Week 6 - San Bernardino Geology

Rogers, T. (1967). Geological Map of California. Retrieved from: ftp://ftp.consrv.ca.gov/pub/dmg/pubs/gam/GAM_014_San_Bernardino/GAM_014_Map_1967.pdf

I actually live in San Bernardino county, specifically in the city of Redlands, California. In the photo of the Geological Map above, Redlands falls in the teal square. So far, in the past 10 years that we've been living here, we've been fortunate enough to not experience any major earthquakes. However, there's a common saying here in California that we're all waiting for "the Big One" (the big earthquake).

Matti, J., Morton, D., Cox, B., and Kendrick, K. (2003). Geological Map of Redlands. Retrieved from: https://pubs.usgs.gov/of/2003/0302/pdf/red_map.pdf

This map is a specifically of the city of Redlands. The teal circle is more or less where I live and the red is downtown. Redlands is a valley between the San Bernardino mountains to the North, and Redlands foothills to the South. According to the geological map, the white and yellow areas are very young, wash deposits. The pinks are old deposits.

What I found interesting is that there are faults here that I didn't know existed. The Banning Fault runs right through Redlands, between my home and downtown. Other faults nearby include the Loma Linda Fault and the San Jacinto Fault.

For my first question, I'd like to know what kind of faults are these? Convergent, Divergent, or Transform?

Second, I'd like to know how these faults relate to the San Andreas Fault. I thought the only fault line was the San Andreas fault, so how are these other faults formed? Are they just local? Are they Convergent, Divergent, or Transform in relation to the San Andreas Fault?

Lastly, I'd like to know how the sediment is deposited in this area. Some sediment areas were noted as wash deposits. I assume the only way this is possible is by rain water erosion.