Tremors could be felt around north Los Angeles Saturday morning when a string of small earthquakes hit the area, the largest a magnitude 3.1-earthquake, according to the U.S. Geological Survey.

The temblors struck northwest of Granada Hills within the space of 10 minutes, according to the agency's preliminary earthquake reports. The 3.1-magnitude earthquake, reported at 7:54 a.m., could be felt as far away as Carson.

The LA Fire Department found no significant damage or injuries in a 470-square mile survey following the earthquake.

Two smaller earthquakes preceded the largest temblor: a 2.1-magnitude shaker at 7:46 a.m. and a 2.8-magnitude earthquake (initially reported as a 2.7-magnitude) at 7:52 a.m., both in the same area, according to the USGS.

The earthquakes were reported between Granada Hills and Santa Clarita, the USGS said.

The Los Angeles Fire Department will go into "earthquake mode" to survey the area, spokesman Erik Scott said, but no damage was initially reported.

As a precaution, LAFD trucks were rolled out of station houses, where garage doors can jam or stall if a major quake occurs. Seismologists routinely give a 10 percent chance of a major shaker following what turns out to be a foreshock.

“You can't predict, but you can prepare," Scott said as a reminder to residents in a post on the LAFD Facebook page.

More than 400 people sent responses to the agency's "Did You Feel It" map for the 3.1-magnitude shaker.

City News Service contributed to this report.