To monitor or monitoring generally means to be aware of the state of a system. Below are a couple of specific examples:

Real-Time Monitoring of an Active Landslide Above U.S. Highway 50, California - Background information on USGS ongoing monitoring of an active landslide that started in 1997, with diagrams and real-time data.
Meta Description: [ USGS Landslide Hazards Program, responsible for reporting and researching landslides and landslide hazards ]
Woodway, Washington - Landslide Monitoring - Raw data files and aerial view of area.
Meta Description: [ USGS Landslide Hazards Program, responsible for reporting and researching landslides and landslide hazards ]
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