Multiple-event relocation of historic earthquakes along Blanco Transform Fault Zone, NE Pacific

Geophysical Research Letters

Volumn 30, Issue 19, 2003, Pages

  Cronin, Vincent S ^a   Sverdrup, Keith A ^b  

^a BAYLOR UNIVERSITY   (United States)

^b UNIVERSITY OF WISCONSIN MILWAUKEE   (United States)

Author keywords

Blanco Transform Fault Zone; Earthquakes; Gorda Ridge; Juan de Fuca Ridge; Mid ocean ridge; Transform fault

Indexed keywords

GEOPHYSICS; HYDROPHONES; SEISMIC PROSPECTING;

EPICENTERS;

EARTHQUAKES;

EARTHQUAKE; EARTHQUAKE EPICENTER; HISTORICAL RECORD; MID-OCEAN RIDGE; RELOCATION; TRANSFORM FAULT;

JUAN DE FUCA RIDGE; PACIFIC OCEAN;

EID: 17544398823     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2003GL018086     Document Type: Article

References (27)

1. Bebel, D. J., P. R. Stoddard, and M. T. Woods, A comparison of epicenter relocation techniques: A case study for the Juan de Fuca plate, Phys. Earth Planet. Int., 75, 25-38, 1992.
2. Bergman, E. A., and S. C. Solomon, Transform fault earthquakes in the North Atlantic: Source mechanism and depth of faulting, J. Geophys. Res., 93, 9027-9057, 1988.
3. Dauteuil, O., Fault pattern from seabeam processing-The western part of the Blanco fracture zone (NE Pacific), Mar. Geophys. Res., 17, 17-35, 1995.
4. Dziak, R. P., and C. G. Fox, The January 1998 earthquake swarm at Axial Volcano, Juan de Fuca Ridge: Hydroacoustic evidence of seafloor volcanic activity, Geophys. Res. Lett., 26, 3429-3432, 1999.
5. Dziak, R. P., C. G. Fox, and R. W. Embley, Relationship between the seismicity and geologic structure of the Blanco Transform Fault Zone, Mar. Geophys. Res., 13, 203-208, 1991.
6. Dziak, R. P., C. G. Fox, R. W. Embley, J. L. Nabelek, J. Braunmiller, and R. A. Koski, Recent tectonics of the Blanco Ridge, eastern Blanco Transform Fault Zone, Mar. Geophys. Res., 21, 423-450, 2000.
7. Dziak, R. P., W. W. Chadwick Jr., C. G. Fox, and R. W. Embley, Hydrothermal temperature changes at the southern Juan de Fuca Ridge associated with a Mw 6.2 Blanco Transform earthquake, Geology, 31, 119-122, 2003.
8. Embley, R. W., and D. S. Wilson, Morphology of the Blanco transform fault zone - NE Pacific: Implications for its tectonic evolution, Mar. Geophys. Res., 14, 25-45, 1992.
9. Embley, R. W., L. D. Kulm, G. Massoth, D. Abbott, and M. Holmes, Morphology, structure, and resource potential of the Blanco Transform Fault Zone, D. W. Scholl, A. Grantz, and J. G. Vedder, [editors], in Geology and resource potential of the continental margin of western North America and adjacent ocean basins - Beaufort Sea to Baja California, Houston, TX, Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, 6, 549-561, 1987.
10. Fox, C. G., and D. E. Hayes, Quantitative methods for analyzing the roughness of the seafloor, Rev. Geophys., 23, 1-48, 1985.
11. Fox, C. G., R. P. Dziak, H. Matsumoto, and A. E. Schreiner, Potential for monitoring low-level seismicity on the Juan de Fuca Ridge Using fixed hydrophone arrays, Mar. Tech. Soc. J., 27, 22-30, 1994.
12. Fox, C. G., H. Matsumoto, and T.-K. A. Lau, Monitoring Pacific Ocean seismicity from an autonomous hydrophone array, J. Geophys. Res., 106, 4183-4206, 2001.
13. Harvard Seismology, Harvard Centroid Moment Tensor catalog, http://www.seismology.harvard.edu/CMTsearch.html, Harvard Seis., Cambridge, Mass., 2003.
14. Herrin, E., Seismological tables for P phases, Bull. Seis. Soc. Am., 58, 1193-1241, 1968.
15. Johnson, S. H., and P. R. Jones, Microearthquakes located on the Blanco fracture zone with sonobuoy arrays, J. Geophys. Res., 83, 255-261, 1978.
16. Jones, P. R., and S. H. Johnson, Sonobuoy array measurements of active faulting on the Gorda Ridge, J. Geophys. Res, 83, 3435-3440, 1978.
17. Jordan, T. H., and K. A. Sverdrup, Teleseismic location techniques and their application to earthquake clusters in the south-central Pacific, Bull. Seis. Soc. Am, 71, 1105-1130, 1981.
18. Juteau, T., D. Bideau, O. Dauteuil, G. Manach, D. D. Naidoo, P. Nehlig, H. Ondreas, M. A. Tivey, K. X. Whipple, and J. R. Delaney, A submersible study in the western Blanco Fracture Zone: Structure and evolution during the last 1.6 Ma, Mar. Geophys. Res., 17, 399-430, 1995.
19. McManus, D. A., 1965, Blanco Fracture Zone, Northeast Pacific, Mar. Geol., 3, 429-455, 1965.
20. Northrop, J., Accuracy of earthquake epicenters on the Gorda ridge, Bull. Seis. Soc. Am., 60, 265-267, 1970.
21. Northrop, J., H. W. Menard, and F. K. Duennebier, Seismic and bathymetric evidence of a fracture zone on Gorda Ridge, Science, 161, 688-690, 1968.
22. Poupinet, G., On the relation between P-wave travel time residuals and the age of continental plates, Earth Planet. Sci. Lett., 43, 149-161, 1979.
23. Stoddard, P. R., and M. T. Woods, Master event relocation of Gorda block earthquakes: Implications for deformation, Geophys. Res. Lett., 17, 961-964 1990.
24. Sverdrup, K. A., Multiple-event relocation of earthquakes on and near the Gorda Ridge, Geophys. Res. Lett., 13, 674-677, 1986.
25. Sverdrup, K. A., Multiple-event relocation of earthquakes near the Gorda Rise-Mendocino Fracture Zone intersection, Geophys. Res. Lett., 14, 347-350, 1987.
26. Sverdrup, K. A., K. C. MacDonald, and W. A. Prothero, Ocean bottom seismometer detection of earthquakes on the Gorda Rise near 41.5°N, Mar. Geophys. Res., 7, 439-453, 1985.
27. Tolstoy, I., and W. M. Ewing, The T-phase of shallow-focus earthquakes, Bull. Seis. Soc. Am., 40, 25-51, 1950.