Mapping of Earthquake Prone Areas: Earthquake and its assessment
(Sprache: Englisch)
Pakistan and its neighboring counties contain all recognized kinds of most important plate boundaries as well as important dynamic intra-plate twists. Understanding the tectonics in this multifaceted area has been delayed by a relative lack of data and the...
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Pakistan and its neighboring counties contain all recognized kinds of most important plate boundaries as well as important dynamic intra-plate twists. Understanding the tectonics in this multifaceted area has been delayed by a relative lack of data and the difficulty of geologic and tectonic troubles. Even with the raise in the quantity of data in the past few years, the complications of the area need a multidirectional approach to cope with the geology and tectonics. Thus, in order to assemble huge, multidirectional data sets with varying superiority and resolution, this study takes on a Geographic Information System (GIS) approach to see at these troubles in a comprehensive and exceptional way. In this study, the authors compile maps of surficial tectonic features and deepness of the Moho, Pn velocities and Pg velocities for Pakistan and explain a cross-section means to work with data in a GIS format.
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Extract:Chapter 1, Introduction:
Seismology is the study of seismic waves which are used to measure the intensity of earthquakes. Seismic waves are the waves of energy caused by the movements of tectonic plates. Geographically, Pakistan is situated on Eurasian and Indian tectonic plates. The Northwest (NW) Himalayan Thrust, the continental collision between the Eurasian and Indo-Pak palates formed the mighty Himalayas. Its north-west front is the most active seismic zone in the world.
It is noticeable from the seismic events of Pakistan that seismicity of this area is associated with the both surface and blind faults. Further, the surface faults events show that fault segments especially the hinterland zone are more active.
The damping effect of thick Precambrian salt is the reason of lesser seismic activity in the parts of active deformational front (Salt Range and Bannu).Pakistan and its neighboring countries come in high frequency earthquake range. The most severe Makran earthquake of 1945 with a magnitude of 8.3, affected Pakistan worst and created many offshore islands along the Makran coast.On the basis of plate tectonic features, geological structures, orogenic history (age and nature of the deformation, magnetism and metamorphism) and lithoffacies, Pakistan may be subdivided into the following broad tectonic zones i.e. Indus Plate Form and Foredeep, East Balochistan Fold and Thrust Belt, Northwest Himalayan Fold and Thrust Belt, Kohistan Ladakh Magamtic Arc, Karakorm Block, Kakar Khorasan Flysch Basin and Makran Accretionary Zone, Chaghi Magmatic Arc and Pakistani Offshore.
To conduct our research with multidisciplinary data sets, we need a convenient platform for data collection and organization that we get from GIS.
One of the most important features of a geographic information system is the manipulation and analysis of both spatial (graphic) and non-spatial (non-graphic) data. Every seismological parameter contains necessary information such as
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active fault and strike-slip fault etc. Full integration of GIS is needed to perform a standard seismic routine. In this research, GIS technology will be applied to regional scale tectonic problems of Pakistan.
Our main objective is to facilitate and enhance the capability to accurately locate and evaluate seismic events in Pakistan. The purpose of this research is also to explain the crustal and upper mantle structures of the tectonic plate in Pakistan. Application of GIS in seismology will help us better understand the tectonics and the crustal structure of the region. This study will also be used in natural hazard evaluation, better understanding of the earthquake occurrences, and seismic risk assessment.
1.1, Justification of the Research:
This study will help us explain the crustal and upper mantle structure of the tectonic plate in Pakistan and will be used in natural hazard evaluation, better understanding of earthquake occurrences, and seismic risk assessment.
2, Background Concepts:
The Earth s structure is made up of three major parts: the crust, the mantle, and the core. The crust is the upper most Earth s layer, with a thickness of 5 to 10 km for the oceanic crust, and 30 to 50 km for the continental crust. The crust is differentiated into an oceanic portion, composed of denser rocks such as basalt, and a continental crust portion, composed of lighter rocks such as granite. The Earth's mantle is a 2,900 km thick shell of compressed and heated rock, beginning below the Earth's crust. The center of Earth is referred to as the core. Chemically the core is composed of a mixture of iron, nickel, and trace of other heavy metals. The core can be divided into two layers e.g. the inner and the outer core. The base of Earth s crust is formed of big hard rocks known as tectonic plates. These plates provide support to crust and ceiling to mantle. There are three most important types of Tectonic plate boundaries: Divergent boundaries, Convergent boundaries, and Tra
Our main objective is to facilitate and enhance the capability to accurately locate and evaluate seismic events in Pakistan. The purpose of this research is also to explain the crustal and upper mantle structures of the tectonic plate in Pakistan. Application of GIS in seismology will help us better understand the tectonics and the crustal structure of the region. This study will also be used in natural hazard evaluation, better understanding of the earthquake occurrences, and seismic risk assessment.
1.1, Justification of the Research:
This study will help us explain the crustal and upper mantle structure of the tectonic plate in Pakistan and will be used in natural hazard evaluation, better understanding of earthquake occurrences, and seismic risk assessment.
2, Background Concepts:
The Earth s structure is made up of three major parts: the crust, the mantle, and the core. The crust is the upper most Earth s layer, with a thickness of 5 to 10 km for the oceanic crust, and 30 to 50 km for the continental crust. The crust is differentiated into an oceanic portion, composed of denser rocks such as basalt, and a continental crust portion, composed of lighter rocks such as granite. The Earth's mantle is a 2,900 km thick shell of compressed and heated rock, beginning below the Earth's crust. The center of Earth is referred to as the core. Chemically the core is composed of a mixture of iron, nickel, and trace of other heavy metals. The core can be divided into two layers e.g. the inner and the outer core. The base of Earth s crust is formed of big hard rocks known as tectonic plates. These plates provide support to crust and ceiling to mantle. There are three most important types of Tectonic plate boundaries: Divergent boundaries, Convergent boundaries, and Tra
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Autoren-Porträt von Hafiz Adnan Ahmad Baig, Syed Hussain Haider Rizvi
The author holds an M.Sc. degree in Meteorology (specialization in Remote Sensing (RS) and Geographical information systems (GIS)) from the COMSATS Institute of Information Technology, Islamabad, and also a B.Sc. (Hons) degree in Space Science (specialization in Environment) from the Department of Space Science, University of the Punjab. In M.S Meteorology his research thesis was Application of Geographical information system for the tectonic Plate in Pakistan, while in B.Sc. (Hons) his research project was Spatial and Temporal Variation in Climate of Lahore (Pakistan) due to Rainfall.To date, the author has achieved many prizes, trophies and certificates. He stood distinguished in his batch at COMSATS Institute of Information Technology (CIIT), Islamabad in M.S., and was in the first merit list of CIIT and the Department of Space science, University of the Punjab, Lahore, at the time of his admission. Based on his outstanding academic career, the author has been awarded with a merit scholarship at CIIT. His research paper Spatial and Temporal Variation in Climate of Lahore (Pakistan) due to Rainfall has been published in International Conference on Water, Environment and Health Sciences: The Climate Change Challenges . This Conference was organized by the Universidad de las Americas, Puebla in April, 13-17, 2009, at Cholula, Puebla, Mexico.
The author has a decent knowledge of Geographic Information System (GIS) with Elements of Mapping & Cartography and Application of Remote Sensing plus Digital Image Processing & Environment Science, Analysis, Meteorology and Climatology. Additionally, he has partaken in study projects at the COMSATS Institute of Information Technology (CIIT) and the University of the Punjab.
Bibliographische Angaben
- Autoren: Hafiz Adnan Ahmad Baig , Syed Hussain Haider Rizvi
- 2014, Erstauflage, 80 Seiten, 16 Abbildungen, Masse: 15,5 x 22 cm, Kartoniert (TB), Englisch
- Verlag: Anchor Academic Publishing
- ISBN-10: 3954893096
- ISBN-13: 9783954893096
Sprache:
Englisch
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