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Images for faults; more images...
IMG_2438
Images, eqnz.chch.2010
The faultline cuts across Telegraph Road, leaving a kink in its originally straight alignment; aftermath of the magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2444
Images, eqnz.chch.2010
The faultline cuts across Telegraph Road, leaving a kink in its originally straight alignment; aftermath of the magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2234
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2253
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2423
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 2 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2428
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 2 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2237
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2240
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2247
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 3 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2419
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2433
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 2 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2236
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2256
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2316
Images, eqnz.chch.2010
Collapsed silos at David Bell Daffodil Farm in Leeston; aftermath of the magnitude 7.1 earthquake that struck mid-Canterbury on Saturday 4 September 2010.
IMG_2442
Images, eqnz.chch.2010
The faultline cuts across Telegraph Road, leaving a kink in its originally straight alignment; aftermath of the magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2231
Images, eqnz.chch.2010
On the previously unknown faultline on Highfield Road in mid-Canterbury! This was where two tectonic plates slipped, causing the magnitude 7.1 earthquake on Saturday 4 September 2010.
IMG_2439
Images, eqnz.chch.2010
The faultline cuts across Telegraph Road, leaving a kink in its originally straight alignment; aftermath of the magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2255
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2420
Images, eqnz.chch.2010
Slipping of the tectonic plates caused tension cracks on this previously unknown faultline that runs through this paddock; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2426
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 2 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2431
Images, eqnz.chch.2010
This originally straight farm fence has been laterally displaced at least 2 metres where it crosses the previously unknown faultline from which the Saturday 4 September 2010 earthquake originated.
IMG_2422
Images, eqnz.chch.2010
Looking along this previously unknown faultline that runs through this paddock, note how the ground had heaved and subsided; magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
IMG_2440
Images, eqnz.chch.2010
The faultline cuts across Telegraph Road, leaving a kink in its originally straight alignment; aftermath of the magnitude 7.1 earthquake in mid-Canterbury on Saturday 4 September 2010.
Marlborough Civil Defence boss says Canterbury and Kaikoura quakes dress r…
Audio, Radio New Zealand
Disaster officials warn that no amount of planning can prepare the country for the reality of a large-scale earthquake. The South Island Alpine Fault Earthquake Response Forum is in Nelson as part of its awareness-raising road-show, as the region is vulnerable to large quakes in both the south and north islands. Tracy Neal reports.
IMG_2319
Images, eqnz.chch.2010
Damage to the St John The Evangelist Catholic Church in Leeston suffered during the magnitude 7.1 earthquake that struck mid-Canterbury on Saturday 4 September 2010.
IMG_2271
Images, eqnz.chch.2010
Hehehe ..... did the surveyors get the road setout wrong? This previously straight road is now kinked across this previously unknown faultline along which the Saturday 4 September 2010 magnitude 7.1 earthquake originated.
IMG_2272
Images, eqnz.chch.2010
Hehehe ..... did the surveyors get the road setout wrong? This previously straight road is now kinked across this previously unknown faultline along which the Saturday 4 September 2010 magnitude 7.1 earthquake originated.
IMG_2274
Images, eqnz.chch.2010
The farmers in this area swore that this road was straight when they were returning from the pub on Friday 3 September 2010, the night before the magnitude 7.1 earthquake struck.
IMG_2273
Images, eqnz.chch.2010
The farmers in this area swore that this road was straight when they were returning from the pub on Friday 3 September 2010, the night before the magnitude 7.1 earthquake struck.
Empirical analysis of near-fault forward-directivity effects in the 2010-1…
Research papers, University of Canterbury Library
In this paper, the characteristics of near-fault ground motions recorded during the Mw7.1 Darfield and Mw 6.2 Christchurch earthquakes are examined and compared with existing empirical models. The characteristics of forward-directivity effects are first examined using a wavelet-based pulse-classification algorithm. This is followed by an assessment of the adequacy of empirical models which aim to capture the effect of directivity effects on amplifying the acceleration response spectra; and the period and peak velocity of the forward-directivity pulse. It is illustrated that broadband directivity models developed by Somerville et al. (1997) and Abrahamson (2000) generally under-predict the observed amplification of response spectral ordinates at longer vibration periods. In contrast, a recently developed narrowband model by Shahi and Baker (2011) provides significantly improved predictions by amplifying the response spectra within a small range of periods surrounding the directivity pulse period. Although the empirical predictions of the pulse period are generally favourable for the Christchurch earthquake, the observations from the Darfield earthquake are significantly under-predicted. The elongation in observed pulse periods is inferred as being a result of the soft sedimentary soils of the Canterbury basin. However, empirical predictions of the observed peak velocity associated with the directivity pulse are generally adequate for both events.