April 25 Alhambra Earthquake

April 25, 1998: A M3.8 earthquake was widely felt in the Los Angeles region in the early evening (06:32 pm PDT) of Saturday April 25. The hypocenter was at 34 deg 4.7 min (north) and 118 deg 5.9 min (west) at a depth of 9 km. This location is 2 miles southeast of Alhambra and 10 miles east-northeast of downtown Los Angeles. This location is close to the aftershock zone of the 1987 Whittier Narrows earthquake (M5.9), but it is not considered an aftershock because that aftershock sequence ended in 1988. There was a small foreshock (M1.8) 4 hours before today's M3.8 event. There was one felt aftershock (M2.7) at 07:56 pm. There are no reports of damage from this light earthquake.