[PDF][PDF] Vertical strong ground motions characteristics of the Northridge earthquake
MB Hudson, BD Skyers, L Marshall - Memorias, XI World Conference on …, 1996 - iitk.ac.in
ABSTRACT The January 17, 1994, moment magnitude 6.7 Northridge earthquake has
provided a large set of strong ground motion data, including a significant amount of data
near the rupture zone of the earthquake. The ratio of the vertical spectral ground motions to
the horizontal spectral ground motions decreases with distance from the fault. In addition,
the vertical to horizontal spectral ratio has a drastic increase at short periods, especially for
motions recorded closer to the fault. The ratio decreases from the large peak, then begins …
provided a large set of strong ground motion data, including a significant amount of data
near the rupture zone of the earthquake. The ratio of the vertical spectral ground motions to
the horizontal spectral ground motions decreases with distance from the fault. In addition,
the vertical to horizontal spectral ratio has a drastic increase at short periods, especially for
motions recorded closer to the fault. The ratio decreases from the large peak, then begins …
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