VISUALIZATION OF THE GEOPHYSICAL SETTINGS IN THE PHILIPPINE SEA MARGINS BY MEANS OF GMT AND ISC DATA

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 30 Jun 2020 Austria, Belgium, Italy Publisher:Universitatea Petrol-Gaze din PloiestiJournal:Central European Journal of Geography and Sustainable Development, volume 2, pages 5-15 (eissn: 2668-4322,

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Authors: Lemenkova, Polina;

doi: 10.47246/cejgsd.2020.2.1.1 , 10.5281/zenodo.3732272 , 10.6084/m9.figshare.12044799 , 10.6084/m9.figshare.12044799.v1 , 10.5281/zenodo.3732271

handle: 11585/967899 , 2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364011

VISUALIZATION OF THE GEOPHYSICAL SETTINGS IN THE PHILIPPINE SEA MARGINS BY MEANS OF GMT AND ISC DATA

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Abstract

The presented research aimed to perform geophysical modelling (gravity and geoid) and to evaluate the spatio-temporal variation of the marine geological data (distribution and depth of earthquakes) using combination of the Generic Mapping Tools (GMT) and available sources from the International Seismological Centre (ISC-EHB) that produce data on earthquakes as part of seismic survey and regional research projects. The target study area is a Philippine Sea basin (PSB) with two focused marginal areas: Philippine Trench and Mariana Trench, two hadal trenches located in the places of the tectonic plates subduction. Marine free-air gravity anomaly in the PSP shows higher values (>80 mGal) of the gravity fields structure at the volcanic areas and Philippine archipelago. Current study presented comparative geophysical analysis, and mapping free-air gravity and geoid in the Philippine Sea basin area. As a result of this study, the average level of earthquakes located in the Philippine Trench and Mariana Trench areas were compared, and those located in the Philippine archipelago are determined to be in the souther-western part (area of west Mindanao, south-west Visayas islands), while Luzon Islands shown shallower located earthquakes. The results on the Mariana Trench segment shown shallower located earthquakes compared of the other marginal regions of the Philippine Sea Basin. Current paper contributes to the studies on natural hazards through visualization and analysis of the earthquakes activities (occurrence and magnitude intensity), due to increasing interest to the problems of seismicity in the Pacific Ocean, which may have environmental effects causing harmful consequences and possible risks for coastal population of the Philippine islands through aftershocks and tsunami.

Countries

Austria, Belgium, Italy

Related Organizations

Alma Mater Studiorum University of Bologna
Italy
Ocean University of China
China (People's Republic of)
University of Salzburg
Austria
Université Libre de Bruxelles
Belgium

Keywords

[INFO.INFO-DS] Computer Science [cs]/Data Structures and Algorithms [cs.DS], Risk presention, Data science, free-air gravity, Disciplines graphiques, Information, Geoinformatics, Géographie physique, CAD, GMT, cartography, shell scripting, geoid, free-air gravity, geophysics, visualization, earthquake, Visualization, Deep-sea trench, Géodésie, Geography (General), Geodata, Sédimentologie, Geoid, Méthodes mathématiques et quantitatives, Earth, GIS, Oceanic trench, Sciences de la terre et du cosmos, Géodésie appliquée topographie [télédétection], Geophysics, [INFO.INFO-TI] Computer Science [cs]/Image Processing [eess.IV], Sustainability, Disciplines auxiliaires de l'ingénieur, G1-922, Géomagnétisme, [INFO.INFO-MO] Computer Science [cs]/Modeling and Simulation, Géodynamique et tectonique, Hazard, Cartography, Physical geography, Earth science, Earthquake, Science, [SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics, Data analysis, Cities. Urban geography, geoid, Environment, Development, Education, [SDU] Sciences of the Universe [physics], Trench, Géodésie appliquée topographie [géodésie], Geoscience, Mariana Trench, Script, Océanographie physique et chimique, Géomorphologie et orographie, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, [INFO.INFO-LG] Computer Science [cs]/Machine Learning [cs.LG], Programmation et méthodes de simulation, earthquake, Séismologie, [INFO.INFO-IR] Computer Science [cs]/Information Retrieval [cs.IR], GF125, Programmation du calcul numérique, Dataset, Informatics, [INFO.INFO-GR] Computer Science [cs]/Graphics [cs.GR], Geoinformation, Kartographie, [SDU.STU.OC] Sciences of the Universe [physics]/Earth Sciences/Oceanography, Schwerkraft in der freien Luft, shell scripting, Gree-air gravity, Philippine Trench, GMT, Data, geophysics, [INFO.INFO-IA] Computer Science [cs]/Computer Aided Engineering, GB3-5030, Data processing, Generic Mapping Tools, Mapping, [SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Erdbeben, Shell script, Sciences exactes et naturelles, gmt, Risk, Systèmes d'information géographique, Gravity, [INFO] Computer Science [cs], Sciences de l'ingénieur, Modelling, Geophysik, cartography, visualization, Philippine Sea, Pacific Ocean, Code, Seismicity, FOS: Earth and related environmental sciences, Méthodologie de la recherche scientifique, Sémantique des langages de programmation, [SDU.STU.AG] Sciences of the Universe [physics]/Earth Sciences/Applied geology, [SDU.STU.VO] Sciences of the Universe [physics]/Earth Sciences/Volcanology, [SDU.STU] Sciences of the Universe [physics]/Earth Sciences, Visualisierung, Shell-Scripting, Gravimétrie

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