In Califonia cause of the ST Andreys fault line where the PACIFIC PLATE and the NORTH AMERICAN PLATE slide pass each other.
Thus, my ballpark estimated cost (basically for the AT&T conference call, $50 witness fee, $150 process server's fee; $400 deposition transcript, $25 for copying costs, and about 10 hours of legal work amount to a grand estimated total of about $625 plus 10 hours of legal work.
the average hourly fee for in court testimony for all non medical experts is $ 248 the average hourly fee for in court testimony for all medical experts is $ 555 medical expert witnesses on average earn more than double 124 % more what non medical expert witnesses earn