Geological evidence and its ages show that five events with a recurrence interval 昽f about 1500 years occurred in the middle-late Holocene time,presumably associated with an earthquake of M = 8.

• 用断裂位错距离和位错速率计算的地震复发周期表明,每隔1500年左右的地质事件可能伴随着一次8级地震。