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
Seismologists examine the parts of an earthquake, such as the slip of the fault that causes it, what happens to the earth's surface during an earthquake, how the energy of an earthquake moves from inside the earth to the surface, and how this energy causes damage.arthquake, shaking of the earth's surface caused by rapid movement of the earth's rocky outer layer. Earthquakes occur when energy stored within the earth, usually in the form of strain in rocks, suddenly releases.