QuakeCoRE-GEER-EERI Earthquake Reconnaissance Report is now available!

  A collaboration between QuakeCoRE, GEER, and EERI has produced a new Learning From Earthquakes (LFE) reconnaissance report that summarizes impacts from the M7.8 Kaikoura, New Zealand Earthquake on November 14, 2016. Download the QuakeCoRE-GEER-EERI Earthquake Reconnaissance Report (3 MB PDF) The...


Comparison of Recorded and Design Ground-Motion Spectra

November 29, 2016 by  
Filed under Ground motions and Seismology

A comparison of the recorded and design ground motion spectra can be found here: comparison-of-recorded-and-design-ground-wgn-and-si The Geonet strong-motion records in .csv format and their plots reprocessed with broader passbands to retain content beyond 4-sec can be found here: https://drive.google.com/open?id=0B9-RKNbC1wCpeVdjSnQ1RXA5TlU


Spectral Accelerations in Wellington/Hutt as a percentage of SLS/ULS

November 25, 2016 by  
Filed under Ground motions and Seismology

The document in the link below provides a summary of the spectral accelerations at 0.3, 1, 1.5 and 2 seconds as a percentage of SLS and ULS design spectral accelerations for a typical building in the region.  Only Site subsoil class C and D are shown here (C outlined in cyan, D outlined in blue).  Sp...


Seismic Wave Propagation Model

November 24, 2016 by  
Filed under Ground motions and Seismology

This simulation which shows how the seismic waves of the magnitude 7.8 earthquake propagated across Central New Zealand. Citation: Kaneko Y, Tape C, Casarotti E. 2016. 2016 M7.8 Kaikoura Earthquake Computer Simulation. GNS Science. http://dx.doi.org/10.21420/G27P4P


Magnitude-Distance Characteristics at Urban Centres

November 19, 2016 by  
Filed under Ground motions and Seismology

A summary document that shows earthquake magnitudes and their distance from a range of urban centres is available at the link below. The characteristics over time up until the 19/11/2016 are presented. magnitude_distancedetails_urbancentres_191116


Comparison of Recorded and Design Ground-Motion Spectra for Wellington Deep Soil Sites

November 18, 2016 by  
Filed under Ground motions and Seismology

A summary document which explains the Site Class D Response Spectra and compares to design levels can be found here: comparisonofrecordedanddesigngroundmotionspectra  


Response Spectra at Strong Motion Recording Sites

November 18, 2016 by  
Filed under Ground motions and Seismology

Response spectra at all strong motion sites can be found at the link provided below. This viewer allows the user to click on any station on to view the measured response spectra plotted against code limits at that site. Link: Response Spectra at Strong Motion Sites (Note: This post needs to be opened...


Wellington Ground Motion Characteristics

November 17, 2016 by  
Filed under Ground motions and Seismology

The document in the link below summarises the ground motion characteristics in the Kaikoura event at a number of strong motion stations across Wellington. The ground motions from the 2013 Seddon event are included in the document and plotted using the same scale as the Kaikoura event. A link to the document...


Response Spectra

November 16, 2016 by  
Filed under Ground motions and Seismology

           


Preliminary Motion Characteristics

November 15, 2016 by  
Filed under Ground motions and Seismology

The primary shock of the November 13 event occured 53-km NNE of Amberely at 11:02:56 UTC (12:02 am local time) at a depth of 23-km. Local magnitude has been reported by GeoNet as M7.8.  The closest free-field station (Ward) recorded a peak ground acceleration of 1.2g  approximately 25-km from the...


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