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Spatial-temporal variability of seismic hazard in peninsular India

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Title Spatial-temporal variability of seismic hazard in peninsular India
 
Creator JAISWAL, K
SINHA, R
 
Subject incomplete data files
historical seismicity
earthquake
parameters
magnitude
regions
shield
map
seismicity
seismic hazard
maximum likelihood procedure
seismotectonics
stable continental regions
 
Description This paper examines the variability of seismic activity observed in the case of different geological zones of peninsular India (10 degrees N-26 degrees N; 68 degrees E-90 degrees E) based on earthquake catalog between the period 1842 and 2002 and estimates earthquake hazard for the region. With compilation of earthquake catalog in terms is of moment magnitude and establishing broad completeness criteria, we derive the seismicity parameters for each geologic zone of peninsular India using maximum likelihood procedure. The estimated parameters provide the basis for understanding the historical seismicity associated With different geological zones of peninsular India and also provide important inputs for future seismic hazard estimation studies in the re-ion. Based on present investigation, it is clear that: earthquake recurrence activity in various geologic zones of peninsular India is distinct and varies considerably between its cratonic and rifting zones. The study identifies the likely hazards due to the possibility of moderate to large earthquakes in peninsular India and also presents the influence of spatial rate variation in the seismic activity of this region. This paper presents the influence of source zone characterization and recurrence rate variation pattern on the maximum earthquake magnitude estimation. The results presented in the paper provide a useful basis for probabilistic seismic hazard studies and microzonation studies in peninsular India.
 
Publisher INDIAN ACAD SCIENCES
 
Date 2011-08-01T23:01:05Z
2011-12-26T12:53:32Z
2011-12-27T05:39:51Z
2011-08-01T23:01:05Z
2011-12-26T12:53:32Z
2011-12-27T05:39:51Z
2008
 
Type Article
 
Identifier JOURNAL OF EARTH SYSTEM SCIENCE, 117(), 707-718
0253-4126
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8569
http://hdl.handle.net/10054/8569
 
Language en