This week's tremor stemmed from most harmful mistake. Listed below's what to understand - NBC Los Angeles

.Recently's quake arised from most detrimental error. Here's what to understand NBC Los AngelesSeismologist warns of increasing earthquake activity in Southern California KTLA Los Angeles4.4 quake attacks LA County, shakes buildings and also shakes nerves across SoCal ABC7 Los AngelesWatch: Measurement 4.4 earthquake captured in the course of online program on ESPN CNN.