Recurrent movement on California's Imperial Fault caused right-lateral fault offset at Interstate 8.
Notes on verification
Confirmed by USGS official media caption, Caltech SCEDC data, Wikipedia, and independent Flickr photo documentation. Multiple consistent, independent sources with no contradictions.
Sources
- What is the relationship between faults and earthquakes ... - USGS.gov (usgs.gov)
- https://www.flickr.com/photos/38037974@N00/4532014041 (flickr.com)
- https://scedc.caltech.edu/earthquake/imperial.html (scedc.caltech.edu)