Okanagan Lake tsunami risk?

Re: Okanagan Lake tsunami risk?

Postby Swoop » Mar 12th, 2015, 9:04 am

[email protected] Joe Public - see the first link in my post above - Castanet photo gallery of Summerland fracture...
http://gallery.castanet.net/d/60770-3/C ... ed+_3_.jpg
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Re: Okanagan Lake tsunami risk?

Postby GordonH » Mar 12th, 2015, 9:10 am

At any given moment a natural disaster could happen, on in or around Okanagan Lake. If any of you had checkout fault lines in our area.

Of course the question is will it.
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Re: Okanagan Lake tsunami risk?

Postby Joe Public » Mar 12th, 2015, 9:25 am

GordonH wrote:At any given moment a natural disaster could happen, on in or around Okanagan Lake. If any of you had checkout fault lines in our area.

Of course the question is will it.



Of course it will; the earth operates on the chaos principal. The question is not will it, but when, and that could be a very long time in the future.
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Re: Okanagan Lake tsunami risk?

Postby GordonH » Mar 12th, 2015, 9:31 am

^^^ you nailed it.
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Re: Okanagan Lake tsunami risk?

Postby Terris » Mar 14th, 2015, 6:40 pm

Kelowna is in line for a direct shot from a tsunami wave.

The "Bluff" located across the lake is actually a hanging wall feature that, if sufficiently disturbed by a seismic shock, would result in a collapse of the bluff into Okanagan Lake. The wave would not have anywhere else to go except right over downtown Kelowna.

You can observe other similar areas along Okanagan lake, mostly in the Penticton area, which have been eroding into the lake. The flat plateau on the southeast side of Kal lake is another example of an intact wall feature.

Also... the seismic faults displayed for the Kelowna Region are not complete. Two major fault cross Kelowna from the cliffs at Knox Mtn. and from the cliff at Dilworth Mtn.

Other geologic structure features underneath Kelowna could cause have disastrous consequences if seismically disturbed.
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Re: Okanagan Lake tsunami risk?

Postby waynetyea » Feb 4th, 2019, 3:18 pm

i agree its going to drop the whole mt side. sooner than later. rutland bench could be the new lakeside rd
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Re: Okanagan Lake tsunami risk?

Postby Frisk » Feb 4th, 2019, 3:36 pm

Joe Public wrote:If you recall a few years ago, when they were 4 laning Rte 97 between Summerland and Peachland, the rock above the highway separated and shifted, forcing construction to temporarily shut down, most likely due to the massive amount of blasting involved in highway construction. This is a very large, and very high rock face, and the fact that a lateral seam has been blasted from one end to the other would obviously weaken it.


This post seems pretty topical now...

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Re: Okanagan Lake tsunami risk?

Postby WalterWhite » Feb 4th, 2019, 3:56 pm

Frisk wrote:
Joe Public wrote:If you recall a few years ago, when they were 4 laning Rte 97 between Summerland and Peachland, the rock above the highway separated and shifted, forcing construction to temporarily shut down, most likely due to the massive amount of blasting involved in highway construction. This is a very large, and very high rock face, and the fact that a lateral seam has been blasted from one end to the other would obviously weaken it.


This post seems pretty topical now...


Wow - is this still there/same area??

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Re: Okanagan Lake tsunami risk?

Postby Frisk » Feb 4th, 2019, 4:19 pm

WalterWhite wrote:Wow - is this still there/same area??


Sorta. They blasted the rock on top of the slope to stabilize it. But yes the fracture is still there. Different area than the recent slide though, that one is just slightly south.

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Re: Okanagan Lake tsunami risk?

Postby GordonH » Feb 4th, 2019, 4:39 pm

So is this the same geological fissure that closed down highway just north of Summerland back in 2008. Reason why that stretch of highway is now 4 lanes.
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Re: Okanagan Lake tsunami risk?

Postby monilynno » Feb 4th, 2019, 4:46 pm

Never say never. "World's Tallest Tsunami Hit An Alaskan Bay In 1958 And It Was Not The First Of Its Kind"
https://www.forbes.com/sites/davidbress ... 3ea673d7ce
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Re: Okanagan Lake tsunami risk?

Postby alanjh595 » Feb 4th, 2019, 4:52 pm

A Tsunami is caused by an earthquake, a landslide would only cause a big wave. Two different causes, two different results, two different definitions.
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Re: Okanagan Lake tsunami risk?

Postby GordonH » Feb 4th, 2019, 4:53 pm

monilynno wrote:Never say never. "World's Tallest Tsunami Hit An Alaskan Bay In 1958 And It Was Not The First Of Its Kind"
https://www.forbes.com/sites/davidbress ... 3ea673d7ce


The cause of the landslide that created this tsunami was 7.8 earthquake.
Highly doubtful this area of okanagan will ever experience a quake anywhere near enough to cause the hillside to end up in Okanagan Lake.
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Re: Okanagan Lake tsunami risk?

Postby alanjh595 » Feb 4th, 2019, 4:57 pm

GordonH wrote:
monilynno wrote:Never say never. "World's Tallest Tsunami Hit An Alaskan Bay In 1958 And It Was Not The First Of Its Kind"
https://www.forbes.com/sites/davidbress ... 3ea673d7ce


The cause of the landslide that created this tsunami was 7.8 earthquake.
Highly doubtful this area of okanagan will ever experience a quake anywhere near enough to cause the hillside to end up in Okanagan Lake.


An earthquake would cause the whole lake to shake and "slosh", a landslide would just cause a "splash".
If at first you don't succeed, skydiving is not for you.

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Re: Okanagan Lake tsunami risk?

Postby ferri » Feb 4th, 2019, 5:04 pm

“When someone is nasty or treats you poorly, don't take it personally. It says nothing about you, but a lot about them.” ― Michael Josephson

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