Macroseismic intensity-based catalogue of earthquakes in Ecuador
- 作者: Cajamarca-Zuniga D.1,2, Kabantsev O.V.2, Marin C.1
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隶属关系:
- Catholic University of Cuenca
- National Research Moscow State University of Civil Engineering
- 期: 卷 18, 编号 2 (2022)
- 页面: 161-171
- 栏目: Seismic resistence
- URL: https://journals.rcsi.science/1815-5235/article/view/325799
- DOI: https://doi.org/10.22363/1815-5235-2022-18-2-161-171
- ID: 325799
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详细
Earthquake magnitude catalogues and peak ground acceleration (PGA) maps for Ecuador may be found in several studies, however, there are rare works on the characterisation of the epicentral macroseismic intensities associated with earthquakes. In view of the concept that macroseismic intensity enables us to categorise the extent and severity of damage to buildings and structures caused by an earthquake, this study aims to compile a macro-seismic intensity-based catalogue of earthquakes in Ecuador, characterise the epicentral macroseismic intensities associated to seismogenic sources and perform a comparison with the National Seismic Hazard Map. This paper is the first that presents a catalogue of earthquakes with macroseismic intensities ≥VII and a series of maps of earthquake epicentres according to intensity, focal depth, data and magnitude of seismic events in Ecuador, based on the study of historical and instrumental records from 1900 to 2021. The obtained data shows that 95% of the territory of Ecuador has a PGA > 0.1 g, which corresponds to seismic intensities greater than VII, while regions with seismicity>VIII (ag = 0.2 g) constitute 86%, and 3.8% of the territory of Ecuador has very high seismicity (>IX), where the PGA exceeds 0.5 g. This information suggests that the normative National Seismic Hazard Map of Ecuador underestimate the hazard mainly in the south-east and in the Central Andes of Ecuador, and require an actualization.
作者简介
David Cajamarca-Zuniga
Catholic University of Cuenca; National Research Moscow State University of Civil Engineering
Email: cajamarca.zuniga@gmail.com
ORCID iD: 0000-0001-8796-4635
Docent of the Department of Civil Engineering, Catholic University of Cuenca; PhD researcher, National Research Moscow State University of Civil Engineering
Ave Las Americas & Humboldt, Cuenca, 010101, Republic of Ecuador; 26 Yaroslavskoye Shosse, Moscow, 129337, Russian FederationOleg Kabantsev
National Research Moscow State University of Civil Engineering
Email: ovk531@gmail.com
ORCID iD: 0000-0001-9907-8470
Doctor of Technical Sciences, Professor
26 Yaroslavskoye Shosse, Moscow, 129337, Russian FederationChristopher Marin
Catholic University of Cuenca
编辑信件的主要联系方式.
Email: crmaring80@gmail.com
ORCID iD: 0000-0002-6601-032X
civil engineer, master student of the Department of Civil Engineering
Ave Las Americas & Humboldt, Cuenca, 010101, Republic of Ecuador参考
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