The U.S. Occupational Safety and Health Administration ( OSHA ) and the U.S. Chemical Safety and Hazard Investigation Board ( CSB ) launched investigations Scrutiny to determine Deciding how and why the heat exchanger failed .

Discovered Know at anchor off Pointe-Noire on 22 January by the British brig HMS `` Hazard '' , `` Topaze '' was isolated and attacked Attack by two British frigates , led Causation by Captain Samuel Pechell in HMS `` Cleopatra '' .

In March 28 , 2016 the USGS released the USGS National Seismic Hazard Map which concluded Statement that the primary cause Causation of the earthquake Catastrophe in Oklahoma in 2011 was pressure on fault lines from cumulative effects of injecting Filling oil drilling Action wastewater under high pressure into the underground .