weather August 16, 2020 4:51 pm Weather Lab: What Does Magnitude Mean in Describing Earthquakes? In the second part of a two-part lesson on earthquakes, Anthony Yanez explains what “magnitude” means when describing earthquakes. US & World Videos 3:43 Despite encampment's clearing, safety concerns linger at UCLA 0:45 Lakers fire head coach Darvin Ham 1:04 Metro warns of possible delays due to sickout 0:31 Long spear found at murder scene in Santa Ana 3:12 First Alert Forecast: Rain this weekend