Why the ‘big one’ earthquake threat to B.C. may be bigger than previously thought

Earthquake News

Why the ‘big one’ earthquake threat to B.C. may be bigger than previously thought
EnvironmentScienceScience
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A study has offered us our clearest look yet at the undersea faults capable of producing Earth's biggest quakes, and warns that B.C. is in the area at the highest risk.

A new study has produced the clearest-ever look at what’s going on beneath the seafloor in an area capable of producing some of the planet’s most powerfulThe new data is “really exciting,” said John Cassidy, an earthquake seismologist with Natural Resources Canada.

The data showed that not all segments of the fault system were created equal, with some less prone to the threat of big quakes. “And those conditions, flat-smooth fault interface, are the conditions that are associated with the most destructive earthquakes.”The region, researchers concluded, has the biggest potential for the largest earthquakes along the entire Cascadia Subduction Zone.Cassidy said that’s because when the plates do eventually slip, they’re likely to slide farther in one shot than elsewhere.What the study doesn’t say is when the next mega quake will come.

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