TEHRAN, July 23 (Xinhua) -- A magnitude-5.8 earthquake shook the city of Sirch in Iran's central Kerman province early Monday morning, Iran's Seismological Center reported.

The epicenter was initially determined at the depth of 10 km, 30.365 degrees north latitude and 57.499 degrees east longitude.

As it happened at the small hours, there are yet no reports about possible casualties or property loss. Over 20 aftershocks have been registered so far.

Witnesses said people rushed out of their homes to the streets in panic and they have remained outdoors.

Emergency teams have been sent to the quake-hit region, according to local media.

On Sunday, two moderate quakes of 5.7-magnitude and 5.9-magnitude rattled southern Hormozghan and western Kermanshah provinces successively. The quake in Kermanshah province injured 26 people.