A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship

Irina Vladimirova; Yuriy Gabsatarov; Nadezhda Shcheveva

doi:10.2205/2025ES000972

VAK Russia 1.6.9 UDC 550.34.013.4 CSCSTI 37.31 Russian Classification of Professions by Education 05.06.01 Russian Library and Bibliographic Classification 263 Russian Trade and Bibliographic Classification 6323 BISAC SCI082000 VAK Russia 1.6 UDC 55 UDC 550.34 UDC 550.383 CSCSTI 37.01 CSCSTI 37.15 CSCSTI 37.25 CSCSTI 38.01 CSCSTI 36.00 CSCSTI 37.00 CSCSTI 38.00 CSCSTI 39.00 CSCSTI 52.00 Russian Library and Bibliographic Classification 26 Russian Trade and Bibliographic Classification 63 BISAC SCI

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A SERIES OF STRONG EARTHQUAKES IN CHILE AT THE BEGINNING OF THE 21ST CENTURY: SIMILARITIES, DIFFERENCES, RELATIONSHIP A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship

АА Аа

Published in Russian Journal of Earth Sciences · Volume 25, Issue 2 · Pages 1–6 · Rubric: Special Issue: “Data Science, Geoinformatics and Systems Analysis in Geosciences”

DOI: https://doi.org/10.2205/2025ES000972 · EDN: IEMQCL

Received: 15.11.2024 Accepted: 15.04.2025 Published: 23.05.2025 Language of publication: ENG

Authors

Irina Vladimirova

ORCID Scopus ResearcherID SPIN

Yuriy Gabsatarov

ORCID Scopus ResearcherID SPIN

Nadezhda Shcheveva

ORCID

Irina Vladimirova

Academic degree: candidate of physical and mathematical sciences

Institute of Earthquake Prediction Theory and Mathematical Geophysics Russian academy of sciences Leading researcher · Laboratory No.4 · Russian Federation · Moscow

Shirshov Institute of Oceanology, Russian Academy of Sciences senior researcher · S.L. Solov'iev tsunami laboratory · Russian Federation · Moscow

ORCID Scopus ResearcherID SPIN

Yuriy Gabsatarov

Academic degree: candidate of physical and mathematical sciences

P.P.Shirshov Institute of Oceanology of the Russian Academy of Science Moscow

ORCID Scopus ResearcherID SPIN

Nadezhda Shcheveva

Shirshov Institute of Oceanology, Russian academy of Sciences Engineer · Laboratory of geodynamics, georesources, geohazards and geoecology · Russian Federation · Moscow

ORCID

ABSTRACT

In less than six years, three devastating earthquakes with magnitude exceeding 8.0 have occurred over the Chilean subduction zone. These events were quite well recorded by permanent GNSS stations. We used finite element modeling for a spherically symmetric layered Earth and machine learning methods to investigate the geodynamic processes preceding and accompanying the Chilean earthquake sequence. We find that preseismic coupling before all events is strongly correlated with the coseismic slip distribution, while afterslip primarily located around the coseismic slip patches. We also found that large geologic structures of the oceanic plate have a decisive influence on the development of geodynamic processes in the rupture zones of large Chilean earthquakes.

KEYWORDS

Chilean subduction zone, strong earthquakes, geodynamic processes, numerical modeling, machine learning

Funding

This research was supported by a grant from the Russian Science Foundation, No. 24-27-00176, https://rscf.ru/en/project/24-27-00176/.

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1. Gill P. E., Murray W., Saunders M. A., et al. Procedures for optimization problems with a mixture of bounds and general linear constraints // ACM Transactions on Mathematical Software. — 1984. — Vol. 10, no. 3. — P. 282–298. — DOI:https://doi.org/10.1145/1271.1276.

2. Gusman A. R., Murotani S., Satake K., et al. Fault slip distribution of the 2014 Iquique, Chile, earthquake estimated from ocean‐wide tsunami waveforms and GPS data // Geophysical Research Letters. — 2015. — Vol. 42, no. 4. — P. 1053–1060. — DOI:https://doi.org/10.1002/2014gl062604.

3. Heidarzadeh M., Murotani S., Satake K., et al. Source model of the 16 September 2015 Illapel, Chile, Mw 8.4 earthquake based on teleseismic and tsunami data // Geophysical Research Letters. — 2016. — Vol. 43, no. 2. — P. 643–650. — DOI:https://doi.org/10.1002/2015gl067297.

4. Klein E., Vigny C., Fleitout L., et al. A comprehensive analysis of the Illapel 2015 Mw 8.3 earthquake from GPS and InSAR data // Earth and Planetary Science Letters. — 2017. — Vol. 469. — P. 123–134. — DOI:https://doi.org/10.1016/j.epsl.2017.04.010.

5. Lay T., Yue H., Brodsky E. E., et al. The 1 April 2014 Iquique, Chile, Mw 8.1 earthquake rupture sequence: Lay et al.: April 1, 2014 Iquique Mw 8.1 earthquake // Geophysical Research Letters. — 2014. — Vol. 41, no. 11. — P. 3818–3825. — DOI:https://doi.org/10.1002/2014gl060238.

6. Li S., Chen L. Vertical Crustal Deformation Due To Viscoelastic Earthquake Cycles at Subduction Zones: Implications for Nankai and Cascadia // Journal of Geophysical Research: Solid Earth. — 2024. — Vol. 129, no. 8. — DOI:https://doi.org/10.1029/2024jb028817.

7. Lin Y.-n. N., Sladen A., Ortega‐Culaciati F., et al. Coseismic and postseismic slip associated with the 2010 Maule Earthquake, Chile: Characterizing the Arauco Peninsula barrier effect // Journal of Geophysical Research: Solid Earth. — 2013. — Vol. 118, no. 6. — P. 3142–3159. — DOI:https://doi.org/10.1002/jgrb.50207.

8. Maldonado V., Contreras M., Melnick D. A comprehensive database of active and potentially-active continental faults in Chile at 1:25,000 scale // Scientific Data. — 2021. — Vol. 8, no. 1. — DOI:https://doi.org/10.1038/s41597-021-00802-4.

9. Nishimura T., Thatcher W. Rheology of the lithosphere inferred from postseismic uplift following the 1959 Hebgen Lake earthquake // Journal of Geophysical Research: Solid Earth. — 2003. — Vol. 108, B8. — DOI:https://doi.org/10.1029/2002jb002191.

10. Pollitz F. F. Coseismic Deformation From Earthquake Faulting On A Layered Spherical Earth // Geophysical Journal International. — 1996. — Vol. 125, no. 1. — P. 1–14. — DOI:https://doi.org/10.1111/j.1365-246x.1996.tb06530.x.

11. Pulido N., Yagi Y., Kumagai H., et al. Rupture process and coseismic deformations of the 27 February 2010 Maule earthquake, Chile // Earth, Planets and Space. — 2011. — Vol. 63, no. 8. — P. 955–959. — DOI:https://doi.org/10.5047/eps.2011.04.008.

12. Sobrero F. S., Bevis M., Gómez D. D., et al. Logarithmic and exponential transients in GNSS trajectory models as indicators of dominant processes in postseismic deformation // Journal of Geodesy. — 2020. — Vol. 94, no. 9. — DOI:https://doi.org/10.1007/s00190-020-01413-4.

13. Steblov G., Vladimirova I. Geodetic Inversions and Applications in Geodynamics // Applications of Data Assimilation and Inverse Problems in the Earth Sciences. — Cambridge University Press, 2023. — P. 278–292. — DOI:https://doi.org/10.1017/9781009180412.019.

14. Truong C., Oudre L., Vayatis N. Selective review of offline change point detection methods // Signal Processing. — 2020. — Vol. 167. — DOI:https://doi.org/10.1016/j.sigpro.2019.107299.

15. Wang K., Tréhu A. M. Invited review paper: Some outstanding issues in the study of great megathrust earthquakes - The Cascadia example // Journal of Geodynamics. — 2016. — Vol. 98. — P. 1–18. — DOI:https://doi.org/10.1016/j.jog.2016.03.010.

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GOST

Vladimirova I. S., Gabsatarov Y. V., Shcheveva N. S. A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship // Russian Journal of Earth Sciences. 2024. no. 2. pp. 1-6. DOI: https://doi.org/10.2205/2025ES000972. EDN: IEMQCL. (Date of access 01.10.2026).

MLA

Irina Vladimirova, Gabsatarov Y. V., Shcheveva N. S.. "A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship." Russian Journal of Earth Sciences 25.2 (2024): 1-6. DOI: https://doi.org/10.2205/2025ES000972. EDN: IEMQCL.

APA

Vladimirova I. S., Gabsatarov Y. V., Shcheveva N. S. (2024). A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship. Russian Journal of Earth Sciences, 25(2), 1-6. https://doi.org/10.2205/2025ES000972 EDN: IEMQCL.

Chicago

Irina Vladimirova, Gabsatarov Y. V., Shcheveva N. S.. "A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship." Russian Journal of Earth Sciences 25, no. 2 (2024): 1-6. https://doi.org/10.2205/2025ES000972. EDN: IEMQCL.

WIKI

{{cite journal | author = Vladimirova I. S., Gabsatarov Y. V., Shcheveva N. S. | title = A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship | journal = Russian Journal of Earth Sciences | year = 2024 | volume = 25 | issue = 2 | pages = 1-6 | doi = 10.2205/2025ES000972 }} EDN: IEMQCL

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A SERIES OF STRONG EARTHQUAKES IN CHILE AT THE BEGINNING OF THE 21ST CENTURY: SIMILARITIES, DIFFERENCES, RELATIONSHIP A Series of Strong Earthquakes in Chile at the Beginning of the 21st Century: Similarities, Differences, Relationship

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