The April 9, 2001 Juan Fernández ridge (Mw 6.7) tensional outer-rise earthquake and its aftershock sequence

Journal of Seismology

Volumn 10, Issue 2, 2006, Pages 163-170

  Fromm, R ^a   Alvarado, P ^a,b   Beck, S L ^a   Zandt, G ^a  

^a University of Arizona   (United States)

^b UNIVERSIDAD NACIONAL DE SAN JUAN   (Argentina)

Author keywords

Outer rise; Ridge; Subduction

Indexed keywords

AFTERSHOCK; EARTHQUAKE EVENT; FOCAL MECHANISM; SEISMICITY;

JUAN FERNANDEZ ISLANDS; PACIFIC ISLANDS; PACIFIC OCEAN;

EID: 33748063611     PISSN: 13834649     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10950-006-9013-3     Document Type: Article

References (25)

1. Beck, S., Barrientos, S., Kausel, E. and Reyes M., 1998, Source characteristics of historic earthquakes along the central Chile subduction zone, J. South American Earth Sci. 11(2), 115-129.
2. Brooks, B.A., Bevis, M. Smalley Jr., R., Kendrick, E., Manceda, R., Lauria, E., Maturana, R. and Araujo, M., 2003, Crustal motion in the southern Andes (26°-36°S): Do the Andes behave like a microplate? Geochem. Geophys. Geosystem. 4, 1-14.
3. Cahill, T.A. and Isacks, B.L., 1992, Seismicity and shape of the subducted Nazca Plate, J. Geophys. Res. 97(B12), 17, 503-17, 529.
4. Chapple, W.M. and Forsyth, D.W., 1979, Earthquakes and bending of plates at trenches, J. Geophys. Res. 84(B12), 6729- 6749.
5. Christensen, D.H. and Ruff, L.J., 1983, Outer-rise earthquakes and seismic coupling, Geophys. Res. Lett. 10(8), 697-700.
6. Christensen, D.H. and Ruff, L.J., 1985, Analysis of the trade-off between hypocentral depth and source time function, Bull. Seismol. Soc. Am. 75(6), 1637-1656.
7. Christensen, D.H. and Ruff, L.J., 1988, Seismic coupling and outer rise earthquakes, J. Geophys. Res. 93 (B11), 13421-13444.
8. Davis, J.C., 1973, Statistics and Data Analysis in Geology, John Wiley & Sons.
9. Dziewonski, A.M. and Anderson, D.L., 1981, Preliminary reference Earth model, Physic. Earth Planet. Interiors 25(4), 297-356.
10. Flueh, E.R., Vidal, N., Ranero, C.R., Hojka, A., Huene, R. von, Bialas, J., Hinz, K., Cordoba, D., Danobeitia, J.J. and Zelt, C., 1998, Seismic investigation of the continental margin off- and onshore Valparaiso, Chile, Tectonophysics 288(1-4), 251-263.
11. Forsyth, D., 1982, Determinations of focal depths of earthquakes associated with the bending of oceanic plates at trenches, J. Geophys. Res. 87(B8), 6853-6864.
12. Hampel, A., Kukowski, N., Bialas, J., Huebscher, C. and Heinbockel, R., 2004, Ridge subduction at an erosive margin: The collision zone of the Nazca Ridge in southern Peru, J. Geophys. Res. 109, B02101, doi:10.1029/ 2003JB002593.
13. Honda, S., Kawakatsu, H. and Seno, T., 1990, The depth of the October 1981 off Chile outer-rise earthquake (Ms=7.2) estimated by a comparision of several waveform inversion methods, Bull. Seismol. Soc. Am. 80(1), 69-87.
14. Kanamori, H., 1971, Seismological evidence for a lithospheric normal faulting - the Sanriku earthquake of 1933, Physic. Earth Planet. Interiors 4, 249-300.
15. Kopp, H., Flueh, E.R., Pepenberg, C. and Klaeschen, D., 2004, Seismic investigations of the O'Higgins Seamount Group and the Juan Fernández Ridge: Aseismic ridge emplacement and lithosphere hydration, Tectonics 23 (TC2009), doi:10.1029/2003TC001590.
16. Lay, T., Astiz, L., Kanamori, H. and Christensen, D.H., 1989, Temporal variation of large intraplate earthquakes in coupled subduction zones, Physic. Earth Planet. Interiors 54(3-4), 258-312.
17. Mueller, S., Choy, G.L. and Spence, W., 1996a, Inelastic models of lithospheric stress - I. Theory and application to outer-rise plate deformation, Geophys. J Int. 125(1), 39-53.
18. Mueller, S., Spence,W. and Choy, G.L., 1996b, Inelastic models of lithospheric stress - II. Implications for outer-rise seismicity and dynamics, Geophys. J. Int. 125(1), 54-72.
19. Randall, G.E., Ammon, C.J. and Owens, T.J., 1995, Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment, Geophys. Res. Lett. 22(13), 1665-1668.
20. Stauder, W., 1968a, Mechanism of the Rat Island earthquake sequence of February 4, 1965, with relation to island arcs and sea-floor spreading, J. Geophys. Res. 73(B12), 3847-3858.
21. Stauder, W., 1968b, Tensional character of earthquake foci beneath the Aleutian trench with relation to sea-floor spreading, J. Geophys. Res. 73 (B24), 7693-7701.
22. Tichelaar, B.W., Christensen, D.H. and Ruff, L.J., 1992, Depth extend of rupture of the 1981 Chilean outer-rise earthquake as inferred from long-period body waves, Bull Seismol. Soc. Am. 82(3), 1236-1252.
23. Huene, R. von, Corvalán, J., Flueh, E.R., Hinz, K., Korstgard, J., Ranero, C.R., Weinrebe, W., 1997, and CONDOR Scientists, Tectonic control of the subducting Juan Fernández Ridge on the Andean margin near Valparaiso, Chile, Tectonics 16(3), 474-488.
24. Waldhauser, F. and Ellsworth, W.L., 2000, A double-difference earthquake location algorithm: Method and application to the northern Hayward fault, California, Bull Seismol. Soc. Am. 90(6), 1353-1368.
25. Yañez, G., Ranero, C.R., Huene, R. von and Diaz, J., 2001, Magnetic anomaly interpretation across the southern central Andes (32°-34°S): The role of the Juan Fernández Ridge in the late Tertiary evolution of the margin, J. Geophys. Res. 106(B4), 6325-6345.