It was relatively shallow around 10 km deep and produced the strongest earthquake groundshaking ever recorded in new zealand. Some damaging aftershocks followed the main event, the strongest of which was a magnitude 6. Of course as weve all heard this was a particularly unfortunate event because of the location and modest depth of its source. Aftershocks, triggered earthquakes, and christchurchs. Writing on the geonet website yesterday, dr ken gledhill described the magnitude7. Gns science and geonet developed aftershock forecasts based on the. Case histories of recent, wellstudied earthquakes demonstrate the interdisciplinary nature of earthquake science.
Earthquakes from the last 365 days that may have caused shaking weak or greater in new zealand. Gns science is new zealands leading provider of earth, geoscience and isotope research and consultancy services. Christchurch aftershocks normal seven years later otago. Aftershocks, triggered earthquakes, and christchurchs seismic future posted on february 26, 2011 by chris rowan as more scientific information becomes available regarding last weeks magnitude 6. Fault under christchurch sparks up and generates citys largest. Christchurch and canterbury earthquakes christchurch city. Timelapse visualisation of the september 4 2010 earthquake and its ongoing aftershocks including the devastating february 22, 2011 quake in christchurch and canterbury, new zealand. February 22nd earthquake in christchurch earthquake part of. The severe quake struck 35km east of seddon at a depth of 30km at 3. Lawrence valley article pdf available in seismological research letters 855. Im moving my news commentary to this post and the following comments.
It had been followed by several aftershocks, causing severe damage in wellington. Seismologists believe that the 22 february quake was itself an aftershock of the magnitude 7. Earthquakes from the last 365 days that may have caused shaking weak or greater. There have been a further 3500 aftershocks, from 14 november 2018 through to november 2019, 162 of these being m3 and above. Maintaining the volcano and earthquake news sections on this website, the free volcano webcams tool and interactive map widget is a freetime, both time and server cost intensive effort. Timelapse visualisation of the september 4 2010 earthquake and its ongoing aftershocks including the devastating february 22, 2011 quake in.
New zealands gns science has stated that the earthquake was part of the aftershock sequence that has been occurring since the september magnitude7. Earlier today geonets john ristau said there had been more than 60 aftershocks that measured about magnitude 4. The animation stops today, tuesday 7th of september, so shows 3. More than 7700 have people have reported feeling the shake on the geonet site, as far north as. Whakaariwhite island remains in an elevated state of unrest. Canterburys most severe earthquake prior to these occurred on 1 september 1888 about 100km north of christchurch in the amuri district. Map showing recent earthquake activity in and around christchurch, new zealand. All that changed with the darfield earthquake, as dozens of its aftershocks caused at least moderate damage. Geonet data centre manager explains seismic waves and whats been observed in.
While geonet monitors geohazards 247 we do not monitor this facebook page 247 please read more info below. Feb 22, 2011 the earthquake that brought death and destruction to christchurch on tuesday was almost certainly an aftershock of a larger quake that rocked new zealand on 3 september last year but while last. Extensive vertical and horizontal ground movement caused considerable damage to buildings and land. Canterbury quake recent events natural hazards and risks our. Then, with no warning just under two hours after the big earthquake, a magnitude 5. The christchurch lyttelton earthquake aftershocks news. He said most aftershocks were felt around the seddon area. Latest news is added to the comment stream after this post, in ongoing irregular fashion as the news occurs. Christchurch aftershocks part of normal sequence, geonet says. Dec 22, 2011 a series of strong earthquakes have struck the new zealand city of christchurch, 10 months after an earlier quake devastated the city centre the us geological survey said the initial quake on. The 2010 canterbury earthquake also known as the darfield earthquake struck the south island of new zealand with a moment magnitude of 7. Christchurch quake was aftershock from 2010, scientists. Earthquake environments from the globe are amply illustrated with photographs, maps, and cross sections. Christchurchs strongest local earthquake in more than a year may have been.
No doubt most peoples most recent earthquakerelated thoughts pertain to last weeks temblor in new zealand. The earthquakes epicentre was near lyttelton, just 10 km southeast of christchurchs central business district. It will take decades for canterbury to return to the level of earthquakes experienced before the september 2010 quake, a geonet scientist says. Jan 21, 2018 geonet duty seismologist anna kaiser said the cluster of aftershocks that has rattled christchurch this week was part of the normal decay pattern for the earthquake sequence that began in. The 2011 christchurch earthquake te ara encyclopedia of new.
May 28, 2015 building collapse during earthquake aftershocks by inderscience publishers ruins from the 1906 san francisco earthquake, remembered as one of the worst natural disasters in united states history. Christchurch quakes within aftershock probabilities published. It was lunchtime and many people were on the city streets. This application allows you to search the new zealand earthquake catalogue using temporal, spatial, depth and magnitude constraints, build queries to request data in different formats, or show search results on an interactive map. Christchurch aftershocks part of normal sequence, geonet. Epicenter was at 30 km east of darfield and near the original epicenter of the massive 7. Expert judgement this morning is that there is a 12% chance very unlikely of an eruption occurring that could impact the area beyond the vent within any 24 hour period through to monday 3 february. The interviewees words are used as verbatim or documentary theatre and exemplify the use of oral history technique in community theatre. Also the two events furthest to the west are mainly reverse faulting and may be considered as part of the aftershock sequence to the september 2010 m 7. Geonet is a collaboration between the earthquake commission and gns science. New zealands christchurch hit by series of earthquakes. Timelapse visualisations of the february 22 2011 and september 4 2010 earthquakes and their aftershocks can also be viewed. Christchurch earthquake kills 185 nzhistory, new zealand.
Pdf aftershock statistics for earthquakes in the st. This application provides basic functionality for a web feature service wfs which allows advanced searches on the geonet earthquake catalogue. Subscription nz herald eedition advertise with nzme book your ad. In the following year, there were 4,604 aftershocks between 14 november 2017 and 14 november 2018, 289 of those aftershocks were m3 and above. The city of christchurch experienced a major earthquake centred south of the city. Seismic activity in christchurch rumbles on seven years after two destructive earthquakes shook the region. The hidden fault that caused the february 2011 christchurch earthquake more information. Christchurch quake map earthquakes since september 4 2010. The 4 september 2010 earthquake was the largest to affect a major urban area since the 7.
It occurred nearly six months after the 4 september 2010. Christchurch and canterbury earthquakes christchurch. More than 7700 have people have reported feeling the. Just another reminder that the christchurch aftershock sequence is still ongoing. A series of strong earthquakes have struck the new zealand city of christchurch, 10 months after an earlier quake devastated the city centre the us geological survey said the initial quake on. Earlier today geonet s john ristau said there had been more than 60 aftershocks that measured about magnitude 4. Aftershocks, 22 february 2011 to 11 february 2012 historic. In the 12 hours from 6am to 6pm on tuesday, geonet, the official monitor, recorded 3 quakes, taking the total since the initial magnitude 7. The earthquake occurred more than five months after the 4 september 2010 earthquake, but is considered to be an aftershock of the earlier quake. The christchurch lyttelton earthquake aftershocks news thread. February 22nd earthquake in christchurch earthquake part. If you find the information useful and would like to support us, and help keep it alive and improve it, please consider making a small donation paypal. Millions of products all with free shipping new zealand wide. At lunchtime, on tuesday, february 22 nd 2011, christchurch was struck by a 6.
Christchurch city and its environs had only experienced three moderate earthquakes in the previous 40 years. The quake the largest in the city in four years hit 15km east of the city at a depth of 15km at 1. Wfs is an open geospatial consortium ogc standard to allow webbased access to geographical data. Geonet duty seismologist anna kaiser said the cluster of aftershocks that has rattled christchurch this week was part of the normal. According to the usgs, if an aftershock is larger than the first earthquake then we call it the mainshock and the previous earthquakes. Geonet web feature service this application provides basic functionality for a web feature service wfs which allows advanced searches on the geonet earthquake catalogue. One hundred and eighty five people died as a result of the 22 february earthquake. Life after death experience nde with steve gardipee, vietnam war story one of the best ndes duration. Play in two acts about the 1989 newcastle earthquake, based on interviews conducted with 32 people who experienced the collapse of the newcastle workers club during the earthquake. The earthquake that brought death and destruction to christchurch on tuesday was almost certainly an aftershock of a larger quake that rocked new zealand on 3 september last year but while last. September 2010 canterbury darfield earthquake september. Building collapse during earthquake aftershocks by inderscience publishers ruins from the 1906 san francisco earthquake, remembered as one of the worst natural disasters in united states history. Geonet content is gns science and is licensed under a creative commons attribution 3. Christchurch quake was aftershock from 2010, scientists say.