There is a nice article on slow moving landslides at Nature.com. They discuss the use of InSAR technology and point out how a number of landslides in the news over the past several years have had at least some movement before a catastrophic event. To me, the interesting part is just how a topic of interest to geoprofessionals is covered by scientists who perhaps aren’t experts in these areas. They also mention some of the more infamous slow moving landslides that are currently being researched. It’s worth a quick scan.
The people living on the eastern bank of the Traunsee (map on following page) in Austria are able to observe geology in motion these days. About one million tons of soil and rock are moving in a slow landslide toward the lake, throwing over trees (picture at left) and threatening to take parts of a village with them. Moreâ€¦
Amazing video of a rockslide as it happened yesterday along U.S. Highway 64 in the Ocoee River gorge in Tennessee. TDOT crews had almost finished removing rockslide debris from an event earlier in the day when a second slide occurred, blocking the road again. That looks like a pretty planar joint set dipping right into the roadway and everything was wet from the recent rains. Click through for the video.
A report has been released by the NYSDOT on the Scoby Hill Landslide which has impacted a 4.2-mi improvement project of Route 219. The report, dated May 20, 2008 was headed to an FHWA peer review panel.
The Feds were call in to help because of the unusual nature of the landslide. The slip surface is very deep, approximately 30-m (100-ft) below the surface and below all of the design phase investigations. And the remolded shear strength of the silty clay forming the slip surface was only 12-14 degrees.
Read on for more details of the slide. (Photo by NYSDOT)