
On This Day: 7.7-magnitude earthquake in Iran kills nearly 50,000
1 of 4 | A concrete building is damaged in Walls, Iran, after a 7.7-magnitude earthquake struck the region June 21, 1990. File Photo by M. Mehrain, Dames and Moore/NOAA On this date in history: In 1788, the U.S. Constitution became effective when it …