According to the San Diego Union Tribune article, there were geologists and drillers on site when the failure occurred, apparently installing inclinometers or other instrumentation to monitor the slide. The site has had a history of creep movement since the 1960’s. No word yet on what caused the acceleration in movement…but if I was a betting man, I’d say it was related to someone’s landscaping watering or swimming pool leaking.
YouTube Video
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Location Map
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Another El Nino storm just moved through Southern California culminating in significant rainfall on Saturday producing mudslides and debris flows in the area hit by this past September’s Station Fire. More after the break. (Photo from