An earthquake registering 6.4 on the Richter scale struck off the Indonesian resort island of Bali on Saturday morning, triggering panic among tourists and residents.
At least seven people were injured, most of them with broken bones, Rusyam Pakaya from the Health Ministry's crisis centre said. He said no deaths had been reported.
Residents and visitors ran out of their homes or hotels in panic when the quake struck Indonesia's most popular tourist destination at 6:06 am. (2306 GMT Friday).
The quake's epicentre was in the Indian Ocean, about 101 km southeast of Nusadua on Bali, Indonesia's National Meteorology and Geophysics Agency said.
It occurred 36 km beneath the seabed, but the quake did not trigger a tsunami. It was the second strong earthquake to jolts Indonesia within several hours.
Another 6.4-magnitude quake struck eastern Indonesian islands on North Maluku province about five hours earlier late Friday. There were no reports of injuries or damage.
Indonesia, the world's largest archipelago nation, sits along the Pacific Ocean's Ring of Fire, where the meeting of continental plates causes high volcanic and seismic activity.
On September 2, a powerful 7.3-magnitude earthquake struck West Java province, killing more than 70 people and leaving dozens of others missing. Hundreds of others were injured and tens of thousands of homes were damaged.
A major earthquake and subsequent tsunami struck in December 2004, leaving more than 170,000 people dead or missing in Indonesia's Aceh province and half a million people homeless.