SAN DIEGO (CNS) - Although a major earthquake along the Rose Canyon Fault in San Diego County is not imminent, researchers found that it produces powerful earthquakes more frequently than previously believed.
The Rose Canyon Fault runs alongside the northern San Diego County coast, comes inland around La Jolla, extends under downtown San Diego and winds up offshore again off Imperial Beach.
San Diego State University scientists determined that the system generates a 6.5- to 6.8-magnitude earthquake about once every 700 years, refuting earlier research that indicated that such quakes occur every 1,000 to 1,500 years, The San Diego Union-Tribune reported. Prior to 1990, the Rose Canyon Fault was believed to be inactive.
"We could see the history of ruptures in the soil of Old Town, and that told the story,'' doctoral student Drake Singleton said.
The researchers also found evidence at a site in Old Town that the fault has produced at least two additional quakes in the magnitude 5.0 to 6.0 range in recent centuries. Temblors of that magnitude likely wouldn't break the surface of the ground, but could cause liquefaction in San Diego and Mission Bays, according to the Union-Tribune.
Last fall, Singleton and Seismologist Tom Rockwell dug a trench on the Presidio Hills Golf Course and studied the sediment for traces of past earthquakes. They found that a major quake had occurred before the Mission San Diego de Alcala was founded in 1769, according to the Union-Tribune.
Their initial results were submitted as an abstract to the Geological Society of America.
Former Kearny High School baseball star Alan Trammell was voted Sunday into the National Baseball Hall of Fame, ending several years of near misses.
The San Diego County Office of Education and local school districts monitored fire, winds, and utilities throughout the weekend with several announcing Monday school and district closures on Sunday.
All evacuation orders for the Lilac Fire were lifted Sunday after crews managed etch fire lines around 60 percent of the blaze and reach 75 percent containment.
A dog who was injured during a pursuit in Valley Center is finally home. Sheriff's deputies say a driver in a stolen car tried to run them down, so they opened fire hitting the dog named Catalina in the leg. The pit bull-mix was taken to the Carlsbad Department of Animal Services where she's been recovering. On Sunday, she was reunited with her owners, after they discovered where she was.
An adorable holiday parade full of our four-legged friends took place Sunday. Holiday cheer was unleashed in the Gaslamp for the San Diego Union Tribune's annual holiday pet parade. Pets brought their A-game for the chance to win some fun prizes. Chopper the Biker Dog rode in on his motorcycle while another pup came dress like a mermaid. This was the 10th year the newspaper has hosted the fun-filled parade.
Emergency crews are responding to reports of a small aircraft that crashed into a house causing a fire in Clairemont.
The clock is ticking down until the city council takes up the issue of short-term vacation rentals this week.
A man was killed in a confrontation with police officers after he broke into a home in Point Loma on Sunday, San Diego police said.
Three people were injured, one critically, in a structure fire in Clairemont Mesa early Sunday, according to authorities.