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Average error determination in the calculation of earthquake epicenter coordinates
- Source :
- Vestnik Dagestanskogo Gosudarstvennogo Tehničeskogo Universiteta: Tehničeskie Nauki, Vol 48, Iss 2, Pp 20-28 (2021)
- Publication Year :
- 2021
- Publisher :
- FSB Educational Establishment of Higher Education Daghestan State Technical University, 2021.
-
Abstract
- Objective. The study is aimed at determining the dependence of the average error in calculating the epicenter coordinates of an earthquake on errors in measuring the velocities of seismic waves for various methods of seismic event localization. Error distribution investigation for the method for determining the earthquake hypocenter coordinates using the Cassinian oval. Methods. The problem was solved using statistical methods: methods of frequency and regression analyzes, means comparison method, and uniform search method. Results. A relationship between the accuracy of measuring the velocities of seismic waves when determining the coordinates of an earthquake epicenter were established for four different earthquake hypocenter coordinates calculation methods. A method for determining the earthquake hypocenter coordinates using the fourth-order figure of the Cassinian oval was proposed. The error distribution density of the Cassinian oval method was compared with the ones of other methods. Conclusion. The results obtained make it possible to choose one or another method for calculating the hypocenter coordinates depending on the specific area in which a seismic event occurred and the locations of seismic sensors.
- Subjects :
- velocity
Technology
Hypocenter
Earth structure
seismic wave
0211 other engineering and technologies
seismic sensor
02 engineering and technology
010501 environmental sciences
engineering.material
seismology
01 natural sciences
Seismic wave
Physics::Geophysics
error distribution
021108 energy
0105 earth and related environmental sciences
Event (probability theory)
earth structure
Geodesy
Calculation methods
Distribution (mathematics)
Epicenter
engineering
Geology
Subjects
Details
- ISSN :
- 2542095X and 20736185
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- Herald of Dagestan State Technical University. Technical Sciences
- Accession number :
- edsair.doi.dedup.....9fbd083dbaf60a941352dda713bfe40d