Sound and shock were violent

In Michigan, Nov. 27, 1919, a violent shock was felt, similar to one on Sept. 27 of the same year in Reading, England. People rushed from their homes, the New York Times reported the next day, thinking there had been an earthquake. At the same time, in Indiana, Illinois and Michigan, a “‘blinding glare’ was seen in the sky.”

–Charles Fort, New Lands, p523 (The Complete Books of Charles Fort, Dover, c1974).