Capable fault
Water
An active fault that is judged capable of producing macro-earthquakes and exhibits one or more of the following characteristics:
(1) Movement at or near the ground surface at least once within the past 35,000 years.
(2) Macroseismicity (3.5 magnitude Richter or greater) instrumentally determined with records of sufficient precision to demonstrate a direct relationship with the fault.
(3) A structural relationship to a capable fault such that movement on one fault could be reasonably expected to cause movement on the other.
(4) Established patterns of microseismicity that define a fault, with historic macroseismicity that can reasonably be associated with that fault.