Strange Sounds 2/24/2020
Earthquakes send out signals that propagate at the speed of light.Those signals are sudden changes in gravity caused by a shift in the earth’s internal mass. These so-called PEGS signals (PEGS = prompt elasto-gravity signals) could make it possible to detect an earthquake very early before the arrival of the destructive earthquake or tsunami waves.
The gravitational effect of this phenomenon is very small. So PEGS signals could only be recorded for the strongest earthquakes.
Moreover, they are not only generated directly at the source of the earthquake, but also continuously as the earthquake waves propagate through the earth’s interior.
However, since the gravity that can be measured locally depends on the mass distribution in the vicinity of the measuring point, every earthquake generates a small but immediate change in gravity.
More:
https://strangesounds.org/2020/02/earthquakes-deform-gravity.html
