Abstract
THE field study of the Romanian earthquake of 1977 suggests that strong ground motions, for engineering purposes, may differ considerably from those currently adopted for design on the basis of US West Coast-type of recordings. The earthquake of March 4 1977 in Romania had a magnitude of M = 7.2 and a depth of about 90 km. It originated from the source of intermediate-depth earthquakes of Vrancea, beneath the bend of the Carpathian mountain arc, at 45.8°N, 26.7°E, a source similar to that of intermediate events in the Hindu Kush.
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References
Brune, J. N. The Physics of Earthquake Strong Motion (eds Lomnitz.C. & Rosen-blueth, E.) (Elsevier, Amsterdam 1976).
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AMBRASEYS, N. Long-period effects in the Romanian earthquake of March 1977. Nature 268, 324–325 (1977). https://doi.org/10.1038/268324a0
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DOI: https://doi.org/10.1038/268324a0
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