Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The Anna (Shelby County) earthquake on March 9, 1937 was the strongest earthquake to strike Ohio. Few seismographs were available at that time; however, based on the felt area of the earthquake and the damage that occurred in Anna and surrounding communities, the U.S. Geological Survey assigned a magnitude of 5.4 to this earthquake.
