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Auteur T. Majumba |
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Generation and study of satellite gravity over Gujarat, India and their possible correlation with earthquake occurences / T. Majumba in Geocarto international, vol 25 n° 4 (July 2010)
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Titre : Generation and study of satellite gravity over Gujarat, India and their possible correlation with earthquake occurences Type de document : Article/Communication Auteurs : T. Majumba, Auteur ; R. Bhattacharyya, Auteur Année de publication : 2010 Article en page(s) : pp 269 - 280 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] anomalie de pesanteur
[Termes IGN] champ de pesanteur local
[Termes IGN] corrélation
[Termes IGN] données GRACE
[Termes IGN] épicentre
[Termes IGN] Inde
[Termes IGN] levé gravimétrique
[Termes IGN] risque naturel
[Termes IGN] séismeRésumé : (Auteur) High-resolution satellite gravity data have been generated and utilized to infer subsurface geological structures in the area of devastating earthquake that struck the Bhuj region in Gujarat on 26 January 2001. Latitudinal gravity profiles have been generated in the Bhuj, Anjar and IBF regions across the epicentres (23.5° N, 69.8° E/Mw 7.0 in 2001; 23.2° N, 70° E/Mw 7.0 in 1956; 24.2° N, 69.2° E/Mw 7.8 in 1819). Substantial differences in gravity anomaly patterns as high as 37 mGal could be observed existing near the epicentre regions. These gravitational differences might have caused due to the plate tectonic processes and due to the changes in densities of different lithospheric zones/sedimentary layers. Temporal variations of the satellite-derived gravity and their probable relations with already occurred major earthquakes in this region have been studied. Hence we conclude that drastic changes in gravity anomalies can be considered as a precursor for occurrences of substantially large earthquakes. Numéro de notice : A2010-278 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040903486148 Date de publication en ligne : 09/04/2010 En ligne : https://doi.org/10.1080/10106040903486148 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30472
in Geocarto international > vol 25 n° 4 (July 2010) . - pp 269 - 280[article]Exemplaires(1)
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