4.1 Earthquake Shakes Southwest of Downtown

For the second time this week, an earthquake has struck an area 10 miles southwest of downtown near unincorporated Lennox. The 4.1 shaker struck at 3:49 p.m. this afternoon, followed by a 2.5 aftershock at 3:51 p.m. On Sunday evening, a 4.7 rattler shook up in the same area and earlier this month, a 4.4 struck in the Santa Monica Mountains. The Los Angeles Fire Department is reporting no immediate damage, but per policy, they must enter into "Earthquake Emergency Mode" and "actively survey" the city by ground and air to make sure. UPDATE: Officials at Caltech are saying this was an aftershock from Sunday's 4.7 quake.