Thailand's Meteorological Department Director-General Supalerk Tansriwattanawongse said Thursday that 11 aftershocks happened during Wednesday night after an earthquake measuring 6.1 on the Richter scale hit Laos in the afternoon.

Supalerk was quoted by local news group The Nation as saying that the aftershocks were measured at 4.7 to 4.9 on the Richter scale.

On Wednesday at about 15:56 p.m. (0856 GMT), an earthquake measuring 6.1 on the Richter scale rocked northern Laos. The epicenter was determined to be located at an open field in northern Laos which is some 61 kilometers from Thai northern district of Chiang Kong.

Supalerk said the aftershocks did not cause any damage and Thai people did not fell them. He said his department was still monitoring the situation.

"We believe that there would be more aftershocks on Thursday but people would not feel them," the meteorological chief was quoted as saying.

"In fact a 5.3 Richter earthquake happened on May 15 at 9.30 p. m. (1430GMT)," he said.

Source: Xinhua