Piezoseismology is a "New" Earth Science. Its the science of detecting piezo-radiation that is emitted from rock that has come under abnormal strain.
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Earthquake cells are delineated by the area of the detected strain, the amount of detected strain, the daily cycle within the area of detected strain, the visual detected direction to the epicenter and the tracking of the signal by directional tracking dishes.
Depth is easily calculated: distance to the nodal ring is the same as the depth to the hypocenter or foci from the epicenter.
Determination of when earthquakes will strike is very easy. In the first place, if there is no detection of strain, then there cannot be any earthquake occurring in that vicinity. On the other hand, if there is detection of earthquake activity by piezo-radiation being detected piezoseismically, then its possible that an earthquake will strike at the hypocenter within that earthquake cell very soon.
For larger earthquakes, the time of the upcoming earthquake can very easily be determined hours and days in advance by watching the release of other earthquake cells that won't become a common earthquake, but were only silent eathquakes or slow earthquakes pulsing back and forth.
Releases at earthquake cells do sometimes occur and are detectable as to exactly when they occur, and from them a linked area of a large earthquake cell in the far distance can be determined as to when it will strike to within hours of its actual striking; but one day to several days in advance especially for larger earthquakes along the western coastal areas of the USA.
Earthquake cells that release, that are linked to larger earthquakes in the far distance are true precursor earthquakes, and they often show exactly where the Trigger Earthquake is within a large earthquake cell.
What is really strange is that by using specific lenses, the piezo-radiation can be seen coming from the fault under pressure. The piezo-radiation penetrates through everything, including the steel walls on your house or skyscraper and through hundreds of miles of rock; nothing stops piezo-radiation.
For more information watch the 22 videos. http://www.youtube.com/user/NewMexicoGeologist
This is a very interesting new science, and the discoverer wants all ages to be able to understand how easy earthquakes can be detected, mapped, and predicted as to exactly when they will occur; or to exactly determine that there is no chance that they will occur. These scientific processes are usefull any where in the world.
It's IMPOSSIBLE for a destructive earthquake to strike any place in the world without this type of piezo-seismic system detecting it, if its being used properly within 200-400 miles of the coming disaster; and detection of such an upcoming disaster will be days in advance, plenty of time for evacuation if need be.
http://www.youtube.com/user/NewMexicoGeologist