A 4.2-magnitude quake rattles San Bernardino at 7:43 p.m., causing concerns with no reported injuries.
Quake details - 9.63 miles deep, epicenter near San Jacinto fault
Tremors felt in Burbank, Santa Fe Springs, Chino, and Fontana highlight quake's widespread impact.
Renowned expert Dr. Lucy Jones provides insights on the quake's proximity to San Jacinto fault.
Southern California's seismic history is explored, highlighting the region's vulnerability to earthquakes.
The earthquake serves as a reminder for communities to review and update their earthquake preparedness plans.