In Laos, the Foreign Ministry spokesman, Yong Chanthalansy, said by telephone from the capital Vientiane that the earthquake lasted for about 10 seconds.
and another resident of the capital said it was not felt there, 343 kilometers to the southeast.
said there were no initial reports of casualties from the area and that there had been no panic.
In Luang Prabang, several residents contacted by phone described feeling "disoriented" for a period of up to two minutes by the shaking of the earth, while others noticed nothing at all.
No damage was immediately visible in the city.
"We could feel it very strongly here," he