Abstract
In terms of seismic moment or seismic strain release, the deep ocean basins and the ancient cores—the Stable continental interiors’—of the continents are the deadest places on earth. Averaged over the past 200 years, stable continental crust has generated only ~0.3% of the earth’s annual seismic moment release. This translates into ~600 plate boundary events of M w ≥ 6.0 for every one that occurs in stable continental crust. Moreover, in the last 200 years the largest earthquakes to occur in the stable interiors or at the passive continental margins have been the 1819 Kutch, India, event and the 1812 (Feb 7) New Madrid, North America, event. With estimated seismic moments in the range of M0 = 0.7–2.5×1028 dyne-cm, these are great earthquakes (M w =7.S-8.2) yet their moments are nearly two orders of magnitude less than those of maximum plate margin events. Virtually all of the largest stable continental earthquakes (M w ≥ 7.0) occur in crust that has been stretched and extended in a rifting process that leads to either failed rifts imbedded in the continents or to passive margin formation, whereas the largest plate margin events occur in convergent tectonic settings. These are just a few of a number of the fundamental seismological differences between stable continental interiors and plate boundaries that are explored and quantified in this paper.
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References
Anderson, J. G. (1986). Seismic strain rates in the central and eastern United States. Bull. Seism. Soc. Am., 76, 273–290.
Bowman, J. R., T. Jones, G. Gibson, A. Corke, R. Thompson, and A. Camacho (1988). Tennant Creek earthquakes of 22 January 1988: Reactivation of a fault zone in the Proterozoic Australian shield (abst.). EOS, Trans. Am. Geophys. U., 69, 400.
Chen, W.-P. and P. Molnar (1977). Seismic moments of major earthquakes and the average rate of slip in central Asia. J. Geophys. Res., 82, 2945–2969.
Cogley, J. G. (1984). Continental margins and the extent and number of the continents. Rev. Geophys. Space Phys., 22, 101–122.
Coppersmith, K. J., A. C. Johnston, A. G. Metzger, and W. J. Arabasz (1987). Methods for assessing maximum earthquakes in the central and eastern United States. Working Report, EPRI Research Project 2556–12, Electric Power Research Institute, Palo Alto, California.
Coppersmith, K. J. and R. R. Youngs (1989). Issues regarding earthquake source characterization and seismic hazard analysis within passive margins and stable continental interiors, (in press, this volume).
Dart, R. L. and M. L. Zoback (1987). Principal stress directions on the Atlantic continental shelf inferred from the orientations of borehole elongations. U. S. Geol. Surv. Open-File Report 87–283, 43 pp.
Davies, G. F. and J. N. Brune (1971). Regional and global fault slip rates from seismicity. Nature Phys. Sci., 229, 101–107.
Denham, D. (1988). Australian seismicity—the puzzle of the not so stable continent, (in press, Seism. Res. Lett., Special Issue: Seismogenesis in the Eastern United States).
Hanks, T. C. and H. Kanamori (1979). A moment magnitude scale. J. Geophys. Res., 84, 2348–2350.
Herrmann, R. B., S. Cheng, and O. W. Nuttli (1978). Archeoseismology applied to the New Madrid earthquakes of 1811–1812. Bull. Seism. Soc. Am., 68, 1751–1759.
ISC (1918–1986). Bulletin of the International Seismological Centre, 1964–86, and the International Seismological Summary, 1918–1963. Richmond, Edinburgh, and Cambridge (ISS), and Edinburgh and Berkshire (ISC), United Kingdom.
Jin, A. and K. Aki (1988). Spatial and temporal correlation between coda Q and seismicity in China. Bull. Seism. Soc. Am., 78, 741–769.
John, V. (1983). Coda-Q studies in the Indian subcontinent. Masters thesis, Saint Louis University, St. Louis, Missouri, 99 pp.
Johnston, A. C. (1987). Suppression of earthquakes by large continental ice sheets. Nature, 330, 467–469.
Kanamori, H. (1988). Importance of historical seismograms for geophysical research, in Lee, W. H. K., H. Meyers, and K. Shimazaki (eds.), Historical Seismograms and Earthquakes of the World, Academic Press, San Diego, California, 16–33.
Lowell, J. D. and G. J. Genik (1972). Sea-floor spreading and structural evolution on southern Red Sea. Bull. Am. Assoc. Petro. Geol., 56, 247–259.
Molnar, P. and Q. Deng (1984). Faulting associated with large earthquakes and the average rate of deformation in central and eastern Asia. J. Geophys. Res., 89, 6203–6227.
Molnar, P. and P. Tapponnier (1975). Cenozoic tectonics of Asia: Effects of a continental collision. Science, 189, 419–426.
Morgan, W. J. (1988). The jubilee of plate tectonics (summary of comments). EOS, Trans. Am. Geophys. U., 69, 584.
NOAA (1987). Earthquake Hypocenter Data File (magnetic tape). National Geophysical Data Center, National Oceanic and Atmospheric Administration, Boulder, Colorado.
Nuttli, O. W. (1983). Average seismic source parameters for mid-plate earthquakes. Bull. Seism. Soc. Am., 73, 519–535.
Oldham, R. D. (1926). The Cutch (Kachh) earthquake of 16th June 1819 with a revision of the great earthquake of 12th June 1897. Mem. Geol. Surv. India, 46, Part 2, Gov. India Centr. Publ. Br., Calcutta, 1–77.
Pulli, J. J. and K. Aki (1981). Attenuation of seismic waves in the lithosphere: comparison of active and stable areas, in Beavers, J. E. (ed.), Earthquakes and Earthquake Engineering—Eastern United States. Ann Arbor Science Publications, Ann Arbor, Michigan, 129–142.
Singh, S. K. and R. B. Herrmann (1983). Regionalization of crust al coda Q in the continental United States. J. Geophys. Res., 88, 527–538.
Sykes, L. R. (1978). Intraplate seismicity, reactivation of preexisting zones of weakness, alkaline magmatism, and other tectonism postdating continental fragmentation. Rev. Geophys. Space Phys., 16, 621–688.
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Johnston, A.C. (1989). The Seismicity of ‘Stable Continental Interiors’. In: Earthquakes at North-Atlantic Passive Margins: Neotectonics and Postglacial Rebound. NATO ASI Series, vol 266. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2311-9_18
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DOI: https://doi.org/10.1007/978-94-009-2311-9_18
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