Earth Strain and Acoustic Monitoring of Geodynamic Processes in Seismic and Aseismic Zones Using Highly Sensitive, Spatially Separated Instruments

Experience in synchronous observation of seismic-strain oscillations of the Earth by the spaced laser interferometers

“…This peak exhibits moderate coherency properties. It should be noted that strong splitting of this spectral peak we observed before the major Chile Mw 8.3 earthquake on 16 September 2015 using the same laser strainmeter [10].…”

“…Three of the recorded earthquakes, which are presented in the Table 1, have been analyzed and the obtained results are discussed below. [10]. Let us analyze the obtained data of seismic-strain registrations in more detail.…”

Application of spaced system of laser interferometers and tiltmeters for sharing the earthquakes precursory events

“…Earlier [12], we suggested a possible connection the observed strain-baric processes during the earthquake on 2 March 2016 (Sumatra, Mw 7.8) with the development of a powerful tropical cyclone WINSTON (Category 5 SSHWS) in South Pacific over the border region between Indo-Australian and Pacific tectonic plates (see Fig. 1).…”

“…Our first evaluable experience in this direction was the found statistically significant value of global coupling of strain-baric anomalies detected by means of distant Fryazino -Kamchatka instruments using the Pearson's correlation technique [12]. This kind of data processing is applied here for time intervals included the 2015-2020 strong earthquakes.…”