A well-photographed portion of the Ridge Route, known as the Callahan Line Change, is now a part of the Virtual Tour of the Ridge Route. This is a section that had become somewhat obscure because of later freeway construction. For more detailed information –
Category Archives: Castaic
M 3.5 near Castaic, CA – Updated
This morning (2/21/2020) at 5:42 am, a small earthquake struck the Castaic area north of Los Angeles. Just looking at the maps, it seems near the San Gabriel Fault but it is a somewhat complex area. It was also a very deep earthquake as they go, 18.1 km. Shaking was felt in a wide area but wasn’t very strong.
For more information, check out the USGS Summary Page of the event.
https://earthquake.usgs.gov/earthquakes/eventpage/ci39079535/executive