John...thanks...this page may be very useful in my work...if it is capable of using a reference frame that I designate....like, Santa Cruz Island, or Malibu, or whatever. I don't have the time or expertise to make velocity fields on my own with respect to local references. John and All: to detect faults that may have strain accumulation, generally some of the fastest faults are modeled out, like the San Andreas...because they swamp the velocity field. Also, changes in ground water level and post-earthquake effects tend to swamp the velocity field in the Los Angeles area. So, it might be useful to have some interactive map system with a choice of modeled velocity...by different groups, including Argus et al (e.g., 2005 JGR). But, I guess the raw data should be good to look across wide areas, like how fast is Santa Barbara Channel closing....(the east channel was 6 or 7 mm/yr on old data=pretty fast.
Chris