A major North American earthquake fault, dormant for 12,000 years, is awakening
In a new study published recently in Geophysical Research Letters, scientists warn that a major earthquake fault, dormant for 12,000 years, is awakening.

This fault, called the Tintina Fault, stretches like a massive scar, diagonally across the Yukon Territory in northwestern Canada and into Alaska, USA, for approximately 1,000 kilometers.
It was previously widely believed that the Tintina Fault, while once highly active, was no longer a threat. Monitoring data from recent decades seems to confirm this: aside from occasional minor earthquakes of magnitude 3 or 4, the Tintina Fault has been remarkably quiet.
However, past earthquake studies in the region have largely relied on historical records and modern instrumental monitoring, which together cover only a few hundred years. For an earthquake fault with activity cycles of tens of thousands or even millions of years, this is like trying to judge a person's lifetime based on a single second of…







