Locals have felt two earthquakes in Metro Vancouver in just over a week.
Metro Vancouver residents felt an earthquake in the wee hours of Friday, Oct. 4, raising concerns about the possibility of another, possibly larger tremor in the near future.
Simon Fraser University Professor Emeritus John Clague says earthquakes of lower magnitudes occur daily in B.C., although most register under a magnitude of 1 and aren't felt by people. "The United States Geological Survey shows the earthquake site epicentre is close to the border. It tells us that these slab earthquakes can occur beneath the Strait of Georgia but it's getting close to Vancouver."
"It doesn't mean that we are approaching a magnitude 7 or higher earthquake...it could be little bitty adjustments along the plate boundary. It is interesting that we had two there, though," he remarks on the region's recent seismic activity. Increased activity in this area could mean a smaller earthquake can occur but it doesn't mean it will. Three factors would determine its impact locally if it does.Are earthquakes more likely to occur at night? Earthquakes occur at any time of the day and are less likely to be reported if they occur at night, particularly if they aren't strong. The last two shakers felt by locals were in the middle of the night and under a magnitude of 4.
Clague says the earthquake on Sept. 26 was more widely felt because it was bigger and more shallow. However, both events are important and not trivial since they are "felt" earthquakes.
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