An early-morning earthquake at sea has knocked out power and toppled rock walls across the US state of Hawaii but there are no reports of deaths.
US scientists recorded the 6.3 quake at 0707 (1607 GMT) six miles (10km) south-west of the coastal town of Puako on the state's southernmost Big Island.
There was "no report at all of any fatality", Governor Linda Lingle said.
A US scientist said there was no risk of a tsunami but "significant wave activity" in Hawaii.
The quake was felt as far as 150 miles (240km) away to the north-west on the island of Oahu where some people were trapped in lifts.
Boulders fell on highways, rock walls fell down and television sets were knocked off stands, Governor Lingle said.
Don Blakeman, a geophysicist at the US National Earthquake Information Center, said there was no risk of a Pacific-wide tsunami.
"I wouldn't expect anything catastrophic," he said. "But you never know about these things."
Liz Fischer, a BBC News website user from Paia Hawaii, said she woke to find her wood-frame house swaying and stood outside as aftershocks arrived.
However the damage seemed minimal apart from things being thrown off shelves.
Alex Davidson wrote from Kailua-Kona to say that as someone who had long lived in San Francisco he could say that the Hawaian quake was "one of the biggest" he had experienced.
But there had been little damage to his house, he added.
Hatched69 said:(...)
Here's a good question, though.... What's the chances of N. Korea's nuke tests setting off the chain of earthquakes we've had lately? (Japan, Alaska, etc.)
joyboytoy79 said:I'm not a sizemologist, by any means, but i highly doubt this would have been caused by any nuclear testing. For one thing, nobody has noticed any changes in radiation levels in NK the area, casting serious doubt on whether NK's claims are valid. Furthermore, I would surmise that a nuclear explosion large enough to cause tectonic repercussions would be easily detectable.
joyboytoy79 said:sizemologist
rob_just_rob said:If there's one anywhere, there's one here!
HickBoy said:I got a message from Sorcerer saying that he's OK...