BANGKOK (AP) — A strong earthquake has shaken wide areas of northern Thailand and Myanmar. There were no immediate reports of injuries or serious damage.

The U.S. Geological Survey said the earthquake measured a preliminary magnitude of 6.0 and was centered 9 kilometers (6 miles) south of Mae Lao, Thailand, and 27 kilometers (17 miles) southwest of Chiang Rai. It said it was located at a relatively shallow depth of 7.4 kilometers (4.6 miles).

The earthquake was felt in Chiang Mai and Bangkok, where it caused curtains to sway, and in Myanmar's largest city, Yangon.