Earthquake Engineering Research Institute
Learning From Earthquakes

News Articles

CNN: Ecuador Earthquake: Death toll climbs to 413 Ecuador Earthquake: Ecuador in State of Emergency After Hundreds Killed The Watchers: Massive M7.8 earthquake hit Ecuador  

Ground Motions

USGS: M7.8 Muisne Event Page USGS: M7.8 Muisne Impact PAGER  

Overview of building damages after the September 3, 2016 Oklahoma, USA Earthquake

Overview of Building Damages The magnitude 5.8 earthquake near Pawnee, Oklahoma, on September 3, 2016; caused minor to moderate damage to some buildings. Pawnee County Emergency Management Director Mark Randell said no buildings collapsed. “We’ve got buildings cracked,” Randell said. “Most of it’s brick and mortar, old buildings from the early 1900s.” (Source) “At least three […]

Overview of building damages after the November 7, 2016 Oklahoma, USA Earthquake

Overview of Building Damages The magnitude 5.0 earthquake two kilometers west of Cushing, Oklahoma, on November 7, 2016 (USGS); caused moderate to severe damage to 40 to 50 buildings. “Cushing City Manager, Steve Spears, said 40 to 50 buildings were damaged. No major injuries have been reported. Spears said the damage included cracks to buildings and fallen […]

Ground Motion Records Mw 5.8 Pawnee, OK

The main shock of the September 3rd earthquake occurred at 12:02:44 UTC (07:02:44 -05:00 at epicenter) about 15 km to the northwest of Pawnee (36.425°N 96.929°W) at a depth of 5.56 km. The Center for Engineering Strong Motion Data (CESMD) made available on their website records from 10 stations in Oklahoma. The closest free-field station […]

Oklahoma Dams Survive september 3rd Quake

The Army Corps of Engineers inspected seven dams following the 5.8 magnitude earthquake that hit the Pawnee region on September 3, 2016. No damage has been reported. Their inspection included the large Keystone dam, which is a close distance from the earthquake’s epicenter and capable of life-threatening consequences if it were to ever collapse. Most […]