Earthquake in Calgary?

[fredr123]

A friend of mine is convinced that around midnight last night (March 27/28) he experienced an earthquake in Calgary. He said his entire building shook for around 3-4 seconds in the Marda Loop area.

Personally, I think he's full of it. Anyone else notice anything?

[fanforever1986]

Just as soon as he disproves the plate tectonic theory, he'll be listened to.

[pope04]

Originally Posted by fredr123

A friend of mine is convinced that around midnight last night (March 27/28) he experienced an earthquake in Calgary. He said his entire building shook for around 3-4 seconds in the Marda Loop area.

Personally, I think he's full of it. Anyone else notice anything?

I live in that area and noticed nothing.

[FlamesAddiction]

Earthquakes can happen anywhere, so it is possible no matter how unlikely.

[photon]

http://earthquake.usgs.gov/eqcenter/...quakes_all.php

Nothing on there.

[Knut]

Originally Posted by photon

http://earthquake.usgs.gov/eqcenter/...quakes_all.php

Nothing on there.

Holy crap... that is a lot of ground shaking.....

Amazing how many occur int he Gulf of California

[ken0042]

I would suggest a truck drove by his house.

As FF1986 eluded to, for us to experience an earthquake in Calgary, there would have had to be a quake on the West Coast so massive that there would be news reports all over the place as the army is called in to evacuate whatever survivors there might be in that place that had previously been Vancouver.

[FireFly]

Originally Posted by FlamesAddiction

Earthquakes can happen anywhere, so it is possible no matter how unlikely.

I'm curious as to why you think this is so.

[photon]

There have been some minor quakes in Calgary in the past, but they're usually related to changes from the removing of oil and gas (something the industry takes into account I think). Otherwise yeah, we're like 1200km from the nearest major fault or volcano.

EDIT: http://geoscape.nrcan.gc.ca/calgary/topics/crust_e.php

[fredr123]

Yeah, I was pretty sure he was full of it. Kinda disappointed fotze didn't reply with a "did the earth moving for you too, baby?" response.

[Thunderball]

Originally Posted by ken0042

I would suggest a truck drove by his house.

As FF1986 eluded to, for us to experience an earthquake in Calgary, there would have had to be a quake on the West Coast so massive that there would be news reports all over the place as the army is called in to evacuate whatever survivors there might be in that place that had previously been Vancouver.

Essentially... yeah.

Humans can't feel quakes below 2.0 or something like that... which are actually rather common. For this area to experience even a mild quake 4.0-6.0... Vancouver and/or San Francisco would become the lost city/cities of Atlantis, Mt. St. Helens would be on a reunion tour, or part of the Yellowstone Caldera had erupted... all of which would be very obvious and publicized.

[ken0042]

Originally Posted by fotze

I don't know if industry "takes into account" or "is aware of it".

That would be what those of us in the IT indistry refer to as "working as designed."

[StrayBullet]

Earthquake??? The wrestler!??!?! He was in Marda Loop??I thought he passed away in the late 90's?

[Bobblehead]

The Yellowstone Super Volcano isn't that far away.

The researchers also found that 10 times more energy goes into producing the slow and gradual ground deformations at Yellowstone than goes into ground movements released suddenly by the area’s frequent quakes.

Data shows that the caldera floor sank 4.4 inches from 1987 until 1995. From 1995 until 2000, the northwest rim of the caldera rose about 3 inches, followed by another 1.4-inch rise until 2003. Then between 2000 and 2003, the caldera floor sank a little more than an inch.


And then from 2004 to 2006 the central caldera floor rose faster than ever, springing up nearly 7 inches during the three-year span.


“The rate is unprecedented, at least in terms of what scientists have been able to observe in Yellowstone,” Smith said.

[photon]

Originally Posted by fotze

I thought you were full of crap then I googled it. There are studies on that.

I don't know if industry "takes into account" or "is aware of it".

Heh, maybe a better phrase would be "we're pretty sure this won't kill anyone".

[Thunderball]

Originally Posted by Bobblehead

The Yellowstone Super Volcano isn't that far away.

The good news for everyone is that its most likely to have several "small" eruptions, rather than one really big, and immensely damaging one.

The good news for us Albertans in any event is that our winds will push much of the debris south and east. (not that we wouldn't get our share of ash, but much less than if there was no wind and it simply shot in 1000kms each way).

[RougeUnderoos]

Earthquakes

The city of Calgary and province of Alberta are not considered high hazard areas for severe earthquakes by seismologists. Although there is no area that is "earthquake-free", Calgary and Alberta typically experience low levels of low intensity seismic activity. In an average year, Alberta will experience approximately 150 seismic events ranging to a maximum intensity of around 3.0 to 3.5 on the Richter Scale.

[RougeUnderoos]

A 5.6 earthquake in Montana. It's less than 400 miles from Calgary.

http://earthquake.usgs.gov/eqcenter/...s/2005/usazad/

I remember when I was a kid in the 80's there was a really mild earthquake somewhere that was felt in Calgary.

[Flashpoint]

It was the Flames winning the shootout.

[Daradon]

It's gotta be a truck or construction or something. Depending on different buildings and materials you can feel different vibrations.

For example when I'm laying on my water bed (and I'm on the third floor of my building) I can feel large trucks passing all the time even from very far away. I can feel the vibrations ripple through the water. If I'm standing, there's no way I can feel them, might not even hear them pass. But laying down on the bed, I can feel them way before I could even hear them.