Tectonic geomorphology of the San Andreas Fault zone from high resolution topography: An example from the Cholame segment

Arrowsmith, J Ramón; Zielke, Olaf

doi:10.1016/j.geomorph.2009.01.002

Cited by 177 publications

(97 citation statements)

References 18 publications

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“…Due to its sub-meter resolution, LiDAR is one of the most useful remotely sensed datasets for the representation of landscape morphology and lithology, as well as for the identification and characterization of potentially active faults, since it has the potential to detect subtle tectonic signatures, especially in areas of dense vegetation (e.g. Arrowsmith & Zielke, 2009;Brunori, Civico, Cinti, & Ventura, 2013;Cunningham et al, 2006;Haugerud et al, 2003;Hilley, DeLong, Prentice, Blisniuk, & Arrowsmith, 2010;Hunter, Howle, Rose, & Bawden, 2011;Lin, Kaneda, Mukoyama, Asada, & Chiba, 2013). Vertical and horizontal errors associated with the available LiDAR acquisition are less than 0.2 m and 0.5 m, respectively.…”

Section: Methodsmentioning

confidence: 99%

Quaternary geology of the Middle Aterno Valley, 2009 L'Aquila earthquake area (Abruzzi Apennines, Italy)

et al. 2014

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We present a new 1:25,000-scale geological map of the Middle Aterno Valley basin, the epicenter of the 2009 L'Aquila M W 6.1 earthquake. This earthquake highlighted the incomplete understanding of the geology of the area, in particular the Quaternary continental deposits and active tectonics, which caused the Paganica fault system to be ignored by researchers.The map, utilizing airborne LiDAR analysis and traditional field survey approaches, is the first example in Italy (and one of the few in Europe) that integrates high-resolution topography in active tectonic studies. With unprecedented detail and precision on the spatial distribution of deposits, the map of the geomorphic and tectonic features provides new insight for the reconstruction of the Quaternary basin evolution and estimation of long-term deformation rates for the the Paganica fault system. Detailed fault mapping of Quaternary deposits represents an essential input for seismic hazard assessment and surface faulting hazard evaluation.

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Section: Methodsmentioning

confidence: 99%

Quaternary geology of the Middle Aterno Valley, 2009 L'Aquila earthquake area (Abruzzi Apennines, Italy)

et al. 2014

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“…This allows geoscientists to undertake detailed geomorphic and tectonic mapping to identify faults scarps, displaced geomorphic features, and other tectonic landforms, even in highly vegetated areas (e.g. Arrowsmith & Zielke, 2009;Brunori, Civico, Cinti, & Ventura, 2013;Cunningham, Grebby, Tansey, Gosar, & Kastelic, 2006;Haugerud et al, 2003;Hilley, DeLong, Prentice, Blisniuk, & Arrowsmith, 2010;Hunter, Howle, Rose, & Bawden, 2011;Lin, Kaneda, Mukoyama, Asada, & Chiba, 2013).…”

Section: Lidar Datamentioning

confidence: 99%

Traces of the active Capitignano and San Giovanni faults (Abruzzi Apennines, Italy)

et al. 2016

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We present a 1:20,000 scale map of the traces of the active Capitignano and San Giovanni faults in the area of the Montereale basin (central Apennines, Italy) covering an area of about 80 km 2 . Detailed fault mapping is based on high-resolution topography from airborne LiDAR imagery validated by extensive ground truthing and geophysical prospecting. Our analysis allowed the recognition of several features related to fault activity, even in scarcely accessible areas characterized by dense vegetation cover and rugged terrain. The identified fault traces run at the base of the NW-SE striking Montereale basin-bounding mountain front and along the base of the southwestern slope of the Monte Mozzano ridge, and have a length of about 12 and 8 km, respectively. Improving the knowledge of fault geometry is a critical issue not only for the recognition of seismogenic sources but also for surface fault hazard assessment and for local urban planning. The knowledge of the exact location of the fault traces is also crucial for the seismogenic characterization of the active faults by means of paleoseismological trenching.ARTICLE HISTORY

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“…Airborne LiDAR has the capability of revealing the "bare earth," with vegetation and buildings removed, because the ground emits a laser pulse that can be separated from canopy returns through a filtering process. Thus, these data can be used to explore quantitatively the characteristics of tectonic geomorphology (e.g., Arrowsmith and Zielke [7]). The data also revealed small-scale fault scarps in the urban area (e.g., Kondo et al [8]) as well as on the mountain slopes beneath the dense forest vegetation (e.g., Lin et al [9]).…”

Section: Fault-related Broad Deformations In An Urban Areamentioning

confidence: 99%

Extensive Area of Topographic Anaglyphs Covering Inland and Seafloor Derived Using a Detailed Digital Elevation Model for Identifying Broad Tectonic Deformations

Goto

2016

Earthquakes, Tsunamis and Nuclear Risks

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Topographic anaglyph images were viewed with red-cyan glasses enabled to recognize topographic relief features easily. Anaglyphs produced from digital elevation model (DEM) data are a very effective technique to identify tectonic geomorphology. The aim of this paper was to introduce an extensive area of topographic anaglyph images produced from the 5-m-mesh and 10-mmesh inland DEM of Geospatial Information Authority of Japan, as well as the 1-s-mesh DEM on the seafloor. In this paper, we present two examples which show that the extensive area of anaglyph produced from combined detailed DEM is advantageous for identifying broad tectonic geomorphology near a coastal area, as well as in urban areas, to view "naked" topography exaggerated vertically. For instance, the NW-SE trending active flexure scarp on the Musashino surface to the north of Tokyo Metropolis has been identified by means of interpretation of these images. The tectonic deformation on the shallow seafloor near Kisakata has also been identified, where the emergence of the lagoon associated with the Kisakata earthquake (M7.0) of 1804 was recorded in the historical documents. When anaglyphs from detailed DEM are extensive and have emphasized vertical exaggeration, they are valuable for recognizing long-wave (one kilometer to several hundred meter scaled) deformations.

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Tectonic geomorphology of the San Andreas Fault zone from high resolution topography: An example from the Cholame segment

Cited by 177 publications

References 18 publications

Quaternary geology of the Middle Aterno Valley, 2009 L'Aquila earthquake area (Abruzzi Apennines, Italy)

Quaternary geology of the Middle Aterno Valley, 2009 L'Aquila earthquake area (Abruzzi Apennines, Italy)

Traces of the active Capitignano and San Giovanni faults (Abruzzi Apennines, Italy)

Extensive Area of Topographic Anaglyphs Covering Inland and Seafloor Derived Using a Detailed Digital Elevation Model for Identifying Broad Tectonic Deformations

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