Abstract
The earthquake swarm which occurred in 1996, in the period from May 29 to June 9, was recorded by both analog and digital stations and more than 120 small earthquakes (M< 2.5) were recorded by Armenian and Georgian networks during that time. Focal mechanisms for 19 relatively strong events were determined using first polarities of direct P waves. The variety of mnethods was used to analyze focal mechanism solutions. Based on obtained results one may conclude that these earthquakes are not related to well known and mapped active faults. Using Gepart and Forsuth’s improved method the regional stress tensor was determined.
We have analyzed in detail a sequence of earthquakes in Javakhet Upland and find some peculiarities of that. A detailed study of the earthquake catalogue showed that this swarm as some of preceding ones, was followed by relatively strong earthquake in Iran and Turkey
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Bullen, K.E., Bruce A.Bolt(1993) An Intrudaction to the Theory of Seismology, Cambridge University Press. Printed in the Great Britain.
Christopher H. Scholz (1994) The Mechanics of Earthquakes and Faulting, Cambridge University Press. Printed in the USA
Gepart J. W. and Forsyth D. W.(1984) An Improved Method for Determining the Regional Stress Tenzor Using Earthquake Focal Mechanism Data: Aplication To the San Fernando Earthquake Sequence, Journal of Geophisical research, Vol.89, No. B 11, Pages 9305–9320,October 10,
Lee, W.K., Stewart, S. W.(1981) Principles and Applications of Microearthquake Networks, Academic Press, New York.
McKenzie, D. E., (1969) The relation between fault plain solutions for earthquakes and the directions of the principal stresses, Bull. seismol. Soc. Am., 59, 591–601.
Thorne, L., Terry C.W. (1995) Modern Global Seismology, Academic Press, San Diego.
Zoback M. L. (1992) First and Second —Order Patterns of Stress in the Lithosphere: The World Stress Map Project, Journal of Geophisical research, Vol.97, No.B8, Pages 11, 703–11, 728, July30, 1992.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Tovmasyan, A.K. (2000). Southern Javakhet Earthquake Swarm. Stress Tensor Orientation Derived from Focal Mechanism Data. In: Balassanian, S., Cisternas, A., Melkumyan, M. (eds) Earthquake Hazard and Seismic Risk Reduction. Advances in Natural and Technological Hazards Research, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9544-5_11
Download citation
DOI: https://doi.org/10.1007/978-94-015-9544-5_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-5497-5
Online ISBN: 978-94-015-9544-5
eBook Packages: Springer Book Archive