Strange Tides Lead to Fear in Puerto Rico
MAY 30TH, 2009
An extreme-tide phenomenon caused by the moon’s proximity to the earth—this week turns out to be the moon’s perihelion, or closest approach to earth for the year—has caused some mild panic among people in the southern coast of Puerto Rico, where it has led to fears of a tsunami or biblical catastrophe. Waters receded up to 50 feet (15 meters) this week during low tide on Puerto Rico’s southern coast, sparking a flurry of calls to seismology and geological agencies from people worried about natural disasters or supernatural events. Tsunamis are sometimes preceded by a dramatic drop in sea level.