California officials have mapped a new stretch of an earthquake fault through northeast Los Angeles — a fault that could cause major damage in the heart of the metro area.
The Raymond fault has long been known as a potentially dangerous fault for Los Angeles and the San Gabriel Valley, and caused the magnitude-4.9 Pasadena earthquake in 1988, said Tim Dawson, senior engineering geologist with the California Geological Survey.
But it’s a fault that can pack a punch. That 1988 earthquake literally threw seismologist Lucy Jones out of bed. “The wave was coming up at me,” Jones recently recalled. “It was the most scared I have been in earthquake shaking.”
And it’s capable of a much worse earthquake. It could cause an earthquake as large as a magnitude 7. The Raymond fault runs from northeast L.A. through South Pasadena, Pasadena, San Marino, Arcadia, Monrovia and the unincorporated area of East Pasadena. For stretches, the fault runs alongside parts of Eagle Rock, York and Huntington boulevards, and under a stretch of the 110 Freeway in South Pasadena.