Tiffany GibsonHow many earthquakes did we have in the last 30 days? And where? Here's a heat map of where the quakes occurred from April 2 - May 2: And here's a look at the 53 reports with at least 3.0 quake magnitudes and county data, according to the Oklahoma Geological Survey: We publish a recap map at the end of every month, looking back on the last 30 days of earthquakes.Read more on NewsOK.com