2013 Craig, Alaska, earthquake

Earthquake in Alaska and British Columbia 2013 Queen Charlotte Fault earthquake 55.228 N 134.859 W #Canada British Columbia #Alaska 2013-01-05 08:58:14 602213332 ak0138esnzr 4 January 2013 11:58 pm Alaska Earthquake 2013 - M7,5.jpg 8.7 km w 7.5s 7.7 Queen Charlotte Fault Strike-slip British Columbia and Alaska None 5M 7.5 – 110 km SW of Edna Bay, Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak0138esnzr/executive United States Geological Survey 6 March 2022 1.5 meters (seiches) No YesLargest: 5.9 w yes None The 2013 Craig, Alaska earthquake (also known as the Queen Charlotte Fault earthquake) struck on January 4, at 11:58 pm (UTC–7) near the city of Craig and Hydaburg, on Prince of Wales Island. The w7.5 earthquake came nearly three months after an w 7.8 quake struck Haida Gwaii on October 28, in 2012.M 7.8 – Haida Gwaii, Canada https://earthquake.usgs.gov/earthquakes/eventpage/usp000juhz/executive 11 December 2020 USGS-ANSS The quake prompted a regional tsunami warning to British Columbia and Alaska, but it was later cancelled.5 January 2013 7.5-magnitude earthquake strikes off coast of Alaska; tsunami warning canceled CNN https://edition.cnn.com/2013/01/05/us/alaska-earthquake/index.html 11 December 2020 Due to the remote location of the quake, there were no reports of casualties or damage. Tectonic setting thumb|330x330px|The Queen Charlotte-Fairweather Fault could be seen at the bottom right of the map. The Queen Charlotte Fault is a major right-lateral (dextral) strike-slip and transform fault running off the coast of British Columbia and into Southern Alaska, through the Saint Elias Range for more than 700 miles.Queen Charlotte-Fairweather Fault https://sitkascience.org/research-projects/queen-charlotte-fairweather-fault/ 10 December 2020 Sitka Sound Science Center Its southernmost section joins a spreading ridge of the Gorda plate and the Cascadia subduction zone while the northern termination section joins the a thrust fault where the Yakutat terrane plows into the North American plate. It has been the source of several large earthquakes in the 20th century, and appears that much of its length has ruptured in these events. In 1949, it produced a magnitude 8.1 earthquake off the west coast of Haida Gwaii, then in 1958, a magnitude 7.8 earthquake generated a megatsunami more than 500 meters tall, killing five people. Other earthquakes in the region include a 7.6 near Sitka, and the 2012 event. The Queen Charlotte Fault bears a similar resemblance with California's San Andreas Fault, another transform fault to the south. Earthquake The rupture zone is situated on a seismic gap between fault segments which ruptured in 1972 to its north, and the other to the south in 1949.2013 M7.5 QUEEN CHARLOTTE FAULT EARTHQUAKE https://earthquake.alaska.edu/earthquakes/notable/2013-m75-queen-charlotte-fault-earthquake 11 December 2020 Alaska Earthquake Center 29 September 2020 https://web.archive.org/web/20200929204325/http://earthquake.alaska.edu/earthquakes/notable/2013-m75-queen-charlotte-fault-earthquake deadM 7.6 – Southeastern Alaska https://earthquake.usgs.gov/earthquakes/eventpage/iscgem772060/executive#executive 11 Dec 2020 USGS-ANSS The largest earthquake prior to the 7.5 quake along this gap was a magnitude 6.8 to the south of the 2013 epicenter.M 6.8 – Southeastern Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak00489udzds/executive 11 Dec 2020 USGS-ANSS The 2013 earthquake ruptured for a length of 150 km (93 mi), 322 km (200 mi) north of the 2012 event. A note to take into account, the 2012 temblor had a focal mechanism of thrust rather than strike-slip, like those observed along the fault. That earthquake was on the interface of the subducting Pacific plate as it is underthrusted beneath the North American plate.Hyndman R. D. May 2015 Tectonics and Structure of the Queen Charlotte Fault Zone, Haida Gwaii, and Large Thrust Earthquakes http://web.uvic.ca/~rhyndman/PublicationPDFs/QueenCharlotteStructureTectonicHistory.pdf Bulletin of the Seismological Society of America 105 2B 1058–1075 10.1785/0120140181 2015BuSSA.105.1058H The Craig earthquake, on the other hand, was a near pure strike-slip event which was probably in response to stress transfer from the quake four months ago. Characteristic Research found that the earthquake was a rare supershear event, and was the first of its kind to occur on an oceanic plate boundary. Supershear rupture initiated along the northern rupture zone for about 100 km with a velocity of 5.5 to 6.0 km/s, much faster than the propagation velocity of the S-waves.Han Yue Thorne Lay Jeffrey T. Freymueller Kaihua Ding Luis Rivera Natalia A. Ruppert Keith D. Koper Thorne Lay 3 November 2013 Supershear rupture of the 5 January 2013 Craig, Alaska (Mw 7.5) earthquake https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2013JB010594 Journal of Geophysical Research: Solid Earth 118 11 5903–5919 10.1002/2013JB010594 2013JGRB..118.5903Y 3754158 Maureen A.L. Walton Emily C. Roland Jacob I. Walter Sean P.S. Gulick Peter J. Dotray 2019 Seismic velocity structure across the 2013 Craig, Alaska rupture from aftershock tomography: Implications for seismogenic conditions http://www.jakewalter.net/papers/Waltonetal2019.pdf Earth and Planetary Science Letters 507 94–104 10.1016/j.epsl.2018.11.021 2019E&PSL.507...94W 133784498 The rupture propagated northwards, away from the epicenter, with an initial rupture velocity of 3.0 km. This subshear rupture continued for the first 30 to 50 km. Afterward, the rupture velocity exceeded the S-wave propagation speed of 3.8 km/s, reaching 7.0 km/s through the upper crust at its highest.Jin Fang Caijun Xu Yangmao Wen Shuai Wang Guangyu Xu Yingwen Zhao Lei Yi 3 June 2019 The 2018 Mw 7.5 Palu Earthquake: A Supershear Rupture Event Constrained by InSAR and Broadband Regional Seismograms Remote Sensing 11 11 1330 10.3390/rs11111330 2019RemS...11.1330F free Aftershocks More than 290 aftershocks greater than magnitude 2.5 were recorded in the aftermath of the earthquake from 2013 to 2020. Most of them were along other fault structures away from the main fault. This is also commonly seen in other supershear earthquakes. The largest aftershocks were of magnitude 5.9, 5.5 and 5.2 which occurred on a different fault from the mainshock.M 5.9 – 101 km W of Craig, Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak0131ffc3tc/executive 10 December 2020 USGS-ANSSM 5.5 – Southeastern Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak013ne6tla/executive 10 December 2020 USGS-ANSSM 5.2 – Southeastern Alaska https://earthquake.usgs.gov/earthquakes/eventpage/ak0138gzzv8/executive 10 December 2020 USGS-ANSS Impact A maximum intensity of V (Moderate) was felt in Craig, Hydaburg, Klawock and Hyder without damage, but there were reports of items falling off shelves. The earthquake was mildly felt as far away in Seattle, Washington.Earthquake Event Information ALASKA: SOUTHEASTERN https://www.ngdc.noaa.gov/hazel/view/hazards/earthquake/event-more-info/9953 10 December 2020 NGDC A tsunami warning was broadcast from Cape Fairweather, Alaska to northern Vancouver Island, while a tsunami advisory was issued to the coast of Washington. It was later canceled after no large waves were observed.Associated Press 5 January 2013 Alaska Gets All Clear After Quake and Tsunami Alert The New York Times https://www.nytimes.com/2013/01/06/us/alaska-earthquake.html 11 December 2020 The shock frightened many who fled to higher grounds to avoid the tsunami. Tsunami Because the earthquake was of almost pure strike-slip mechanism, only small waves were produced without damage. These waves were up to 14 cm high.TSUNAMI of 5 January, 2013 (WSW Craig, Alaska) https://www.tsunami.gov/previous.events/?p=01-05-13 10 December 2020 National Tsunami Warning Center Seiches up to 1.5 meters high were also recorded at Deer Lake, Alaska, north of Port Alexander. The small waves however, were not detected by Ocean Networks Canada.5 January 2013 Negligible Tsunami From Alaska Earthquake https://www.oceannetworks.ca/negligible-tsunami-alaska-earthquake 11 December 2020 Oceans Networks Canada See also List of earthquakes in 2013 List of earthquakes in the United States List of earthquakes in Alaska List of earthquakes in Canada References Craig, Alaska Category:Earthquakes in British Columbia Category:Supershear earthquakes Category:Earthquakes in Alaska Craig, Alaska earthquake Craig, Alaska earthquake Craig, Alaska earthquake Craig, Alaska earthquake Craig earthquake Category:Strike-slip earthquakes