This allows NUGs to receive a reasonable to excellent price for the energy they produce and ensures that energy generated by small producers won't be wasted. 1  Gas engines for IPPs, www.clarke-energy.com, accessed 11th November 2013.  2 Independent Power Producer (IPP) - Americas Generators.
An earthquake is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to toss people around and destroy whole cities. The seismicity or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time. At the Earth's surface, earthquakes manifest themselv
Main Content. An earthquake is ground shaking caused by a sudden movement of rock in the earthâs crust. Such movements occur along faults, which are thin zones of crushed rock separating blocks of crust.n the natural environment, such hazards include the following: 1  Landslides or avalanches. 2  Surface faulting, in which the surface of the ground along one side of a fault is displaced horizontally or vertically in relation to the ground on the other side.