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Study 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.
- Scientists captured unprecedented images of the megathrust zone off northern British Columbia, suggesting the potential for larger earthquakes and tsunamis in Science Advances.
- Researchers had debated whether subduction occurred along the Queen Charlotte plate boundary before the study published last month, as the Pacific Plate converges with the North American Plate at 1/2 to 2 1/2 centimetres per year.
- The geometry of the Haida Gwaii thrust suggests an under-thrusting fault, and the paper states it 'suggests that larger thrust earthquakes could nucleate along the margin.'
- With the imaging confirming the Cascadia subduction zone may produce a massive quake in the next 200 to 500 years, but not at the Haida Gwaii site, Bostock says a quake similar to 2012 isn’t likely for several hundred years.
- The study states the future of the Queen Charlotte plate boundary is uncertain, and the boundary from Haida Gwaii to southeast Alaska produced magnitude-8.1 and 7.8 quakes in 1949 and 2012.
23 Articles
23 Articles
Study 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 B.C., an area they say has the potential to generate large megathrust earthquakes and tsunamis.
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
Breaking News, Sports, Manitoba, Canada
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…
Battlefords NOW
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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