SAN DIEGO (FOX 5/KUSI) -- After a magnitude 5.2 earthquake rattled Southern California Monday morning shortly after 10 a.m., the National Weather Service immediately issued an alert about whether a tsunami would follow. "Tsunami NOT expected," NWS posted on Twitter, formerly X, around 10:15 a.m. 5.2 magnitude earthquake shakes Southern California According to the U.S. Geological Survey, an earthquake may trigger a tsunami depending on several factors, including the magnitude. Magnitudes below 6.5 are "unlikely to trigger a tsunami," according to USGS. Destructive tsunamis usually happen following quakes that are at least a magnitude of 7.6. In the case of a tsunami, the county has evacuation maps for coastal cities. Find them below: Carlsbad Chula Vista Coronado Del Mar Encinitas Imperial Beach National City Oceanside San Diego Solana Beach Click here to learn more about what to do in the event of a tsunami in the San Diego area. San Diego County lies right next to the Pacific Ocean and right along the San Andreas Fault, one of the largest and most active fault zones in the world. It was along this fault zone where the state’s most powerful recorded quake and perhaps the most significant earthquake of all time, the Great 1906 San Francisco Earthquake, took place. Monday's earthquake happened just four days before the 119th anniversary of that major seismic event. ...read more read less