{"id":43389,"date":"2023-04-17T06:45:40","date_gmt":"2023-04-17T06:45:40","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=43389"},"modified":"2023-04-18T06:48:28","modified_gmt":"2023-04-18T06:48:28","slug":"arroyo-seco-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2023\/04\/17\/arroyo-seco-1\/","title":{"rendered":"The Arroyo Seco landslide in Monterey County, California"},"content":{"rendered":"

The Arroyo Seco landslide in Monterey County, California<\/h4>\n

Over the last week, concerns have been raised about a landslide that has developed in Arroyo Seco in Monterey County<\/a> in California, USA.<\/a>\u00a0 The best image I have found of the setting of the landslide was tweeted by Karl Cooke, a journalist with KION 5\/46<\/a>:-<\/p>\n

\"An

An overview of the Arroyo Seco landslide in California. Image tweeted by Karl Cooke.<\/a><\/em><\/p><\/div>\n

.<\/p>\n

There is a more detailed image of the landslide itself in a drone video of the landslide that was posted to Facebook by Felix Cortez, who is a reporter for KSBW Action News 8:-<\/p>\n

\"A

A view of the Arroyo Seco landslide in California. Still from a drone video posted to Facebook by Felix Cortez<\/a>.<\/em><\/p><\/div>\n

.<\/p>\n

The local authorities have rightly closed the road at the foot of the slope.\u00a0 The landslide is being monitored by the USGS<\/a>.<\/p>\n

The trigger for the landslide is not clear, but California has suffered a series of major rainstorms through the winter and the spring.\u00a0 In January, the high level of the river necessitated a helicopter rescue for a couple living in the area<\/a>.<\/p>\n

This landslide might well be a substantial headache for the inhabitants of the area and the people trying to keep them safe.\u00a0 Movement of the slope is likely to be hard to predict.\u00a0 One scenario is that the slope fully fails, creating a debris pile that can be removed, albeit at substantial cost. A more difficult scenario is that the slope does not fully fail, leaving a hazard on the slope that will place the road at risk.\u00a0 Experience from elsewhere suggests that decision-making in this situation is a challenge.<\/p>\n

A tweet from KION News Channel 46 provides a really nice 3D view of the slope.\u00a0 It appears that the failure is occurring on geological strata that dip in parallel to the slope?<\/p>\n

\n

ARROYO SECO FACES POSSIBLE LANDSLIDE
Read more: https:\/\/t.co\/Ou057UOKNz<\/a> pic.twitter.com\/4WP4gNofLO<\/a><\/p>\n

— KION News Channel 46 (@KIONnews) April 13, 2023<\/a><\/p><\/blockquote>\n