Los Angeles February 9, 2024 3:26 pm Earthquakes: Foreshock, mainshock, aftershock. What's the difference? NBC4 Meteorologist David Biggar explains the differences between an earthquake foreshock, mainshock and aftershock on Friday, February 9, 2024. US & World Videos 2:05 Rapper Lil Jon says ‘Yeah!' to mediation 0:28 Protesters at UCLA had metal pipes, bolt cutters, police say 3:02 Large tree falls in Monrovia, crushing home and van 2:09 Fire burns at RV dealership in Santa Fe Springs 0:34 Bank robbery arrest, man accused of taking hostage
