There is a tremendous amount of information regarding earthquakes on the internet. Please write us with any specific questions regarding Arizona or earthquakes in general. However, most general questions can be answerd by following the appropriate link from this page.
Seismologists describe earthquakes in terms of their intensity and magnitude .
For example, radio waves propagate within a range of frequencies. When you change radio stations, you are tuning to a different frequency that is carrying the information you want to hear. There are other types of electromagnetic energy you are very familiar with as well, such as visible light, infrared, xray, gamma ray, etc. For example, infrared energy has wavelengths greater than those of visible light but shorter than those of microwaves. Thus, each of these classifications is defined by a frequency or wavelength range.