focus
The center of a seismic wave is called the focus or hypocenter. This is the point within the Earth where the seismic waves originate.
The total energy in a seismic wave remains constant as the wave grows larger. The energy is spread out over a larger area, resulting in lower energy concentration at any specific point.
Seismic wave is mostly referred to earthquake impact ,so the word epicentre can be applied to its origin or point of impact.
Seismic wave
A seismograph can locate a seismic wave.
The fastest wave is the electromagnetic wave. Of the seismic waves, the P-wave is the fastest seismic wave.
You need a shotgun and shoot the wave and that's how you stop a seismic wave
The base of a wave is the lowest point of the wave where it meets the horizontal axis. It represents the starting point of the wave's oscillation.
A shear wave is a type of seismic wave.
a seismic wave
the sound wave
That would be a P-wave or Primary wave which is a longitudinal seismic wave.