Please use this identifier to cite or link to this item:
Authors: Scalera, G. 
Title: The geodynamic meaning of the great Sumatran earthquake: Inferences from short time windows
Issue Date: 1-Jun-2005
Series/Report no.: n.35 (June), 2005
Keywords: Polhody anomalies, seismogenesis
geodynamics, expanding Earth
Subject Classification04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes 
04. Solid Earth::04.03. Geodesy::04.03.02. Earth rotation 
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics 
04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics 
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics 
Abstract: The difference between the value of seismic moment computed using the surface wave data and the value derived from the normal modes of the Earth requires reinterpretation of the focal mechanism of the Great Sumatran Earthquake (TU=26 December 2004 - 00h 58m, Lat=3.3°N, Lon=95.8°E, H=30 km, M=9.3) based on the second conjugate – near vertical CMT fault plane solution. The displacement of the Earth’s instantaneous rotation pole – observed at ASI of Matera, Italy –, the seismic data (USGS) in the two days following the main shock, the high frequency P-wave radiation, the geomorphologic data, and the satellite data of uplift/subsidence of the coasts (IGG) converge toward this interpretation. A thorough revision or a complete overcoming of the subduction concept is then needed.
Appears in Collections:Manuscripts
Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Sumatra short time windows NCGTjune05(35).pdf1.53 MBAdobe PDFView/Open
Show full item record

Page view(s)

Last Week
Last month
checked on Aug 21, 2018


checked on Aug 21, 2018

Google ScholarTM