Answer:
1. The moment magnitude of an earthquake is a measure of the amount of energy released - an amount that can be estimated from seismograph readings. ... Richter of the California Institute of Technology, is the best known scale for measuring the magnitude of earthquakes.
2. Triangulation can be used to locate an earthquake. The seismometers are shown as green dots. The calculated distance from each seismometer to the earthquake is shown as a circle. The location where all the circles intersect is the location of the earthquake epicenter.
3. Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs. There are several different kinds of seismic waves, and they all move in different ways.
