Hazardous environments Flashcards
What is geodesy?
Geodesy deals with measurement and representation of the earth (i.e. where things are, where they have been and where they are going). Geodesy helps with determining the movement of sea floor spreading.
What are the human impacts?
Injection of waste fluids in the ground, commonly a byproduct of an extraction process for natural gas known as fracking, can increase the outward pressure that liquid in the pores of a rock exerts, known as pore pressure. The increase in pore pressure decreases the frictional forces that keep rocks from sliding past each other, essentially lubricating fault plane. The largest earthquake induced by fluid injection that has been documented in the scientific literature was a magnitude 5.8 earthquake on September 23, 2016 in central Oklahoma.
Formation of a tsunami?
Impacts of a tsunami?
