Despite their noisy and chaotic appearance, coda waves are highly repeatable such that if no change occurs in the medium over time, the waveforms are identical.
2.
If a change occurs, such as a crack in the medium, the change in the multiple scattered waves will result in an observable change in the coda waves.
3.
This second visit to the United States coincided with the 1966 Parkfield earthquake, noteworthy for its so-called coda waves, reverberations of seismic energy due to multiple scattering from subsurface inhomogeneities.
मोबाइल