Dienstag, 12. November 2024, 16:45 - 18:15 iCal

Talk of Jeremy GOSSELIN

(University of Calgary)

"Stressed out: the tectonics and earthquakes in Yukon, Canada"

The tectonics of Yukon are impacted by oblique collision of the Yakutat microplate with North America. This represents a regime that transitions from a predominantly transform margin to the south along the BC coast (the Queen Charlotte - Fairweather Fault system) to subduction of the Yakutat and Pacific plates, forming the Alaska-Aleutian subduction zone.

Crustal deformation in the region is characterized by several crustal-scale, right-lateral, strike-slip faults (including the Denali Fault), as well as rapid uplift of the St. Elias orogeny. Seismic station network coverage in Yukon has improved dramatically in recent years. This talk will review outstanding tectonic questions for the region and summarize recent work that leverages improved seismic station density. This will include regional earthquake detections, relocations, and focal mechanisms which constrain active deformation processes in southwest Yukon, including orientations of crustal stress. These results highlight enigmatic seismic quiescence along the Eastern Denali Fault, and represent valuable seismological evidence in support of the un-mapped "Connector" Fault beneath the St. Elias ice cover. These results contribute to our understanding of natural hazards in an area of cultural significance and expanding resource development.

 

Vortrag im Rahmen des Meteorologisch-Geophysikalischen Kolloquiums.

 

To the online talk click here: univienna.zoom.us/j/66942796112

Room 2F513 (Exner-Raum)
Josef-Holaubek-Platz 2, UZA 2, 1090 Vienna

Vortrag

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To the online talk click here:

Zur Webseite der Veranstaltung

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Veranstalter

Institut für Meteorologie und Geophysik

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Kontakt

Andreas Plach
Institut für Meteorologie und Geophysik
53735
img-wien@univie.ac.at

Erstellt am Mittwoch, 30. Oktober 2024, 13:45
Letzte Änderung am Donnerstag, 31. Oktober 2024, 11:55