https://doi.org/10.1140/epjc/s10052-024-13111-y
Letter
Horndeski-like gravity perturbation induced by large-magnitude earthquake
Computational Applications, Group, Division of Applied Technologies, National Center for Science and Research ‘Demokritos’, Aghia Paraskevi, Athens, Greece
Received:
14
May
2024
Accepted:
3
July
2024
Published online:
24
July
2024
We hypothesis that large earthquakes generate Horndeski-like Gravitational Wave (GW). We find that such a Horndeski-like GW propagates with the speed of sound. The sound waves generated by an earthquake make a local and temporal change to the Earth’s diagravitational medium; therefore, they modify the GW speed in a standard, Alternative-Theory-of-Gravity (ATG) sense. The quantum of the Horndeski-like GW is a massless scalar quasiparticle and cannot exist outside of the propagation region of the P-field. The Horndeski-like GW may be detectable by future GW detectors with a sensitivity of 10–15 
in the region of 0.1–1 Hz.
© The Author(s) 2024
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Funded by SCOAP3.
