A Canadian seismologist mentioned the three.9 magnitude earthquake that hit the Banff, Alta., space on Saturday night was commonplace however was extra noticeable than what’s often skilled there.
“It’s a good earthquake for that space,” Taimi Mulder, an earthquake seismologist with the Geological Survey of Canada, mentioned.
“There’s a few earthquakes a yr alongside the Rocky Mountains, and this isn’t uncommon to have an earthquake, nevertheless it actually is a bit bigger one than we usually get within the Rockies.”
The earthquake, which occurred at 6:33 p.m. MT and was additionally felt in Canmore, was acknowledged at a 3.9 magnitude by Canadian officers. It was additionally reported as 4.4 magnitude by the US Geological Survey.
Earthquake hits Banff area: ‘It was like an explosion’
Canada makes use of a distinct set of seismic stations which can be nearer to the city, offering a extra correct quantity, Mulder mentioned.
“We are going to get completely different magnitude estimates,” she mentioned. “Ours are extra correct as a result of they’re nearer.”
The city of Banff mentioned on social media Saturday night that there was no important harm reported in relation to the quake.
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Mulder mentioned that the earthquake was thought-about “shallow.”
“That is nonetheless labeled as a light-weight earthquake on the earth of earthquake seismology,” she mentioned, however added it was nonetheless probably noticeable to residents. “A magnitude 4 is 10 occasions extra shaking, extra floor displacement than a magnitude three.
“It’s massive sufficient to be felt. Most individuals felt a giant bang or a rattle.”
Earthquake hits Banff area: officers
Mulder added that earthquakes in mountain areas are widespread.
“The place there are mountains, you will have tectonic exercise — that’s how the mountains have been constructed,” Mulder mentioned. “So having earthquakes in mountainous areas is quite common.”
Alberta skilled 605 earthquakes between 1985 and 2011 — in comparison with simply 41 in Saskatchewan throughout the identical time.
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