So that's 29 earthquakes in Oklahoma in the last couple of days with three of them peaking out at 4.7, 5.6 and this one tonight at 4.7 again. The 5.6, of course, beat a 5.5 earthquake in the 1950s to become the biggest earthquake in Oklahoma history.

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Earthquake List for Map Centered at 35°N, 97°W
USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards

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