The Los Angeles Physics Teachers Alliance Group (LAPTAG) High School Seismograph Project

Following the damaging 17 January 1994 (4:30:55 AM PST; M_w 6.7) Northridge earthquake, several California State University at Northridge (CSUN) research and outreach projects were initiated in seismology. The Northridge earthquake was located (34°12.80′N, 118°32.22′W; depth 18.4 km) one mile south-southwest of Northridge and 20 miles westnorthwest of Los Angeles. The event was produced by a south-dipping, blind thrust fault (Northridge thrust; also known as the Pico thrust). The earthquake was felt by approximately 12 million people within an area of about 212,000 km² from the San Fernando Valley to Los Angeles. The damage estimate was approximately $20...