Christchurch Press Image: Iain McGregor 2010:09:06 01:04:14

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Major earthquake hits Christchurch. Etusia Kaleuati slept in her van in a city car park with her 5 children. Etusia Kaleuati pictured with two of her children Uzziel (2) and Juliah (8 months)".

Christchurch Press Image: Iain McGregor 2010:09:04 23:44:39

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Major earthquake hits Christchurch. Taking refuge at Linwood college, the McLeod family are too scared to go back to their house. From left: Lorraine McLeod, Aaron McLeod (11) and Grant McLeod".

20130112_2581_G12-14 How the levels have changed

Images, eqnz.chch.2010

Post the earthquakes land has sunk and in this case the track is below high tide level. It would have been at least 500mm above the highest tide level prior to the recent earthquakes that started on 04/09/10.

Fairfax Media Auckland Bureau Image: John Selkirk 2010:10:04 21:26:09

Images, UC QuakeStudies

Photograph captioned by Fairfax, "The Canterbury Earthquake Business Benefit Dinner hosted by the Prime Minister, was held tonight at Sky City in Auckland. Shown at the dinner is Eddie Berla who managed to get Richie McCaw's Bid paddle signed by the All Black for the woman (Helen) at Sky City who made the bid paddles for the evening".

Quake Damage

Images, eqnz.chch.2010

When I lived in Christchurch back in 2004-2005, this was a building I went past on the bus every day to get to and from work in the city. After the big quake on 04/09/10 (7.1 magnitude), its been seriously damaged. As have many more of the shops in this area. Thankfully no lives were lost in the quake, and I'm glad I wasnt there to feel it eith...

20140904_9091_EOS M-22 23 Velsheda Street today (2014)

Images, eqnz.chch.2010

Today (04/09/14) marks the fourth anniversary since the first earthquake rocked the city and greater Christchurch area. That first quake was magnitude 7.1, and luckily there was only one fatality (possible a heart attack). Since then we have had over 14,000 quakes, most very small in magnitude, but well over 500 of magnitude 4 or greater. 5...

South New Brighton bridge damage (under repair)

Images, eqnz.chch.2010

20130211_2645_1D3-840 South New Brighton bridge damage (under repair) Earthquake damage (that right hand abutment should be vertical with the bridge and the hand rail level). Bridge is closed to eastbound traffic (to left) and has a 3500kg weight limit as well. The eastern approach is the same. Damage caused mainly in the 04/09/10 and 22/02/11...

A summary of strong ground motions observed in the Canterbury earthquake s…

Research papers, University of Canterbury Library

This paper provides a summary of the ground motions observed in the recent Canterbury, New Zealand earthquake sequence. The sequence occurred in a region of relatively moderate seismicity, 130km to the east of the Alpine Fault, the major plate-boundary in the region. From an engineering perspective, the sequence has been primarily comprised of the initial 04/09/2010 Darfield earthquake (Mw7.1) followed by the 22/02/2011 Christchurch earthquake (Mw6.3), and two aftershocks on 13/06/ 2011 (Mw5.3 and 6.0, respectively). The dense spacing of strong motions in the region, and their close proximity to the respective causative faults, has resulted in strong ground motions far exceeding the previous catalogue of strong motion observed in New Zealand. The observed ground motions have exhibited clear evidence of: (i) near-source directivity; (ii) sedimentary basin focusing, amplification and basin effect refraction; (iii) non-linear site response; (iv) cyclic mobility postliquefaction; and (v) extreme vertical ground motions exceeding 2g, among others.