@ridor9th that's a great question! I think I'll google for the answer.
US Geological Svc has great tools and info for all levels.
Here's the beginners section
https://www.usgs.gov/faqs/what-fault-and-what-are-different-types#main-content
Here's the Advanced Faulting section.
https://www.usgs.gov/search
@Bliss My problem is - HOW did they know that stuff?