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Seismic Velocity Structure in the Area of the 2007, Mw 8.0, Pisco-Peru Earthquake: Implications for the Mechanics of Subduction in the Vicinity of the Nazca Ridge
Joint Authors
Source
International Journal of Geophysics
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-06
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In this study, we present a velocity model for the area of the 2007 Pisco-Peru earthquake (Mw=8.0) obtained using a double-difference tomography algorithm that considers aftershocks acquired for 6 months.
The studied area is particularly interesting because it lies on the northern edge of the Nazca Ridge, in which the subduction of a large bathymetric structure is the origin of geomorphological features of the central coast of Peru.
Relocated seismicity is used to infer the geometry of the subduction slab on the northern flank of the Nazca Ridge.
The results prove that the geometry is continuous but convex because of the subduction of the ridge, thereby explaining the high uplift rates observed in this area.
Our inferred distribution of seismicity agrees with both the coseismic and postseismic slip distributions.
American Psychological Association (APA)
Bernal, I.& Tavera, H.. 2020. Seismic Velocity Structure in the Area of the 2007, Mw 8.0, Pisco-Peru Earthquake: Implications for the Mechanics of Subduction in the Vicinity of the Nazca Ridge. International Journal of Geophysics،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1171379
Modern Language Association (MLA)
Bernal, I.& Tavera, H.. Seismic Velocity Structure in the Area of the 2007, Mw 8.0, Pisco-Peru Earthquake: Implications for the Mechanics of Subduction in the Vicinity of the Nazca Ridge. International Journal of Geophysics No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1171379
American Medical Association (AMA)
Bernal, I.& Tavera, H.. Seismic Velocity Structure in the Area of the 2007, Mw 8.0, Pisco-Peru Earthquake: Implications for the Mechanics of Subduction in the Vicinity of the Nazca Ridge. International Journal of Geophysics. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1171379
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171379