FAIRBANKS, Alaska A 28-year-old graduate student from Bozeman is using earthquake sensors to track aircraft in Alaska, a groundbreaking innovation that could impact national park policies and protect caribou migrations.Bella Seppi conducts her research at the University of Alaska Fairbanks Geophysical Institute. She recently submitted her latest research after about two years of work, she said.Seppis research used nodal seismometers, which are t…