Ground Deformation Caused during the October 17, 1989 Loma Prieta Earthquake, Santa Cruz County, California
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Original JPG File2213 × 3324 pixels (7.36 MP) 7.4 in × 11.1 in @ 300 PPI |
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Screen533 × 800 pixels (0.43 MP) 1.8 in × 2.7 in @ 300 PPI |
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Resource ID
12243
Resource Type
Photo
Availability
Public
UGS Program
Hazards
Title
Ground Deformation Caused during the October 17, 1989 Loma Prieta Earthquake, Santa Cruz County, California
Author
Allison, M.L.
Publisher
Utah Geological and Mineral Survey
Date
December 1989
Accession Number
S1047
USGS 7-1/2' Quadrangle
Los Gatos, Laurel
County
Santa Cruz
State
California
Keywords
earthquake, paleoseismology, surface fault rupture
Photo Type
Scanned Positive
Photo Date
1989-12
Camera Make / Model
LS9000 Slide
Resolution (dpi)
2500
Image Size
2213x3324
Original Filename
S1047.jpg
Abstract / Description
R-131, Slides S1043 to S1052 were donated by M. Lee Allison and taken December 1989. Shows various types of ground deformation (Cracks, fissures and scarps) caused during the October 17, 1989 Loma Prieta Earthquake. There is considerable controversy about the process forming these features and whether or not they are 1) Tectonic in origin 2) Related to shattering caused by intensified ground shaking in certain areas such as ridge tops, or 3) Related to slope failure. Regardless, lack of distinct surface rupture along mapped fault traces for such a large magnitude earthquake(Ms=7.1) and ground deformation off of mapped fault traces where mitigation techniques are not practiced.
Marker lat / long: 37.127834, -121.948624 (WGS84)