2012 Haida Gwaii earthquake

Earthquake in Canada October 2024 2012 Haida Gwaii earthquake Canada British Columbia 2012-10-28 03:04:09 603860908 usp000juhz 2012 10 27 20:04:09 (PDT) 90 seconds 7.8 w y 17.5 km on 52.769 -131.927 type:event_elevation:-17500_source:usgsehz_scale:300000 inline,title Thrust Canada 5 0.2 g 13 m ft 1 dead (indirect) The 2012 Haida Gwaii earthquake occurred just after 8:04 p.m. PDT on October 27 3:04 a.m. UTC October 28. The shock had a moment magnitude of 7.8 and a maximum Mercalli Intensity of V (Moderate). The earthquake's epicentre was on Moresby Island of the Haida Gwaii archipelago (formerly known as the Queen Charlotte Islands). This was the second largest Canadian earthquake ever recorded by a seismometer, after the 1949 Queen Charlotte Islands earthquake, about 135 km mi away.http://www.huffingtonpost.com/2012/10/28/canada-earthquake-tsunami-alaska_n_2032416.html Canada Earthquake: British Columbia Hit, Tsunami Warning For Alaska, Hawaii Huffingtonpost.com October 28, 2012 October 28, 2012 One person died due to a car crash related to the tsunami in Oahu, Hawaii. Earthquake Strong shaking was felt throughout Haida Gwaii where residents in Masset, Skidegate, Sandspit, and Queen Charlotte City were evacuated to higher ground.Justine Hunter Ian Bailey Wendy Stueck amp https://www.theglobeandmail.com/news/british-columbia/tsunami-warning-issued-after-earthquake-strikes-off-haida-gwaii/article4710930/ Minor temblor rattles Los Angeles after strong quake off B.C. coast The Globe and Mail October 29, 2012 October 28, 2012 Toronto July 1, 2016 https://web.archive.org/web/20160701111008/http://www.theglobeandmail.com/news/british-columbia/tsunami-warning-issued-after-earthquake-strikes-off-haida-gwaii/article4710930/ dead Minor shaking was felt in Prince Rupert and in other cities of the Interior such as Prince George, Quesnel, and as far away as Kamloops.Tsunami heads for Hawaii after huge B.C. quake https://www.cbc.ca/news/canada/british-columbia/tsunami-heads-for-hawaii-after-huge-b-c-quake-1.1181234 October 28, 2012 CBC October 27, 2012 CBC News Electricity service was interrupted in Bella Coola. thumbnail|USGS ShakeMap for the event Although the earthquake occurred on the Queen Charlotte Fault, a primarily strike-slip boundary between the Pacific plate and North American plate where the Pacific plate moves approximately north-northwest with respect to the North America plate at a rate of about 50 mm/yr, the 2012 quake exhibited a thrust mechanism, more characteristic of the Cascadia subduction zone to the south."Superquakes, supercycles, and global earthquake clustering", Chris Goldfinger, Yasutaka Ikeda and Robert S. Yeats, EARTH, January 7, 2013. Tsunami A tsunami warning was issued for the North American Coast from the Alaskan Panhandle to Vancouver Island, but later limited to the North Coast region of British Columbia. Canadian authorities were questioned for issuing a tsunami warning nearly 40 minutes after the U.S. had issued their warning.https://www.cbc.ca/news/canada/british-columbia/b-c-tsunami-warning-came-39-minutes-after-u-s-alert-1.1183291 B.C. tsunami warning came 39 minutes after U.S. alert – British Columbia – CBC News Cbc.ca October 30, 2012 November 9, 2012 The greatest wave heights recorded at tide gauges in Canada were 25 cm at Langara Island and 22 cm at Winter Harbour.http://oldwcatwc.arh.noaa.gov/previous.events/10-27-12/index.php West Coast and Alaska Tsunami Information Oldwcatwc.arh.noaa.gov November 9, 2012 September 2019 InternetArchiveBot yes In Tofino on Vancouver Island, the tsunami warning sirens were activated and residents in low-lying areas evacuated their homes.Magnitude 7.8 Quake Strikes Off Western Canada https://www.nytimes.com/aponline/2012/10/27/us/ap-cn-canada-earthquake.html?partner=rss&emc=rss&_r=1& October 28, 2012 The New York Times October 28, 2012 Associated Press The maximum wave height recorded in Tofino was 9 cm. Tofino's tsunami warning system was activated after communication with the provincial coordinating centre was cut off.DEREK SPALDING http://www.timescolonist.com/review+emergency+response+wake+Haida+Gwaii+quake+communication+problem+with+Tofino/7461466/story.html B.C. to review emergency response in wake of Haida Gwaii quake, communication problem with Tofino Timescolonist.com October 28, 2012 November 9, 2012 November 2, 2012 https://web.archive.org/web/20121102012313/http://www.timescolonist.com/review+emergency+response+wake+Haida+Gwaii+quake+communication+problem+with+Tofino/7461466/story.html dead In the U.S., Hawaii was also placed on alert, and over 100,000http://www.abc.net.au/news/2012-10-28/77-quake-strikes-off-canada-west-coast/4337966 As it happened: Hawaiian tsunami alert ABC News Australia October 28, 2012 November 9, 2012 people were evacuated to higher ground. The maximum wave height recorded at tide gauges in Hawaii was 79 cm. Other warnings were issued for the states of Oregon and California, but were subsequently lifted.http://www.tsunami.gov/ Tsunami messages issued in the past 7 days NOAA / National Weather Service November 9, 2012 Along the western coast of Haida Gwaii, the earthquake triggered tsunami waves with a maximum run-up height at 13 meters in Davidson Inlet.Ocean Networks Canada Co-seismic tsunami hazard assessment for Prince Rupert https://www.princerupert.ca/sites/7/files/2023-06/20190621%203003349%20Appendix%20C%20-%20Numerical%20Modelling%20of%20Seismic%20Generated%20Waves%20R1.pdf The City of Prince Rupert Tsunami Flood Risk Assessment Appendix C August 6, 2024 In Mike Inlet, the tsunami was measured at 7.6 meters, making it the largest tsunami generated by an earthquake in western Canadian history. Damage Despite the earthquake's large magnitude, no major structural damage was reported from any of the population centres in the vicinity.http://www.thenorthernview.com/news/176177901.html Aftershocks continue to hit Haida Gwaii, 6.3 magnitude occurs right before noon The Northern View October 28, 2012 November 9, 2012 November 1, 2012 https://web.archive.org/web/20121101043216/http://www.thenorthernview.com/news/176177901.html dead This can be explained by the remoteness of the tremor's epicentre. No casualties or major injuries were recorded from the quake, likely due to the sparsely populated nature of the region, but in Hawaii, one person died in a car crash near a road that was closed because of the tsunami threat near Oahu's northern coast.Tsunami Event: HAIDA GWAII, CANADA https://www.ngdc.noaa.gov/hazel/view/hazards/tsunami/event-more-info/5467 NGDC As a result of the earthquake and its aftershocks, the famed hot springs in Gwaii Haanas National Park on Hotspring Island dried up.McKnight Zoe http://www.timescolonist.com/news/metro/Earthquake+empties+famed+Haida+Gwaii+springs+video/7484352/story.html Earthquake empties famed Haida Gwaii hot springs (with video) Timescolonist.com November 2, 2012 November 9, 2012 https://web.archive.org/web/20121105054332/http://www.timescolonist.com/news/metro/Earthquake+empties+famed+Haida+Gwaii+springs+video/7484352/story.html November 5, 2012 dead In 2015 the hot springs began to come back.http://www.cbc.ca/news/canada/british-columbia/haida-gwaii-hot-springs-heating-up-1.3318532 3 years after earthquake, Haida Gwaii hot springs heating up again CBC News October 28, 2017 Aftershocks There were 94 aftershocks of magnitude 4.0 or greater lasting until November 7, as recorded by the USGS. The largest of these numerous aftershocks was a 6.3 magnitude earthquake that occurred 36 km mi to the west of the main tremor on the morning of October 28.https://earthquake.usgs.gov/earthquakes/eventpage/usb000dg06 M 6.3 - 237 km SW of Prince Rupert, Canada United States Geological Survey December 6, 2025 This was followed on October 29 by a 6.2 aftershock 50 km mi to the south of the original quake.https://www.cbc.ca/news/canada/british-columbia/another-earthquake-rattles-b-c-coast-1.1193779 Another earthquake rattles B.C. coast – British Columbia – CBC News Cbc.ca October 30, 2012 November 9, 2012 Four months after the mainshock, in January 2013, another magnitude 7.5 earthquake struck north of Haida Gwaii in southeastern Alaska.M 7.5 – Southeastern Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak0138esnzr/executive United States Geological Survey May 19, 2021 The earthquake had a pure strike-slip focal mechanism, consistent with a rupture along the Queen Charlotte Fault. This earthquake is not considered an aftershock, but was triggered by stress transfer caused by the October 2012 earthquake.R. D. Hyndman Tectonics and Structure of the Queen Charlotte Fault Zone, Haida Gwaii, and Large Thrust Earthquakes Bulletin of the Seismological Society of America 2015 105 2B 1058–1075 10.1785/0120140181 2015BuSSA.105.1058H http://web.uvic.ca/~rhyndman/PublicationPDFs/QueenCharlotteStructureTectonicHistory.pdf#page=14&zoom=100,418,284 May 19, 2021 See also List of earthquakes in 2012 List of earthquakes in Canada References Impacts of the October 2012 Magnitude 7.8 Earthquake near Haida Gwaii, Canada http://bssa.geoscienceworld.org/content/105/2B/1178.abstract A. L. Bird M. Lamontagne 2015 Bulletin of the Seismological Society of America Seismological Society of America 105 2B 1178, 1180 2015BuSSA.105.1178B 10.1785/0120140167 subscription M 7.8 - 206 km SW of Prince Rupert, Canada https://earthquake.usgs.gov/earthquakes/eventpage/usp000juhz United States Geological Survey Further reading 10.1007/s00024-014-0792-0 Field Survey Following the 28 October 2012 Haida Gwaii Tsunami 2014 Leonard L. J. Bednarski J. M. Pure and Applied Geophysics 171 12 3467–3482 2014PApGe.171.3467L 129536882 External links USGS: M7.7 – 139km S of Masset, Canada 2012-10-28 03:04:10 UTC Natural Resources Canada: 2012-10-27: M=7.7 – 74 km SSW of Queen Charlotte City, BC Saturday October 27, 2012 West Coast and Alaska Tsunami Warning Center: 2012-10-28 Pacific Tsunami Warning Center: Pacific archive https://web.archive.org/web/20121031061629/http://ptwc.weather.gov/ptwc/archive.php?basin=pacific October 31, 2012 Pacific Tsunami Warning Center: Hawaii archive https://web.archive.org/web/20121115073424/http://ptwc.weather.gov/ptwc/archive.php?basin=hawaii November 15, 2012 M7.7 Haida Gwaii region, Canada earthquake of 28 October 2012May 2025 medicmedic – United States Geological Survey Tsunami Animation: Haida Gwaii, Canada October 27, 2012 – Pacific Tsunami Warning Center 603860908 Haida Gwaii earthquake earthquake Category:Earthquakes in British Columbia Category:Tsunamis in the United States Category:2012 tsunamis Category:October 2012 in Canada Category:Haida Gwaii