The sequences of higher order seismic rods in the upper and lower branching structures
are patterns that allow the graphical evaluation of the earthquake preparation
process’s magnitude and therefore contribute to outline the past and future seismicity
evolution of an area. These are identified through the consideration that after an energy
shock the magnitude values gradually decrease and increase in the upper and lower
structure, respectively, up to the Trigger Point (TP) by following a hierarchization
process.
The entire preparation time of the upper branching structure can be divided into
three stages: 1) energy accumulation, 2) trigger, 3) energy release