LOS ANGELES, May 19 (Xinhua) -- The Los Angeles area was struck by a second moderate earthquake on Tuesday, but there was no immediate report of major damages, the U.S. Geological Survey (USGS) said.

    The magnitude-4.1 earthquake was centered in Hawthorne not far from downtown Los Angeles, with a depth of 7.5 miles (12 kilometers) , according to the USGS.

    The shaker followed a magnitude-4.7 temblor that struck the Los Angeles area Sunday evening, with its epicenter 10 miles southwest of downtown Los Angeles.

    As it did on Sunday, the Los Angeles Fire Department (LAFD) went briefly into "earthquake emergency mode," which requires the nearly 1,100 on-duty LAFD personnel to actively survey the department's 471-square-mile (754-square-kilometer) jurisdiction from the ground and air.

    Less than an hour later, the LAFD resumed normal operating status, according to spokesman Brian Humphrey, who said firefighters in neighborhoods closest to the epicenter reported no significant damage, fires or injuries.

    "We received quite a few phone calls," said Lt. Jim Royer of the Hawthorne Police Department. "As of right now, we've experienced no damage and no cessation of city services.

    In the Hawthorne vicinity, there were sporadic reports of items and pictures knocked off shelves and walls in homes and stores.

    Minor damage from Sunday's quake included shattered front windows at a business in Long Beach, about 40 miles (64 kilometers) south of Los Angeles and items falling off store shelves, according to police and fire officials.

    Sunday's quake, which was felt throughout the Greater Los Angeles area and as far away as San Diego and Riverside counties, marked the strongest quake to strike Southern California since a magnitude-5.5 hit the region last July 29.