Two damaging M4.2 earthquakes were registered 16 km (9.9 miles) ENE of Enid, Oklahoma on March 4 and 5, 2018. The first hit at 23:17 UTC on March 4 at a depth of 1.9 km (1.18 miles) and was followed by another M4.2 at 03:40 UTC on March 5 at a depth of 5 km (3.1…
The U.S. Geological Survey registered two shallow earthquakes near Stillwater in northeast Oklahoma on December 5, 2017. The first, registered as M4.2 at 04:26 UTC (22:26 CST, December 4) hit at a depth of 3.3 km (2 miles) and the second, registered at 04:53 UTC as…
Many studies have investigated the relationship between seismic activity and wastewater injection, particularly in Oklahoma where scientists recorded a 4 000% increase in the rate of earthquakes between 2008 and 2016. Now, the USGS in Oklahoma has released an…
The USGS has released new maps with potential ground-shaking hazards in 2017 from both human-induced and natural earthquakes in the central and eastern United States (CEUS). This is the second consecutive year both types of hazards are forecasted, as previous USGS…
A record number of 907 earthquakes of magnitude greater or equal to 3.0 was reported in Oklahoma during 2015. A new study investigated the relationship between seismic activity and wastewater injection in the hope of aiding the regulators in reducing a risk of…
A series of earthquakes hit parts of Oklahoma on November 11, 2016, just days after damaging M5.0 in Cushing, north-central Oklahoma, one of the world's key oil hubs. Between 00:08 and 15:49 UTC today, USGS registered a total of 6 earthquakes with magnitudes…
A shallow earthquake registered by the USGS as M5.0 hit the city of Cushing, Oklahoma at 01:44 UTC on November 7, 2016. The agency is reporting a depth of 5 km (3.1 miles). Today's quake hit just two months after M5.8, the strongest earthquake in Oklahoma's…
The new USGS study indicates the M5.1 Oklahoma earthquake from February 2016, was likely induced by distant wastewater disposal wells. The M5.1 earthquake was the third largest earthquake in the recent Oklahoma history. It occurred on February 13, about 32 km (20…
USGS Geophysicist Daniel McNamara said that September 3, 2016 Mw5.8 Pawnee, Oklahoma earthquake was not on a fault known by the USGS. Instead, it happened on a fault perpendicular which intersected the fault. Based on aftershock patterns, this one is an unknown…
The U.S. Geological Survey has updated the official magnitude of the September 3, 2016 Pawnee, Oklahoma earthquake to Mw5.8 (from 5.6), making it Oklahoma’s largest recorded earthquake to date. "The magnitude revision is based on further in-depth analysis…
