A powerful, 6.3 magnitude earthquake shook northern Afghanistan before dawn Monday, killing at least 20 people and injuring more than 300 others, a health official said.
The U.S. Geological Survey said the quake's epicenter was located 22 kilometers (14 miles) west-southwest of the town of Khulm, and that it struck at 12:59 a.m. at a depth of 28 kilometers (17 miles).
