HOME
Full Articles List
Search by Author
Title: ACOUSTIC EFFECTS OF IRANIAN EARTHQUAKE ON JULY 08, 2019
BibTex 
Open this article in the author's DB |
|
ACOUSTIC EFFECTS OF IRANIAN EARTHQUAKE ON JULY 08, 2019
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
1314-2704
|
|
|
|
||
|
|
English
|
|
|
|
20
|
|
|
|
1.2
|
|
|
|
|
|
|
|
||
|
|
The results of instrumental observations of the acoustic effects caused by stronger earthquake with the magnitude mb = 5.7 which occurred in Iran on July 08, 2019 are given. The observations were carried out at three pointes: Geophysical observatory "Mikhnevo" (54.94° N; 37.73° E), Center for geophysical monitoring in Moscow (55.70° N; 37.57° E) of Sadovsky Institute of Geosphere Dynamics of Russian Academy of Sciences and at a point located in Zvenigorod town, Moscow Region (55.69° N; 36.77° E), which provided the bearing to the source of acoustic signals. Digital series of atmospheric pressure and microbaric variations are obtained by measurements using a Davis Vantage Pro 2 automated digital weather station and MB-03 microbarometer are used as intimal data. In order to isolate useful signals in the analysis of microbaric variations, we used the Multi-Channel Correlation Method which made it possible to isolate low-amplitude coherent wave signals against incoherent microbaric noise. It is shown that the earthquake caused atmospheric disturbances in the form of propagating in the stratospheric waveguide acoustic vibrations in infrasonic frequency band which were registered at distances exceeding 2700 km, as well as microbaric variations caused by seismic waves that came to the point of acoustic detection. The characteristic periods of acoustic signals caused by earthquakes are given. The energies of the acoustic source and the earthquake are estimated from the spectral characteristics of the infrasound signal propagating in the stratospheric waveguide.
|
|
|
|
conference
|
|
|
|
||
|
|
||
|
|
20th International Multidisciplinary Scientific GeoConference SGEM 2020
|
|
|
|
20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
|
|
|
|
Proceedings Paper
|
|
|
|
STEF92 Technology
|
|
|
|
International Multidisciplinary Scientific GeoConference-SGEM
|
|
|
|
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
|
|
|
|
419-426
|
|
|
|
18 - 24 August, 2020
|
|
|
|
website
|
|
|
|
cdrom
|
|
|
|
6911
|
|
|
|
earthquake; atmosphere; atmospheric pressure; variations; acoustic vibrations
|
|
Download PDF