Magnitude 7.7 earthquake strikes off Indonesia's coast, killing at least 47 and toppling buildings

MAUMERE, Indonesia (AP) — A powerful magnitude 7.7 earthquake struck off the coast of Indonesia early Saturday, killing at least 47 people, collapsing buildings and causing panic in a region prone to deadly quakes. Authorities said dozens more residents were injured and warned that the death toll would almost certainly rise.

Authorities issued a tsunami warning and urged coastal residents to move to higher ground, but later lifted the warning when Indonesia's meteorological agency said monitoring showed no significant sea-level changes that posed a threat to coastal communities. Some smaller tsunamis were reported.

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The U.S. Geological Survey said the quake hit eastern Indonesia's Flores region at a depth of 10 kilometers (6 miles) at 5:58 a.m. local time. Its epicenter was 68 km (42 miles) north-northwest of the city of Ende in East Nusa Tenggara province.

The meteorological agency said the quake was followed by at least 235 aftershocks, with the largest recorded at magnitude 6.2.

The agency's sea-level monitoring stations acknowledged some small tsunamis reached coastal villages in Manggarai and East Manggarai regencies. Videos obtained by The Associated Press showed the coastal village of Riung in Ngada regency blanketed in mud and debris after what the agency described as a 1.61-meter (5.3 feet) tsunami. Fishing boats were stranded ashore, infrastructure damaged, and homes surrounded by sediment left by receding waters.

Waves measuring 0.94 meters (3.1 feet) were observed in Maurole, Ende Regency.

Tsunami waves exceeding 0.5 meters (1.6 feet) were detected in Bulukumba, South Sulawesi, and Sape in Bima Regency.

A strong, land-based earthquake of 6.9 magnitude hit North Sumatra province in western Indonesia on Saturday afternoon, according to the USGS. It struck 172.5 kilometers (107 miles) beneath the earth's surface, meaning it was too deep to cause significant damage or casualties, Indonesian authorities said.

East Nusa Tenggara Police Chief Rudi Darmoko said power outages hampered the spread of information about the impact of the earthquake in cities and villages, complicating search and rescue efforts.

"We are continuing to collect reports of damage and casualties, but there are communication disruptions," Darmoko said. He said quake-triggered landslides in Ende regency blocked the Trans-Flores highway, a roughly 700-kilometer (435-mile) paved mountain road spanning Flores Island, from Labuan Bajo to Larantuka.

The head of the National Disaster Management Agency, Suharyanto, said rescuers have recovered at least 47 bodies, mostly in Sikka, Manggarai and East Manggarai, and at least 50 people were taken to hospitals.

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Suharyanto, who like many Indonesians uses a single name, said the quake flattened at least 157 houses and damaged nearly 200 more, forcing about 2,000 villagers to abandon their homes and move to temporary shelters.