aftershocks. Local residents described the port terminal’s waiting room collapsing and buildings cracking apart as people ran for open ground, and the shaking was strong enough to spread alarm to Labuan Bajo, the gateway town to Komodo National Park, and to communities in neighboring provinces. With roads blocked and electricity out across much of the affected area, officials warned that the true scope of the damage in remote regencies would not be clear for some time.

A tsunami warning issued and then lifted

In the first hour after the quake, Indonesia’s Meteorology, Climatology and Geophysics Agency issued a tsunami warning for stretches of East Nusa Tenggara and neighboring provinces, urging people to move inland or to ground more than 10 meters above sea level, as regional authorities described the emergency response. Coastal residents in northern Flores and on nearby islands were told to self-evacuate immediately. The agency later lifted the warning after monitoring showed no significant sea-level changes, and Australia’s tsunami center said the mainland and its territories faced no threat. Even without a major wave, the national disaster agency reported that roughly 2,000 villagers in Nagekeo regency abandoned their homes for temporary shelters.

Why the Ring of Fire keeps striking Flores

Indonesia’s vulnerability is structural. The nation of more than 270 million people is spread across some 17,000 islands that sit astride the Pacific “Ring of Fire,” the horseshoe of subduction zones and volcanic arcs where oceanic plates grind beneath continental ones. That same setting has produced catastrophes on and around Flores in living memory. A comparable quake and the tsunami it spawned killed more than 2,500 people on the island in December 1992. In 2018, a magnitude 7.5 quake near Palu on Sulawesi triggered a localized tsunami and soil liquefaction that killed more than 4,400, and the 2004 magnitude 9.1 rupture off Sumatra unleashed a tsunami that killed roughly 230,000 across a dozen countries. Each disaster has reinforced how quickly a shallow offshore quake can turn coastal towns into rescue scenes.

An emerging toll and a slow reckoning

The confirmed count of at least 47 dead reflects only the areas rescuers had reached by nightfall, and later reporting has tracked the figure upward through the day as bodies were recovered, with national outlets citing the rising death toll alongside dozens of injuries and reports of missing residents. Communication disruptions left officials unable to fully assess damage in outlying regencies, and helicopters were deployed to ferry logistics and support possible evacuations across terrain where roads had failed. For survivors, the immediate concern was aftershocks and shelter; for the wider region, the quake was another reminder that the fault systems beneath eastern Indonesia remain among the deadliest on Earth.

This article was produced with AI assistance and reviewed by the Morning Overview editorial team.

More from Morning Overview