But the fact is that, following Fairbanks' April 15 earthquake, many people called in to the Geophysical Institute to report that their pets or barnyard animals had been acting peculiarly. Since the establishment of the University of Alaska's seismographic network in 1967, this is the first local instance of so many reports being made of the same phenomenon, although the area has undergone many earthquakes during the time interval. Instincts, which humans can only dimly comprehend, take care of that. Perhaps the animals sense this with their built-in compasses. Perhaps they don't.
Nobody knows for sure.