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Images for Earthquake aftershocks; more images...

Images, eqnz.chch.2010

Aftermath of September 4th Earthquake in Canterbury. Shops on Colombo Street in Christchurch - damaged in earthquake and then partially demolished to reduce risk from unstable materials which might otherwise be dislodged in strong winds or subsequent aftershocks. The 1590 aftershocks recorded to date have continued to cause further damage.

Images, UC QuakeStudies

Members of Civil Defence reacting to an aftershock during a briefing in the Christchurch Art Gallery a few hours after the 22 February 2011 earthquake. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence reacting to an aftershock during a briefing in the Christchurch Art Gallery a few hours after the 22 February 2011 earthquake. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, eqnz.chch.2010

Aftermath of September 4th Earthquake in Canterbury. Shops on Colombo Street in Christchurch. The initial 7.1 quake has been followed by around 1590 aftershocks recorded to date - causing further damage to already weakened structures.

Images, UC QuakeStudies

Members of Civil Defence outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of the emergency management teams conferring outside of the Christchurch Art Gallery after an aftershock has hit. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence leaving the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence sitting outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence sitting outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence sitting outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence standing outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Attendees of the 2011 United States New Zealand Partnership Forum conferring with a member of the Earthquake Commission outside the Christchurch Art Gallery. In the background, members of Civil Defence have gathered after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence on laptops outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence on laptops outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence with a pile of medical supplies outside the Christchurch Art Gallery after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, eqnz.chch.2010

Badly damaged in both the September and February quakes and over 6000 aftershocks the Point Pleasant yacht club had started to sink into the Avon estuary before being demolished in July 2011 after the June 6.3 earthquake

Research papers, The University of Auckland Library

In the early morning of 4th September 2010 the region of Canterbury, New Zealand, was subjected to a magnitude 7.1 earthquake. The epicentre was located near the town of Darfield, 40 km west of the city of Christchurch. This was the country’s most damaging earthquake since the 1931 Hawke’s Bay earthquake (GeoNet, 2010). Since 4th September 2010 the region has been subjected to thousands of aftershocks, including several more damaging events such as a magnitude 6.3 aftershock on 22nd February 2011. Although of a smaller magnitude, the earthquake on 22nd February produced peak ground accelerations in the Christchurch region three times greater than the 4th September earthquake and in some cases shaking intensities greater than twice the design level (GeoNet, 2011; IPENZ, 2011). While in September 2010 most earthquake shaking damage was limited to unreinforced masonry (URM) buildings, in February all types of buildings sustained damage. Temporary shoring and strengthening techniques applied to buildings following the Darfield earthquake were tested in February 2011. In addition, two large aftershocks occurred on 13th June 2011 (magnitudes 5.7 and 6.2), further damaging many already weakened structures. The damage to unreinforced and retrofitted clay brick masonry buildings in the 4th September 2010 Darfield earthquake has already been reported by Ingham and Griffith (2011) and Dizhur et al. (2010b). A brief review of damage from the 22nd February 2011 earthquake is presented here

Images, UC QuakeStudies

An attendee of the 2011 United States New Zealand Partnership Forum outside the Christchurch Art Gallery. In the background, members of Civil Defence have gathered after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Attendees of the 2011 United States New Zealand Partnership Forum outside the Christchurch Art Gallery. In the background, members of Civil Defence have gathered after an aftershock hit during one of their briefings. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.