Plate boundary forces are not enough: Second‐ and third‐order stress patterns highlighted in the World Stress Map database
Oliver Heidbach,John Reinecker,Mark Tingay,Birgit Müller,Blanka Sperner,Karl Fuchs,Friedemann Wenzel +6 more
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TLDR
The World Stress Map Project (WSMP) database as mentioned in this paper provides a global database of contemporary tectonic stress information of the Earth's crust, and the 2005 release of the WSMP database provides, for some areas, high data density that enables us to investigate third-order (local) stress field variations and forces controlling them such as active faults, local inclusions, detachment horizons, and density contrasts.Abstract:
[1] The World Stress Map Project compiles a global database of contemporary tectonic stress information of the Earth's crust. Early releases of the World Stress Map Project demonstrated the existence of first-order (plate-scale) stress fields controlled by plate boundary forces and second-order (regional) stress fields controlled by major intraplate stress sources such as mountain belts and zones of widespread glacial rebound. The 2005 release of the World Stress Map Project database provides, for some areas, high data density that enables us to investigate third-order (local) stress field variations, and the forces controlling them such as active faults, local inclusions, detachment horizons, and density contrasts. These forces act as major controls on the stress field orientations when the magnitudes of the horizontal stresses are close to isotropic. We present and discuss examples for Venezuela, Australia, Romania, Brunei, western Europe, and southern Italy where a substantial increase of data records demonstrates some of the additional factors controlling regional and local stress patterns.read more
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Global variations of stress drop for moderate to large earthquakes
TL;DR: In this article, the authors investigated the global variation of earthquake stress drops using spectra of about 2000 events of mb ≥ 5.5 between 1990 and 2007, using an iterative least squares method to isolate source displacement spectra from travel path and receiver contributions.
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Global crustal stress pattern based on the World Stress Map database release 2008
TL;DR: The World Stress Map (WSM) project is a global compilation of information on the contemporary crustal stress field from a wide range of stress indicators as mentioned in this paper, and the WSM database release 2008 contains 21,750 stress data records that are quality-ranked using an updated and refined quality ranking scheme.
Journal ArticleDOI
The World Stress Map database release 2016 : Crustal stress pattern across scales
Oliver Heidbach,Mojtaba Rajabi,Xiaofeng Cui,Karl Fuchs,Birgit Müller,John Reinecker,Karsten Reiter,Mark Tingay,Friedemann Wenzel,Furen Xie,Moritz Ziegler,Mary-Lou Zoback,Mark D. Zoback +12 more
TL;DR: In this article, the authors present details of the new WSM database release 2016 and an analysis of global and regional stress pattern, and show two examples of 40 degrees-60 degrees S-Hmax rotations within 70 km.
Journal ArticleDOI
Tectonic units of the Alpine collision zone between Eastern Alps and western Turkey
Stefan M. Schmid,Bernhard Fügenschuh,Alexandre Kounov,Liviu Maţenco,Peter Nievergelt,Roland Oberhänsli,Jan Pleuger,Senecio Schefer,Ralf Schuster,Bruno Tomljenović,Kamil Ustaszewski,Douwe J.J. van Hinsbergen +11 more
TL;DR: In this article, a map that correlates tectonic units between Alps and western Turkey accompanied by a text providing access to literature data is presented, explaining the concepts used for defining the mapped Tectonic Units, and first-order paleogeographic inferences.
Journal ArticleDOI
A new paradigm for large earthquakes in stable continental plate interiors
TL;DR: In this article, the authors argue that SCR earthquakes are better explained by transient perturbations of local stress or fault strength that release elastic energy from a pre-stressed lithosphere.
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