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Senior Science Advisor for Earthquake and Geologic Hazards Earthquake Hazards, Geomagnetism, and Global Seismographic Network Programs Email: ghayes@usgs.gov Phone: 303-273-8421
Senior Science Advisor for Earthquake and Geologic Hazards Earthquake Hazards, Geomagnetism, and Global Seismographic Network Programs Email: ghayes@usgs.gov Phone: 303-273-8421