>>Earthquakes in Ohio? Here's what you need to know, do.
The second earthquake was centered 5 km east-by-northeast of Anna, and was measured at magnitude 2.4. The USGS said it originated 12.3 km below ground. At time of writing, seven people had also reported feeling this earthquake.
On the USGS’ intensity scale, which rates earthquakes using roman numerals from one to more than 10, both of the earthquakes were rated “IV,” which means light shaking, but no damage.
According to the USGS, the area around Anna is a small seismic zone, which sees moderately frequent earthquakes. The largest earthquake in the area was in 1937, which a magnitude 5.1 earthquake caused some damage. Earthquakes causing moderate damage strike the area every two to three decades, the USGS said, with smaller quakes happening once every few years.
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