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USGS | 2014
A biological control agent (tamarisk leaf beetle, Diorhabda spp.) is being used to defoliate and help control the spread of exotic saltcedar or tamarisk (Tamarix spp.) in riparian ecosystems in the…
USGS | 2014
Trout introduced into remote mountain areas of the American West for sport fishing now occupy 95 percent of large mountain lakes. To escape these predators, some amphibians move to shallow, fishless…
USGS | 2014
Remotely sensed data and technologies are critical for a science-driven emergency response to landslide disasters. Topography derived from lidar, Interferometric Synthetic Aperture Radar (IFSAR) ,…
USGS | 2014
The USGS is investigating how lidar can be used to assess wildfire risk in the wildland urban interface. Lidar data, building composition, and landscape characteristics were used to quantify the…
USGS | 2014
In 1999, an international consortium of space agencies formed the International Charter ‘Space and Major Disasters’ as a mechanism to provide satellite data to evaluate disaster impacts…
USGS | 2014
After a major disaster, a satellite image or a collection of aerial photography is frequently the fastest, most effective way to determine the scope and severity of the event. The USGS operates the…
USGS | 2014
The Alaska Volcano Observatory utilizes satellite remote sensing to help monitor the 52 historically active volcanoes that comprise the 2,500-km-long Aleutian Arc. The primary volcanic hazard is to…
USGS | 2014
The Balochistan, Pakistan, earthquake (magnitude 7.7) ruptured an approximately 200-km-long stretch of the Hoshab Fault in southern Pakistan on September 24, 2013. To help understand the impact of…
USGS | 2014
The New Madrid seismic zone (NMSZ) in southeastern Missouri and northeastern Arkansas has been responsible for producing some of the largest intraplate earthquakes on record. The USGS Earthquake…
USGS | 2014
In 2001, a nearly 5-month-long sequence of shallow, mostly small magnitude earthquakes occurred beneath Spokane, Washington (population 200,000). During most of the sequence, the locations of the…
USGS | 2014
The hazard posed by earthquakes is strongly related to the geologic slip rate of active faults. To determine slip rates, geologists use high-resolution digital elevation maps (DEMs) to…
USGS | 2014
Earthquake Early Warning (EEW) systems use earthquake science and monitoring technology to alert people when shaking waves generated by an earthquake are expected to arrive at their location. The…