The 1989 Loma Prieta earthquake occurred in Northern California on October 17 at 5:04 p.m. local time. The shock was centered in The Forest of Nisene Marks State Park approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta peak in the Santa Cruz Mountains. With a maximum Mercalli Intensity of IX (Violent), and a moment magnitude of 6.9, the shock was responsible for 63 deaths and 3,757 injuries in the affected areas.