Several earthquakes, the largest a magnitude 4.3, shook the Oklahoma City metro late Friday and early Saturday morning. State regulators and the Oklahoma Geological Survey are investigating the ...

This pattern was a repeat of the earthquakes in Oklahoma when peak earthquakes, almost 900 > 3M, occurred in 2015. After the peak, the largest-ever earthquake occurred in September 3 of 2016: 5.8 M.

Oklahoma rocked by one of its biggest earthquakes in history What is believed to be one of the biggest earthquakes in the state’s history struck northern Oklahoma on Saturday morning.

HELENA, Okla. – The US Geological Survey reports a 4.0 magnitude earthquake stuck northwestern Oklahoma early Friday. The USGS says the quake was recorded at 12:27 a.m., 12 miles northeast of ...