The records revealed that strike-slip motion occurred over on a vertical fault, and that the total amount of slip varied with depth, with more slip occurring in the shallower regions.
12.
About 60 million years ago during the Paleogene Period a series of earth movements pushed the seabed upwards, creating a high plateau and causing many vertical fault lines in the thick layer of sandstone.
13.
In the offshore, the arch is cut by steep vertical faults interpreted as extensional faults associated with strike-slip movement along an east-west-trending transform fault marking the northern edge of the Arabian Sea oceanic crust.
14.
But applying the method to a vertical fault in Montana, the researchers discovered evidence of six earthquakes, and dated them as occurring about 400, 1, 700, 2600, 7, 000, 20, 300 and 23, 800 years ago.
15.
The Izmit quake is the seventh to have occurred along the North Anatolian Fault since 1939 . The fault is similar to the San Andreas in length, speed of slippage and type _ a " strike-slip " vertical fault with horizontal movement.
