Articles | Volume 24, issue 11
https://doi.org/10.5194/nhess-24-3895-2024
https://doi.org/10.5194/nhess-24-3895-2024
Research article
 | 
13 Nov 2024
Research article |  | 13 Nov 2024

2021 Alaska earthquake: entropy approach to its precursors and aftershock regimes

Eugenio E. Vogel, Denisse Pastén, Gonzalo Saravia, Michel Aguilera, and Antonio Posadas

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Cited articles

Biswas, N. N., Pujol, J., Tytgat, G., and Dean, K.: Synthesis of seismicity studies for western Alaska, Tectonophysics, 131, 369–392, https://doi.org/10.1016/0040-1951(86)90183-6, 1986. a
Daly, K. A., Abers, G. A., Mann, M. E., Roecker, S., and Christensen, D. H.: Subduction of an oceanic plateau across southcentral Alaska: High-resolution seismicity, J. Geophys. Res.-Sol. Ea., 126, e2021JB022809, https://doi.org/10.1029/2021JB022809, 2021. a
Darooneh, A. H. and Mehri, A.: A nonextensive modification of the Gutenberg-Richter law: q-stretched exponential form, Physica A, 389, 509–514, https://doi.org/10.1016/j.physa.2009.10.006, 2010. a, b, c
Doser, D. I. and Rodriguez, H.: A seismotectonic study of the Southeastern Alaska Region, Tectonophysics, 497, 105–113, https://doi.org/10.1016/j.tecto.2010.10.019, 2011. a
Flores-Márquez, E., Ramírez-Rojas, A., and Sigalotti, L.: Non-Extensive Statistical Analysis of Seismicity on the West Coastline of Mexico, Fractal Fract., 8, 306, https://doi.org/10.3390/fractalfract8060306, 2024. a, b
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Short summary
For the first time, an entropy analysis has been performed in Alaska, a seismic-rich region located in a subduction zone that shows non-trivial behavior: the subduction arc changes seismic activity from the eastern zone to the western zone, showing a decrease in this activity along the subduction zone. This study shows how an entropy approach can help us understand seismicity in subduction zones.
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