Today’s Earthquake Fact
When the Chilean earthquake occurred in 1960, seismographs recorded seismic waves that traveled all around the Earth. These seismic waves shook the entire earth for many days! This phenomenon is called the free oscillation of the Earth.
Today in Earthquake History
December 9, 1909
M 7.4, Guam – This earthquake was centered about 250 kilometers southwest of Guam and caused damage at Agana. The Women's Hospital, built of local mortar, was so… Read More