About EarthScope

EarthScope is a multi-decade effort to explore the structure and evolution of the North American continent. a program of the National Science Foundation (NSF) that has deployed thousands of seismic, GPS, and other geophysical instruments to study the structure and evolution of the North American continent and the processes that cause earthquakes and volcanic eruptions. It involves collaboration between scientists, educators, policy makers, and the public to learn about and apply exciting scientific discoveries as they are made. ANGLE is one of many research and educational project funded by EarthScope to ensure that residents across the USA can benefit from our increased knowledge of geoscience and geohazards.

EarthScope has two observatories active in Alaska.

  • The Plate Boundary Observatory run by UNAVCO has deployed scores of high precision GPS receivers capable of measuring millimeter-scale motions of Earth's crust. These instruments along with strainmeters and tiltmeters help us learn about plate tectonics, earthquakes, and volcanoes and could aid in earthquake and tsunami early warning systems.
  • The USArray run by the Incorporated Research Institutions for Seismology is a network of seismometers and other instruments designed to help us better understand the structure of the crust and mantle. It also provides unprecedented insights into earthquake physics, volcanic processes, active tectonics, and continental structure and evolution.