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Imperial California Earthquake, October 1979
Page:  Aerials | Ground | Close-ups | Other Earthquakes

Picture of California Earthquake

Surface rupture: single straight break along the Superstition Hills Fault.

Picture of California Earthquake

Surface rupture: compression ridge connecting two left-stepping echelon cracks. The ridge consists of arched clods of delicately cemented soil a few millimeters thick. The axis of the arch parallels the ruler.

Picture of California Earthquake

Surface rupture: area along a single straight break along the Superstition Hills Fault shown in photo jce00017. This photograph shows 7 millimeters of right slip.

Picture of California Earthquake

North-south-trending crack in the sixth floor just east of the first interior row of columns (from the east face) of the Imperial County Services Building in El Centro.

Picture of California Earthquake

Scarp at the boundary of a trough feature at site 18 west of Orchard Road (location shown on Plate 1, Professional paper 1254), caused by the settlement of fill over a buried drain line.

Picture of California Earthquake

Ground-failure effects at site 17 near the intersection of King Road and Orchard Road (location shown on Plate 1, Professional paper 1254). Overlapped canal lining near the east end of the disturbed zone. Note the sand boil on the bottom of the canal.

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Credits: All earthquake photographs courtesy of the U.S. Geological Survey. YupRocks makes no copyright claims on these photographs; they are public domain and may be freely distributed.
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