Abstract
IN October 1969, the RV Jean Charcot made a geophysical survey of the Horseshoe seamount and abyssal plain west of Gibraltar Straits and south-west of Cape Saint-Vincent, Portugal; this is the eastern end of the Azores–Gibraltar seismic zone1 which is a compressive plate boundary2,3. During this survey a series of deep-sea photographs were obtained near the location of the last major earthquake of February 28, 1969 (magnitude 7.3 to 8.0, location 36.0° N 10.6° W according to the USCGS preliminary report).
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References
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Le Pichon, X., Bonnin, J., and Pautot, G., Proc. Upper Mantle Symposium (Flagstaff, US, 1970).
Banghar, A. R., and Sykes, L. R., J. Geophys. Res., 74, 632 (1969).
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LE PICHON, X., AUZENDE, J., PAUTOT, G. et al. Deep Sea Photographs of an Active Seismic Fault Zone near Gibraltar Straits. Nature 230, 110–111 (1971). https://doi.org/10.1038/230110a0
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DOI: https://doi.org/10.1038/230110a0
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