A major landslide occurred on July 8, 2023, in the Rolling Hills Estates on the North side of the Palos Verdes peninsula in LA County resulting in the evacuation of 12, likely destroyed, homes. There are no reports of injuries but the photos and video show movement on the order of 10s of feet. The YouTube video below is probably the best one I’ve seen (found via the Landside Blog). It’s too early for causes, but the Palos Verdes peninsula is home to other landslide complexes. And that part of California has had a great deal of rain in the preceding months as well.
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USGS Landslide Documentary Video
The USGS has a documentary on landslide video on landslide danger in the San Francisco Bay area entitled “Riding the Storm”. I think the target audience is more general than geologist or engineer, but it is still interesting. The bullet points from the USGS site:
- A catastrophic 1982 rainstorm triggered 18,000 landslides in the Bay Area, claiming 25 lives and causing $66 million in property damage
- The combination of steep slopes, weak rocks, and intense winter storms make Bay Area uplands an ideal setting for landslides
- Landslides include both swift, potentially deadly debris flows and slower, but destructive deepseated slides
- Learn what USGS scientists have discovered about landslide dynamics and which slopes are most susceptible to sliding
- Hear the devastating stories of Bay Area residents affected by landslides and learn to recognize the danger signs
Click through to view the trailer and for links to download the full video. (Image credit: USGS)
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rockman
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