A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
Prime Minister John Key gives a speech at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
Some Canterbury homeowners say their houses are dropping in value because of misleading estimates of damage to foundations from the 2010 and 2011 earthquakes.
A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
Prime Minister John Key holds a dog at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
At least two broken pieces from the Scott statue rest in the Canterbury Museum. The statue toppled in the 22nd February 2011 earthquake.
This poster provides a comparison between the strong ground motions observed in the 22 February 2011 Mw6.3 Christchurch earthquake with those observed in Tokyo during the 11 March 2011 Mw9.0 Tohoku earthquake. The destuction resulting from both of these events has been well documented, although tsunami was the principal cause of damage in the latter event, and less attention has been devoted to the impact of earthquake-induced ground motions. Despite Tokyo being located over 100km from the nearest part of the causative rupture, the ground motions observed from the Tohoku earthquake were significant enough to cause structural damage and also significant liquefaction to loose reclaimed soils in Tokyo Bay. The author was fortunate enough (from the perspective of an earthquake engineer) to experience first-hand both of these events. Following the Tohoku event, the athor conducted various ground motion analyses and reconniassance of the Urayasu region in Tokyo Bay affected by liquefaction in collaboration with Prof. Kenji Ishihara. This conference is therefore a fitting opportunity in which to discuss some of authors insights obtained as a result of this first hand knowledge. Figure 1 illustrates the ground motions recorded in the Christchurch CBD in the 22 February 2011 and 4 September 2010 earthquakes, with that recorded in Tokyo Bay in the 11 March 2011 Tohoku earthquake. It is evident that these three ground motions vary widely in their amplitude and duration. The CBGS ground motion from the 22 February 2011 event has a very large amplitude (nearly 0.6g) and short duration (approx. 10s of intense shaking), as a result of the causal Mw6.3 rupture at short distance (Rrup=4km). The CBGS ground motion from the 4 September 2010 earthquake has a longer duration (approx. 30s of intense shaking), but reduced acceleration amplitude, as a result of the causal Mw7.1 rupture at a short-to-moderate distance (Rrup=14km). Finally, the Urayasu ground motion in Tokyo bay during the 11 March 2011 Tohoku earthquake exhibits an acceleration amplitude similar to the 4 September 2010 CBGS ground motion, but a significantly larger duration (approx 150s of intense shaking). Clearly, these three different ground motions will affect structures and soils in different ways depending on the vibration characteristics of the structures/soil, and the potential for strength and stiffness degradation due to cumulative effects. Figure 2 provides a comparison between the arias intensities of the several ground motion records from the three different events. It can be seen that the arias intensities of the ground motions in the Christchurch CBD from the 22 February 2011 earthquake (which is on average AI=2.5m/s) is approximately twice that from the 4 September 2010 earthquake (average AI≈1.25). This is consistent with a factor of approximately 1.6 obtained by Cubrinovski et al. (2011) using the stress-based (i.e.PGA-MSF) approach of liquefaction triggering. It can also be seen that the arias intensity of the ground motions recorded in Tokyo during the 2011 Tohoku earthquake are larger than ground motions in the Christchurch CBD from the 4 September 2011 earthquake, but smaller than those of the 22 February 2011 earthquake. Based on the arias intensity liquefaction triggering approach it can therefore be concluded that the ground motion severity, in terms of liquefaction potential, for the Tokyo ground motions is between those ground motions in Christchurch CBD from the 4 September 2010 and 22 February 2011 events.
Information on damage caused by the Canterbury earthquakes of 2010 and 2011, for homeowners, tenants, insurers, lawyers, realtors, builders, developers, engineers and building consent authorities.
The New Zealand Army Band perform an item at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
The fence of Estuary Road Preschool is decorated with a hand-painted paper heart and flowers for the anniversary of the 22 February 2011 earthquake.
A dust-covered table in Man's Bakery and Cafe on Hereford Street. On top sits the remains of a lunch abandoned on 22 February 2011.
Mayor Bob Parker with his gold mayoral chains at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
The old Esplanade Tavern is being demolished due to damage suffered in the earthquakes of 2011. Another one of New Brighton's iconic buildings to go.
One framed certificate issued to SCIRT in 2013 to mark winning The Press Champion Canterbury Supreme Award in the Medium-Large Enterprise category.
Messages are written on stones and laid in a circle with flowers at the CTV building site on the anniversary of the 22 February 2011 earthquake.
A photograph captioned by BeckerFraserPhotos, "Castle Rock on the Port Hills, showing where a huge section tumbled down the hillside on 22 February 2011".
Messages are written on stones and laid in a circle with flowers at the CTV building site on the anniversary of the 22 February 2011 earthquake.
Messages are written on stones and laid in a circle with flowers at the CTV building site on the anniversary of the 22 February 2011 earthquake.
Today is census day; the first nationwide stocktake in seven years after the census was called off in 2011 because of the February earthquake in Christchurch.
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
What I found on a walk around the city Christchurch November 20, 2013 New Zealand. www.isaactheatreroyal.co.nz/ en.wikipedia.org/wiki/2011_Christchurch_earthquake
Workers from Christchurch Earthquake Recovery Authority (CERA) are among the crowd at a memorial service in Latimer Square on the anniversary of the 22 February 2011 earthquake.
EQC's manager for the Canterbury home repair programme, Reid Stiven, respondes to claims of misleading estimates of damage to household foundations from the 2010 and 2011 earthquakes.
Food cabinets in Man's Bakery and Cafe on Hereford Street. Food abandoned on 22 February 2011 can still be seen inside. Broken plates also litter the floor.
Food cabinets in Man's Bakery and Cafe on Hereford Street. Food abandoned on 22 February 2011 can still be seen inside. Broken plates also litter the floor.
One model of the Temple for Christchurch with a rectangular base of Jarrah and solid silver conical shapes and wave like walls representing the movement of the 22 February 2011 earthquake. Based on the Temple for Christchurch sculpture that was designed by Hippathy Valentine.