Latitude: N 34°18'03"
Longitude: W 118°25'35"
Length: 194.0m
Number of Bench marks: 5
Number of Surveys to 2000: 11
Date of Initial Survey: 13 February 1971
Date of Latest Survey: 29 August 1985
Trespass Permission: None required.
Directions:
In the San Fernando area, take Interstate 210 to the MacClay Street turnoff,
proceed southwest on MacClay Street two blocks to Cometa Avenue; thence right
(northwest) to the intersection of Cometa Avenue and Fernmont Street. The
center point of the array is in the intersection.
Comments:
This short array was established across the surface rupture of the San Fernando
fault following the earthquake of 9 February 1971. Data and interpretations
pertaining to vertical displacements within a year of the earthq uake were
published by Sylvester and Pollard (1975).
Results:
Subsequent resurveys have revealed no significant displacement across the
fault.
Reference:
Sylvester, A.G. and D.D. Pollard. 1975. Afterslip on the Sylmar fault segment,
pp. 227-233, in Oakeshott, G.B., editor, San Fernando, California, earthquake
of 9 February 1971. California Division of Mines and Geology Bulletin 196,
463 p.
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