the san andreas fault line was discovered in 1868.
the san andreas fault line was discovered in 1868.
when was the san andreas fault line discovered?
1868
the fault was first identified in northern california by uc berkeley geology professor andrew lawson in 1895 and named by him after the "laguna de san andreas", a small lake which lies in a linear valley formed by the fault just south of san francisco. eleven years later, lawson discovered that the san andreas fault stretched southward into southern california after reviewing the effects of the 1906 san francisco earthquake. large-scale (hundreds of miles) lateral movement along the fault was first proposed in a 1953 paper by geologists mason hill and thomas dibblee. this idea, which was considered radical at the time, has since been vindicated by modern plate tectonics.
san andreas fault
section::::observatories.:san andreas fault observatory at depth (safod).









































the san andreas fault observatory at depth (safod) consists of a main borehole that cuts across the active san andreas fault at a depth of approximately 3 km and a pilot hole about 2 km southwest of san andreas fault. data from the instruments installed in the holes, which consist of geophone sensors, data acquisition systems, and gps clocks, as well as samples collected during drilling, will help to better understand the processes that control the behavior of the san andreas fault.









































section::::data products.
earthscope