Comparison of Backprojection Techniques for Rupture Propagation Modelling of the Mw = 7.8 Mainshock Earthquake near Kahramanmaras and the Mw = 7.5 Second-Largest Mainshock near Elbistan, Turkey, 2023 DOI Creative Commons
Dimitrios Nikolopoulos, Mahmood Sultan, Aftab Alam

et al.

Geosciences, Journal Year: 2025, Volume and Issue: 15(4), P. 146 - 146

Published: April 14, 2025

This paper utilises teleseismic Z-component data to investigate rupture propagation, extent, and velocity for two very destructive earthquakes in the East Anatolian Fault Zone (EAFZ): Mw = 7.8 earthquake near Kahramanmaras largest (Mw 7.5 s) aftershock at Elbistan (both on 6 February 2023). The extent of is modelled with beamforming multichannel signal classification. are derived from agencies USA Canada. found be bi-directional towards northeast southwest. Three segments identified between 34.5°–37.5° longitude 37.0°–37.5° latitude, another three 36.5°–38.0° around 38.5° latitude. A total 299 km covered 185 s velocities 3.1 km/s 3.4 km/s. Additionally, mainshock’s splay second-largest aftershock’s also bidirectional, covering 150 within 46 s. Five identified, earthquakes. Beamforming efficient identifying segments. findings provide new insights evolution spatio-temporal EAFZ may serve as a basis long-term hazard planning area

Language: Английский

Estimation of Radon Flux Density Changes in Temporal Vicinity of the Shipunskoe Earthquake with Mw = 7.0, 17 August 2024 with the Use of the Hereditary Mathematical Model DOI Creative Commons
Д.А. Твёрдый, E. O. Makarov, Roman Parovik

et al.

Geosciences, Journal Year: 2025, Volume and Issue: 15(1), P. 30 - 30

Published: Jan. 16, 2025

Using the data of radon accumulation in a chamber with excess volume at one points Kamchatka subsurface gas-monitoring network, change flux density due to seismic waves and post-seismic relaxation medium is shown. A linear fractional equation considered be model equation. The radon-transport intensity changes state geo-environment described by Gerasimov–Caputo derivative constant order. Presumably, order related geosphere. Levenberg–Marquardt method, optimal values parameters were determined based on experimental data: air exchange coefficient derivative, which allowed solving problems determination. Data temporal neighborhood strong earthquake Mw=7.0, occurred northern part Avacha Bay 17 August 2024, used. As result modeling, it shown that impact subsequent processes led chamber. obtained curves agree well real data, estimates theory.

Language: Английский

Citations

2
Comparison of Backprojection Techniques for Rupture Propagation Modelling of the Mw = 7.8 Mainshock Earthquake near Kahramanmaras and the Mw = 7.5 Second-Largest Mainshock near Elbistan, Turkey, 2023 DOI Creative Commons
Dimitrios Nikolopoulos, Mahmood Sultan, Aftab Alam

et al.

Geosciences, Journal Year: 2025, Volume and Issue: 15(4), P. 146 - 146

Published: April 14, 2025

This paper utilises teleseismic Z-component data to investigate rupture propagation, extent, and velocity for two very destructive earthquakes in the East Anatolian Fault Zone (EAFZ): Mw = 7.8 earthquake near Kahramanmaras largest (Mw 7.5 s) aftershock at Elbistan (both on 6 February 2023). The extent of is modelled with beamforming multichannel signal classification. are derived from agencies USA Canada. found be bi-directional towards northeast southwest. Three segments identified between 34.5°–37.5° longitude 37.0°–37.5° latitude, another three 36.5°–38.0° around 38.5° latitude. A total 299 km covered 185 s velocities 3.1 km/s 3.4 km/s. Additionally, mainshock’s splay second-largest aftershock’s also bidirectional, covering 150 within 46 s. Five identified, earthquakes. Beamforming efficient identifying segments. findings provide new insights evolution spatio-temporal EAFZ may serve as a basis long-term hazard planning area

Language: Английский

Citations

0