{{Short description|Fault line in North America}} The '''Tintina Fault''' is a large right-lateral strike-slip fault in western North America, extending from Flathead Lake, Montana to the centre of the U.S. state of Alaska.<ref>{{cite book|last1=Connor|first1=Cathy|title=Roadside Geology of Alaska|date=2014|publisher=Mountain Press Publishing Company|location=Missoula, Montana USA|isbn=978-0-87842-619-5|page=26|edition=2nd}}</ref> It represents the Yukon continuum between the Rocky Mountain Trench in the northern contiguous United States and the Kaltag Fault in Alaska.<ref>[http://www.blm.gov/pgdata/etc/medialib/blm/ak/jrmic/usbm_rpts.Par.31547.File.tmp/OFR_88-78.pdf Mineral deposits of the Tanana – Yukon Uplands: A Summary Report]</ref>

Unlike the Denali Fault, which ruptured a {{convert|200|km|abbr=on}} portion of its central segment during the 2002 Denali earthquake, the Tintina Fault is considered inactive. Despite this classification, researchers noted a magnitude 5.3 right-lateral event in 1972 and a relatively young (Holocene) {{convert|14|km|abbr=on}} scarp with a maximum offset of {{convert|2.5|m|abbr=on}}.<ref>{{citation|title=Active Faults of the World|url=https://books.google.com/books?id=aQUgAwAAQBAJ|last=Yeats|first=R.|date=2012|publisher=Cambridge University Press|isbn=978-0521190855|pages=37–40}}</ref> A 2025 study suggests that stress may be developing along the Tintina Fault which could produce a magnitude 7.5 or higher earthquake.<ref>{{Cite journal |last=Theron |first=Finley |last2=Nissen |first2=Edwin |last3=Cassidy |first3=John F. |last4=Salomon |first4=Guy |last5=Leonard |first5=Lucind J. |last6=Froese |first6=Duane |date=2025 |title=Large Surface-Rupturing Earthquakes and a >12 kyr, Open Interseismic Interval on the Tintina Fault, Yukon |url=https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL116050 |journal=Geophysical Research Letters |language=en |volume=52 |issue=14 |doi=10.1029/2025GL116050|doi-access=free }}</ref>

==See also== *Northern Cordilleran Volcanic Province *Rocky Mountain Trench

==References== {{reflist}}

==Further reading== *{{citation|doi=10.1130/0091-7613(1995)023<0629:BRIECA>2.3.CO;2|title=Block rotation in east-central Alaska: A framework for evaluating earthquake potential?|date=1995|last1=Page|first1=Robert A.|last2=Plafker|first2=George|authorlink2=George Plafker|last3=Pulpan|first3=Hans|journal=Geology|volume=23|issue=7|page=629|bibcode=1995Geo....23..629P}}

{{coord missing|British Columbia}}

{{Faults}}

Category:Seismic faults of Canada Category:Seismic faults of Alaska Category:Geology of British Columbia Category:Geology of Yukon Category:Strike-slip faults Category:Geology of Montana

{{BritishColumbia-geology-stub}} {{Yukon-geology-stub}} {{Alaska-geo-stub}} {{struct-geology-stub}}