Agung Pramuja, head of the Disaster Mitigation Agency in the West Nusa Tenggara province, told Reuters 32 people were confirmed dead, many from northern and western parts of Lombok. He said the agency was still collecting data on the injured.
A police official in Mataram in central Lombok said at least one person was killed and a rescue volunteer told local media that three others, including a child, were confirmed dead.
The full extent of the damage is still unclear, but local media cited the head of the local disaster mitigation agency as saying that power cuts were affecting most of Lombok island.
The quake was also felt for several seconds in Bali, where people ran out of their houses.
The country’s disaster management agency urged people to stay away from the sea. However, an initial warning of a tsunami was later withdrawn.
Indonesia is an archipelago of thousands of islands, which sit on the Pacific Ring of Fire, a seismic activity hotspot.
The region is often hit by quakes, but many are harmless. However, it is alert to tremors that could trigger tsunamis.
The worst on record was in 2004 after a magnitude 9.3 undersea earthquake triggered a tsunami in western Indonesia, which killed 222,000 people in the area.
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