LANDSLIDE: LA JOLLA, CA

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LANDSLIDE LA JOLLA, CA

• OCTOBER 3, 2007

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LANDSLIDE

• The 15 meter-wide-slide (50 yards) happened on
  Wednesday morning, October 3rd.
• It was caused by the instability of the hillside
  slopes,
• Not excessive water from rain or a broken water
  main, and
• Not ground shaking from an earthquake.

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LANDSLIDE

• The area was known to be geologically unstable
  and landslide prone as the result of a
  geologically old earthquake.
• Landslides had occurred in 1961 during
  construction of the homes and again in 1989 and
  1994
• City officials had issued a warning two weeks
  before and again on Tuesday night before the
  slide occurred on Wednesday.

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LANDSLIDE CAUSED BY UNSTABLE SLOPE LA JOLLA, CA
OCT 3, 2007
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LANDSLIDE OCTOBER 3, 2007
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LANDSLIDE LA JOLLA, CA
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LANDSLIDE OCTOBER 3, 2007
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LANDSLIDE OCTOBER 3, 2007
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IMMEDIATE SOCIETAL IMPACTS OF THE LANDSLIDE

• 110 Homes valued at 1 million or more were
  affected.
• The local road system was blocked by dirt and
  debris.
• Local power outages.
• Local evacuations.
• An urgent need for expensive local site
  remediation and stabilization.