Deadly 7.7-magnitude earthquake in Indonesia leaves thousands displaced, death toll rises above 50

A powerful 7.7-magnitude earthquake struck Flores Island, Indonesia, on August 15, 2026, killing at least 68 people and injuring over 200. The disaster has displaced 12,800 residents, many of whom are sleeping in makeshift outdoor tents amid nearly 1,600 aftershocks. Toppled health facilities and blocked roads have severely hindered medical relief, forcing doctors to operate in temporary tents. The crisis has revived traumatic memories of a deadly 1992 earthquake and tsunami on the island.

Flores earthquake casualties

• ▪A powerful 7.7-magnitude earthquake struck off the coast of Flores Island, Indonesia, on August 15, 2026, killing at least 68 people.
• ▪The August 15, 2026 earthquake damaged more than 1,300 homes across East Nusa Tenggara, with nearly 250 destroyed on Flores Island alone.
• ▪The August 15, 2026 earthquake in Flores injured more than 200 people, according to Indonesia's National Disaster Management Agency.

Medical response challenges

• ▪The sole physician at the Dampek Health Centre, Dr. Melinda, issued an urgent appeal on August 16, 2026, stating she was unable to cope alone with hundreds of arriving casualties.
• ▪Medical staff in Ruteng had to assemble a temporary tent hospital to treat patients because the main hospital building was damaged in the August 15, 2026 earthquake.
• ▪The Indonesian government plans to build emergency field hospitals in several areas to treat people injured in the August 15, 2026 earthquake.
• ▪Ruteng Regional General Hospital's operating room, delivery room, pharmacy, and laboratory were rendered defunct after the building's roof collapsed during the August 15, 2026 earthquake.

Mass displacement shelters

• ▪By August 17, 2026, the number of displaced people unable to return to their homes on Flores Island had risen to 12,800, according to BNPB spokesman Berton Suar Pelita Panjaitan.
• ▪Nitung Village on Palue Island was completely cut off from aid, electricity, and communication lines for nearly two days after the August 15, 2026 earthquake due to landslide-prone roads.
• ▪The Indonesian Air Force deployed two Hercules transport planes and a Boeing to airlift 13 tons of emergency aid, including food, clothes, clean water, and medical equipment.
• ▪Displaced residents on Flores Island camped in makeshift tents made of tarpaulins and poles, or sought shelter at schools, police stations, and government offices.

Aftershock monitoring sequence

• ▪A separate 5.7-magnitude earthquake struck offshore Flores Island on August 17, 2026, amid the ongoing aftershock sequence.
• ▪Indonesia's geological agency, BMKG, recorded 1,598 aftershocks in East Nusa Tenggara following the August 15, 2026 earthquake.
• ▪The largest aftershock reported in the initial sequence following the August 15, 2026 earthquake reached a magnitude of 6.2.

1992 earthquake trauma

• ▪Flores resident Nurhidayati expressed terror and trauma on August 16, 2026, stating she fled to a hill and did not dare return home due to memories of the 1992 disaster.
• ▪The August 15, 2026 earthquake revived traumatic memories for Flores residents of a 7.7-magnitude earthquake in 1992 that triggered a tsunami and killed approximately 2,500 people.

6 sources