Post-2004 mega-earthquake temporal velocity variation at Andaman Islands from GPS measurements

Autor:	S. K. Som, Vijay Shivgotra, Ashim Kumar Saha
Rok vydání:	2014
Předmět:	Atmospheric Science Subduction business.industry Geodesy Mega Discontinuity (geotechnical engineering) Orientation (geometry) Earth and Planetary Sciences (miscellaneous) Global Positioning System Variation (astronomy) business Bay Seismology Geology Water Science and Technology
Zdroj:	Natural Hazards. 72:1051-1062
ISSN:	1573-0840 0921-030X
DOI:	10.1007/s11069-014-1051-5
Popis:	Post-mega-earthquake velocity adjustment at Andaman region was found to vary with time. Coordinate repeatability for 5-year span shows changeover from post-seismic to inter-seismic period in between 900 and 1,000 days from the mega-earthquake. Excluding Havlock Island, all sites move from south to north and from east to west. Velocity vectors gradually rotated from the nearly perpendicular orientation after the mega-earthquake to parallel orientation with the subduction interface in later phase. Velocities in India 2005 reference frame indicate the presence of a structural discontinuity between Bedonabad and Chidiatapu at south Andaman, between Padmanavapuram and Kaushalyanagar at middle Andaman and between Aerial Bay and Radhanagar at north Andaman.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::279f2eb22296083ac9370ffdeb18c40d https://doi.org/10.1007/s11069-014-1051-5 Zobrazit plný text záznamu Full text from SpringerLink