US EditionStudy maps ‘megathrust’ quake zone off northern B.C., but risk may be far in future
NORTHERN BRITISH COLUMBIA, AUG 11 – Researchers used a 15-kilometre hydrophone array to capture detailed images showing early megathrust zone formation with potential for large earthquakes and tsunamis, though risk is centuries away.
- Unprecedented images captured by U.S. and Canadian researchers show the Queen Charlotte plate boundary off northern British Columbia, confirming a nascent megathrust zone in Science Advances.
- Amid uncertainty, researchers debated subduction features along the Queen Charlotte plate boundary before the study published last month confirmed it, Bostock says.
- The geometry of the Haida Gwaii thrust suggests that larger thrust earthquakes could nucleate along the margin, Bostock notes, and the fault off Haida Gwaii's smaller size limits quake magnitude.
- With the imaging confirming the megathrust zone off northern B.C., Bostock says a major quake isn't likely for several hundred years, and the Cascadia risk may be far in future.
- The study states the future of the Queen Charlotte plate boundary is uncertain, Bostock predicts more thrust quakes that could grow larger as the fault expands, from Haida Gwaii to southeast Alaska produced magnitude-8.1 and 7.8 quakes in 1949 and 2012.
21 Articles
21 Articles
Study maps 'megathrust' quake zone off northern BC, but risk likely to be far in future
Scientists have captured the first detailed images of the meeting of two tectonic plates off the coast of northern British Columbia, an area they say has the potential to generate the largest "megathrust" earthquakes and tsunamis.
Winnipeg Free Press
Study maps 'megathrust' quake zone off northern B.C., but risk may be far in future
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A giant tsunami will hit the USA after a powerful earthquake — Daily Mail: EADaily
EADaily, August 11th, 2025. At the turn of the XXI and XXII centuries, the United States may become the scene of a global cataclysm as a result of a collision of tectonic plates along the Cascadia subduction zone in the northwest Pacific Ocean.
Study maps 'megathrust' quake zone off northern B.C., but risk may be far in future – Energeticcity.ca
Scientists have captured the first detailed images of the meeting of two tectonic plates off the coast of northern British Columbia, an area they say has the potential to generate the largest “megathrust” earthquakes and tsunamis. The images confirm what appears to be a rare geological occurrence, a subduction zone in its “infancy,” the study by U.S. and Canadian researchers shows. The paper, in the peer-reviewed journal Science Advances, says t…
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CFJC Today KamloopsStudy maps ‘megathrust’ quake zone off northern B.C., but risk may be far in future
Scientists have captured the first detailed images of the meeting of two tectonic plates off the coast of northern British Columbia, an area they say has the potential to generate the largest “megathrust” earthquakes and tsunamis. The images confirm what appears to be a rare geological occurrence, a subduction zone in its “infancy,” the study by U.S. and Canadian researchers shows. The paper, in the peer-reviewed journal Science Advances, says t…
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