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Abstract
GIS Application for Liquefaction Hazard Mapping in Ventura County, California
Track: EMS, Fire, Disaster Management
Author(s): Christopher Hitchcock, Scott Lindvall, Lynne Kada
This step-by-step GIS approach for mapping hazards from ground failure caused by liquefaction during large earthquakes emphasizes integration of original digital geologic mapping with numerous sets of base data and subsurface data. Digital quaternary geologic maps, shallow groundwater contour maps, and liquefaction hazard maps were constructed at a scale of 1:12,000 for all alluviated areas within Ventura County, California. This map database, currently being incorporated into the County of Ventura's County-wide GIS, is a County-wide resource for mitigating potential risks to critical lifelines, petroleum pipelines, and other facilities supporting the large population and active oil industry in the Oxnard-Ventura area.
Christopher Hitchcock
William Lettis & Associates, Inc.
1777 Botelho Drive, Suite 262
Walnut Creek , CA 94596
USA
Phone: 9252566070
Fax: 9252566076
E-mail: hitch@lettis.com
Scott Lindvall
William Lettis & Associates, Inc.
25050 Avenue Kearny
#108
Valencia 91355
USA
Phone: 6617754990
Fax: 6617754992
E-mail: lindvall@lettis.com
Lynne Kada
County of Ventura (retired)
3030 Foothill Road
Ventura 93003
USA
Phone: 8056434842
Fax: 8056537573
E-mail: kada@visto.com