NANJING - A total of 53 aftershocks have been detected as of 7:30 am Saturday after a 4.9-magnitude earthquake jolted East China's city of Yangzhou Friday night, local officials said.

Most of the aftershocks were of a lower scale, with only four measuring between 3- to 4-magnitude, said Zhang Zhenya, deputy director and spokesman for the Jiangsu provincial earthquake bureau.

Seismic experts predict that a devastating earthquake is unlikely to occur, according to Zhang.

Friday's earthquake hit Yangzhou at 8:11 pm, according to the China Earthquake Networks Center.

The quake left one person dead and another slightly injured as of Saturday noon, Zhang said.