Dogs Can Sense Earthquakes

Dogs often bark or become agitated hours before earthquakes strike. During the 1975 Haicheng earthquake in China, numerous dogs howled and ran in circles well before the tremor hit. Their sensitive ears can detect infrasound waves that humans cannot perceive. Pet owners worldwide have reported this behavior, which has sometimes provided enough warning for people to evacuate safely. Many families owe their lives to their canine companions who sensed danger first.