Shallow and deep-seated landslides have occurred episodically on the steep coastal bluffs of the Atlantic Highlands area (Boroughs of Atlantic Highlands and Highlands) in New Jersey. The oldest documented deep-seated landslide occurred in April 1782 and significantly changed the morphology of the bluff. However, recent landslides have been mostly shallow in nature and have occurred during large storms with exceptionally heavy rainfall. These shallow landslides have resulted in considerable damage to residential property and local infrastructure and threatened human safety.
The recent shallow landslides in the area (locations modified from New Jersey Department of Environmental Protection) consist primarily of slumps and flows of earth and debris within areas of historical landslides or on slopes modified by human activities. Such landslides are typically triggered by increases in shallow soil moisture and pore-water pressure caused by sustained and intense rainfall associated with spring nor’easters and late summer–fall tropical cyclones. However, the critical relation between rainfall, soil-moisture conditions, and landslide movement has not been fully defined. The U.S. Geological Survey is currently monitoring hillslopes within the Atlantic Highlands area to better understand the hydrologic and meteorological conditions associated with shallow landslide initiation.
Reilly, P.A., Ashland, F.X., and Fiore, A.R., 2017, Landslide monitoring in the Atlantic Highlands area, New Jersey: U.S. Geological Survey Fact Sheet 2017–3068, 4 p., https://doi.org/10.3133/fs20173068.
ISSN: 2327-6932 (online)
Table of Contents
- Current Landslide Monitoring Sites
- Potential for a Landslide Early Warning System
|Publication Subtype||USGS Numbered Series|
|Title||Landslide monitoring in the Atlantic Highlands area, New Jersey|
|Series title||Fact Sheet|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||New Jersey Water Science Center|
|Other Geospatial||Atlantic Highlands area|
|Online Only (Y/N)||Y|
|Additional Online Files (Y/N)||N|
|Google Analytic Metrics||Metrics page|