Can Satellites Aid Earthquake Prediction?Publication: National Geographic News Date: July 20, 2004 View Article
Earthquake prediction is an imprecise science, and to illustrate the point, many experts point to the stories of Haicheng and Tangshen, China.
In the winter of 1975, scientists observed changes in land elevation and water levels near the town of Haicheng. People said their pets were behaving oddly. Minor earthquakes, known as foreshocks, increased in frequency. An evacuation was ordered.