Calculation of maximum earthquake accelerations in a semi-empirical way for southern Gulf of California extensional province, Mexico

Edahí Gutiérrez-Reyes () and Eduardo Huesca-Pérez
Additional contact information
Edahí Gutiérrez-Reyes: CONACYT-Centro de Investigación Científica y de Educación Superior de Ensenada
Eduardo Huesca-Pérez: CONACYT-Centro de Investigación Científica y de Educación Superior de Ensenada

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2023, vol. 119, issue 3, No 47, 2298 pages

Abstract: Abstract The Gulf of California (GoC) is an extensional province where the North America and Pacific plates limit. The boundary is an echelon set of normal and transform faults that produce low and moderate seismicity (M $$\sim$$ ∼ 5). Castro et al. (J S Am Earth Sci: 106:103087, 2021) reports a Gutenberg–Richter law with a minimum magnitude catalog completeness of 3.6 and b value of 0.86 that are typical for active regions. However, earthquakes with magnitude 7.1 (e.g., 2012/04/12 earthquake) have been reported in the Pescadero transform fault (Sumy et al. in Bull Seismol Soc Am: 103(1):487–506, 2013; Huesca-Pérez et al. in Bull Seismol Soc Am, 2022). The importance of applying a maximum acceleration analysis in this region is to assess the danger associated with earthquakes and their destructive potential. In this work, a semiempirical methodology for making maximum acceleration maps is proposed by using Green’s function method and Brune’s source time function model. It has the advantages of being physical, as opposed to probabilistic, and a method that is deterministic and based on first principles, as well as open to improvement. A consequence of this model is that the effective stress of the rupture is directly proportional to the scalar moment. We show observed accelerations minus predicted accelerations calculated by both methods: the semiempirical and the probabilistic methods. Numerically, the probabilistic method gives a slightly better numerical result due to the fact that the attenuation relationships are more accurate to represent the rupture process but it is obtained using regression analysis. Then, we compare it with the traditional probabilistic seismic hazard analysis (PSHA). Differences are observed, which makes it evident that the probabilistic hazard analysis includes a fluctuating part of the maximum acceleration. We see that both methods have particular advantages.

Keywords: Seismic hazard; Maximum acceleration maps; Gulf of California extensional province; Green’s function (search for similar items in EconPapers)
Date: 2023
References: Add references at CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s11069-022-05297-9 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:119:y:2023:i:3:d:10.1007_s11069-022-05297-9

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-022-05297-9

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().