The discovery of missing links between earthquake faults shows how a magnitude 7.4 earthquake could rupture in the same temblor underneath Los Angeles, Orange and San Diego counties, a new study finds. Such an earthquake would be 30 times more powerful than the magnitude 6.4 earthquake that caused the 1933 Long Beach earthquake, which killed 120 people. The temblor would also have to jolt the adjacent Rose Canyon fault system, which runs all the way through downtown San Diego and hasn’t ruptured since roughly 1650. Scripps The Scripps research vessel New Horizon in 2013 tows equipment helping to map the Newport-Inglewood/Rose Canyon fault zone. Two years earlier, the California Energy Commission directed Edison to evaluate earthquake faults that could affect the power plant.

Source: Los Angeles Times March 09, 2017 13:12 UTC