The mass wasting event happened after ten days of rainfall leading to a shearing of the unstable 35 degree slope. The 1995 landslide had a horizontal length, vertical length, and depth of 120 x 330 x 30 m and covered approximately 10 acres with a volume of 1.3x106 m3. As a La Conchita … This area has experienced two massive landslides in the past decade: March 4, 1995, and January 10, 2005. The La Conchita landslides that occurred in 1995 and 2005 form only a small percent of a much larger landslide complex, according to the geologists. The La Conchita landslide in Ventura County is an example of a deep-seated landslide that has experienced both styles of movement (see Landslide Hazards at La Conchita, California - Open-File Report 2015-1067). La Conchita landslide on January 10, 2005 was a remobilization of a larger slump from 1995. They were principally triggered by _____. The 2005 La Conchita slide in California and the 2014 Oso landslide in Washington were both deadly landslides in residential areas. 1995 and 2005, La Conchita, California: On March 4, 1995, a fast-moving earthflow damaged nine houses in the southern California coastal community of La Conchita. A week later, debris flow … Explore: Play a short video (length 0:19) of the La Conchita, California landslide from 2005 (slide 4). The volume of material moved by the landslide was 2.8 cubic kilometers (0.67 mi 3) . In 1995, after an exceptionally wet winter, the landslide moved tens of meters (tens of yards) damaging nine houses. La Conchita is a small Pacific coastal community that lies between Santa Barbara, CA and Ventura, CA. The La Conchita Landslides of 1995 and 2005 Randall W. Jibson U.S. Geological Survey Golden, Colorado. Have students brainstorm what they know about landslides, whether they’ve ever seen one and what they think causes the debris to suddenly go down a slope (slide 5), before revealing a definition and factors involved in landslides (slide 6 & 7). Wallet said he moved to La Conchita, 70 miles northwest of Los Angeles, from Ventura in search of an easier life. The deadly landslide that killed 10 people and destroyed 30 homes in La Conchita, California last January is but a tiny part of a much larger slide, … The issue is not unique to Oso; in the decade since a landslide killed 10 people in La Conchita, California, that community, too, has continued to grow. These recent landslides spilled over U.S. Highway 101 in the Ventura County community that is located 25 miles south of Santa Barbara. After the landslide, the County posted a warning on each house that La Conchita is a “Geologic Hazard Area” and to “Enter at Your Own Risk.” La Conchita residents, including some of the plaintiffs in this action, petitioned for a writ of mandate to compel the County to … The slope failure buried and killed ten people and affected 14 houses. Santa Barbara County Ventura County Pacific Ocean Santa Barbara Ventura Ojai 1 0 1 1 50 1 50 33 La C onchita C a l i f o r n i a N. ¾180-m-high bluff ¾~350 slslope ¾Monterey Formation in …
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