Solomons quake damages homes: WorldVision

An earthquake in the Solomon Islands has damaged a hospital, church and other buildings including the World Vision office, the aid agency says.

Hundreds of people in remote parts of the Solomon Islands have had their homes damaged or destroyed by a powerful magnitude 7.7 earthquake that struck on Friday, an aid organisation says.

There have been no deaths reported from the quake, which also caused some small tsunami waves in the Solomon Islands and other Pacific islands.

Speaking from the capital Honiara, Suzy Sainovski, World Vision's Pacific East Timor spokeswoman, said it has been hard to get a full assessment from some more remote communities, some of which don't have mobile phone coverage.

"There are some initial reports that 3000 people have been affected," Sainovski said. "Some of these are traditional houses that are on stilts, and made with vegetation."

The quake struck near the island of Makira. Sainovski said in the town of Kirakira on the island, the quake damaged a hospital, a church and other buildings including the World Vision office. She said 20 people were evacuated from a hospital.

She said the quake had caused some power failures throughout the country.

Micha Maghe, World Vision's water sanitation and health project coordinator in Kirakira, said the quake had been terrifying.

"When I got outside I could hear children crying, people shouting," she said in a statement. "We assembled at a school and I saw people moving towards high ground. ... People just panicked and were frightened."

Sainovski said there continued to be a number of aftershocks and power cuts.

Tsunami warnings for several Pacific islands were cancelled on Friday after authorities determined the earthquake didn't pose a broad tsunami threat.

The region was later hit by a 6.9 aftershock.

The US Geological Survey said the new quake hit about 200 kilometres southeast of Honiara and about 68km from Kirakira.

The epicentre was relatively deep at 48km below the surface. Deeper quakes generally cause less damage on the ground.