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Tsunamis in the Alps? A killer wave slammed medieval Geneva, a new study says... [500 A.D.]
National Geographic ^ | Wednesday, October 31, 2012 | Daniel Stone

Posted on 11/01/2012 7:36:44 PM PDT by SunkenCiv

Nearly 1,500 years ago a massive flood in Geneva reportedly swept away everything in its path -- mills, houses, cattle, even entire churches.

Now researchers believe they've found the unlikely sounding culprit: a tsunami-like killer wave in the Alps. The threat, they add, may still be very much alive. (Video: Tsunamis 101.)

Spurred by a huge landslide, the medieval Lake Geneva "tsunami" (technically defined as a seismic ocean wave) swamped the city, which was already a trading hub, according to a new study.

Far from any ocean, the massive wave was likely generated by a massive landslide into the Rhone River, which feeds and flows through Lake Geneva, according to a group of Swiss researchers.

The team analyzed a massive sediment deposit at the bottom of the lake's easternmost corner and determined that the material had once sat above the lake and had slid all at once into the Rhone, near where the river flows into the eastern end of Lake Geneva (map).

The sudden splash sent a tsunami barreling down the length of the 225-square-mile (580-square-kilometer) lake toward Geneva, at the western end of the lake, the study suggests. Researchers estimate the wave was between 9 and 26 feet (3 and 8 meters) tall, depending on how quickly the rockfall occurred, which they were unable to measure.

(Excerpt) Read more at news.nationalgeographic.com ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism; godsgravesglyphs; lakegeneva; switzerland; tsunami
The circa A.D. 1000 Chateau de Chillon on Lake Geneva, Switzerland. Photograph from ADS/Alamy

The circa A.D. 1000 Chateau de Chillon on Lake Geneva, Switzerland. Photograph from ADS/Alamy

1 posted on 11/01/2012 7:36:54 PM PDT by SunkenCiv
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...



2 posted on 11/01/2012 7:37:52 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...

 GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach
To all -- please ping me to other topics which are appropriate for the GGG list.


3 posted on 11/01/2012 7:39:46 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

This is an interesting theory.

Lake Geneva, regardless, remains one of the most beautiful vistas in the world.


4 posted on 11/01/2012 7:39:49 PM PDT by Senator Goldwater
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To: SunkenCiv
Excellent discovery ~ could explain why Chicago mysteriously disappeared 2 days ago under the battering of a vast array of 25 foot waves!

Which it didn't but that's because they already knew back in the DeSoto's day that this could happen on that lake so NOBODY built really close to the shoreline ~ plus the lake used to have an uncontrolled height above sealevel and could change over night.

I'd guess Geneva was quite small when this 24 foot tsunami took it out!

5 posted on 11/01/2012 7:42:38 PM PDT by muawiyah
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To: SunkenCiv

Global warming?


6 posted on 11/01/2012 7:43:25 PM PDT by golf lover (going)
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To: SunkenCiv

Now will you take global warming seriously?! Chirps Al Gore.


7 posted on 11/01/2012 7:45:07 PM PDT by grayhog (Ay with.)
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To: Senator Goldwater

A lot of people have felt that way about the Alps generally. :’)

Prehistoric Disaster: An Alpine Pompeii from the Stone Age
http://www.freerepublic.com/focus/chat/2103309/posts

Stone-age colony discovered at Lake Bracciano (9,000 Year Old Canoe)
http://www.freerepublic.com/focus/news/1508458/posts


8 posted on 11/01/2012 7:45:41 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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prehistoric lake settlement site:freerepublic.com
Google

9 posted on 11/01/2012 7:46:54 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: muawiyah
Chicago mysteriously disappeared 2 days ago under the battering of a vast array of 25 foot waves!

LOL Funny thing is that the prevailing winds mean the Michigan shore usually catches greater waves. I sat in a parking lot in Ludington Michigan one day and watched the lighthouse get pounded with waves like this. (not my photo)

Image Hosted by ImageShack.us
10 posted on 11/01/2012 7:52:02 PM PDT by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: grayhog

Al Gore, upon reading this report, shouted out “Bush did it.”

Michael Moore is planning a movie also blaming Bush for this earth tsunami. Playing Bush will be Oliver Stoned. Playing the tsunami will be Roseanne Barr.

Playing the innocent Swiss milkgirl, Sandra Fluke.

Playing God will be Barack Obama.

Coming to an insane asylum near you, soon.


11 posted on 11/01/2012 7:55:33 PM PDT by MadMax, the Grinning Reaper
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To: SunkenCiv

http://www.johnspeedie.com/healy/saywhat.wav


12 posted on 11/01/2012 8:12:39 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: SunkenCiv

This thread has been a teachable moment for my 21 year old son, leading to a discussion about the Lituya Bay, AK tsunami in 1958.


13 posted on 11/01/2012 8:19:13 PM PDT by Rebelbase (The most transparent administration ever is clear as mud.)
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To: SunkenCiv

Deep Purple musta cranked up the amps...


14 posted on 11/01/2012 8:38:40 PM PDT by martiangohome
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To: martiangohome

...water in the sky...


15 posted on 11/01/2012 9:13:24 PM PDT by Homer1
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To: SunkenCiv

For the last time, I wasn’t involved! I know nothing of the events leading up to the creation of the tsunami.

Any alleged eyewitness accounts that I was seen surfing the tsunami are *clear* fabrications and not to be believed!


16 posted on 11/01/2012 10:11:29 PM PDT by Altariel ("Curse your sudden but inevitable betrayal!")
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To: Altariel

Tell it to the judge ya beach bum. Now come along quietly.


17 posted on 11/02/2012 2:53:20 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: Rebelbase

That one would have been disappointing to anyone who happened to be in the valley at that time. :') Topped out over 1700 feet elevation, the terrain acted like a funnel.

lituya bay site:freerepublic.com
Google

18 posted on 11/02/2012 3:16:25 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: AdmSmith; AnonymousConservative; Berosus; bigheadfred; Bockscar; ColdOne; Convert from ECUSA; ...

Clare Places: Islands: Mutton Island or Enniskerry
(9th century catastrophe in Ireland)
Clare County Library | prior to November 19, 2005 | staff writer
Posted on 11/18/2005 11:58:58 AM PST by SunkenCiv
http://www.freerepublic.com/focus/chat/1524751/posts

Kerry island structure may be due to tsunami waves in medieval times
Irish Central | Thursday, July 26, 2012 | Patrick Counihan
Posted on 07/26/2012 8:31:59 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/chat/2911273/posts


19 posted on 11/02/2012 3:18:41 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: cripplecreek

They aren’t so much lakes as they are freshwater inland seas. :’)


20 posted on 11/02/2012 3:20:13 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv
And they'll kill you in a hot second if you give them half a chance.

Image Hosted by ImageShack.us

Image Hosted by ImageShack.us

Just about every pier and breakwater along lakes Michigan and Superior have memorials to people who died after being swept off them. A Coast Guard officer at Grand Marais Michigan told me they always die in 3s. Usually two mistaken teen immortals and one older man who can't bear to watch them die.
21 posted on 11/02/2012 3:34:36 PM PDT by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: cripplecreek

Because the water is fresh, it comes in something like 7/6ths faster, meaning that a series of waves will take a vessel apart faster on the Lakes than on the oceans and seas (everything else being equal of course).

Years ago I saw a family from south of the border somewhere walk toward the waterline in Grand Haven, staring at the water out to the horizon, and the dad put his hand down, cupped up some, tasted it, and said, basically, it isn’t salty. Foreign visitors are sometimes amazed. It’s weird to think that I take it all for granted — doesn’t everyone have something like this within an easy drive of their homes? :’)

I’ve often enjoyed swimming in wave conditions which probably weren’t safe, but I *always always always* avoid swimming by the piers. Besides unseen crap below the surface that can hook you, knock you cold, etc, the currents are much, much worse. Natural undertow is nothing by comparison.

The Edmund Fitzgerald had been the largest vessel ever on the Lakes, and nothing surpassed it for decades, probably due to economic factors.


22 posted on 11/02/2012 4:14:32 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv
I always liked this video.

A Gale on Lake Superior December 29th. 1993 aboard the Charles Wilson
23 posted on 11/02/2012 4:28:17 PM PDT by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: muawiyah; SunkenCiv

Roman Geneva was originally founded as a border town to protect Gaul against the Helvetii. After the fall of the Empire it was absorbed into the Burgundian kingdom.


24 posted on 11/05/2012 4:01:31 PM PST by colorado tanker
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To: colorado tanker

Thanks ct.


25 posted on 11/05/2012 4:44:28 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/)
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