Publication Date:
2017-04-27
Description:
This article provides insights into the observed ground-motion records from the 14 November 2016 M w 7.8 Kaikoura earthquake. Specific detail is given in examining observations in the near source and those in the urban Wellington and Lower Hutt regions through a combination of time series and response spectra to help in understanding salient source, path, and site effects. Several ground motions exceeding 1.0 g horizontal are recorded, as well as up to 2.7 g in the vertical direction at one location. The complexity associated with multifault rupture is clearly evident in several strong-motion stations in the near-source region. Significant site-effect case histories from sedimentary and reclaimed soil deposits and topographic effects are observed in the Wellington and Lower Hutt regions. To provide further insights, predictions from preliminary broadband ground-motion simulations are examined to more directly interpret the observations.
Print ISSN:
0895-0695
Electronic ISSN:
1938-2057
Topics:
Geosciences
