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Posted on 11/29/2006 3:03:09 PM PST by blam
Source: American Geophysical Union
Date: November 28, 2006
Landslide At Mt. Etna Generated A Large Tsunami In The Mediterranean Sea Nearly 8000 Years Ago
Geological evidence indicates that the eastern flanks of Mt. Etna volcano, located on Italy's island of Sicily, suffered at least one large collapse nearly 8,000 years ago.
Pareschi et al. modeled this collapse and discovered that the volume of landslide material, combined with the force of the debris avalanche, would have generated a catastrophic tsunami, which would have impacted all of the Eastern Mediterranean.
Simulations show that the resulting tsunami waves would have destabilized soft marine sediments across the floor of the Ionian Sea.
The authors note that field evidence for this destabilization can be seen in other scientists' accounts of widespread large chaotic deposits of sediments in the Ionain and Sirte Abyssal Plains and tsunami-related deposits called homogenite on local depressions of the Ionian seafloor. They also speculate that this tsunami may have led to the abandonment of a Neolithic village in Israel.
Title: The lost tsunami
Authors: Maria Teresa Pareschi, Enzo Boschi, and Massimiliano Favalli: Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy.
Source: Geophysical Research Letters (GRL) paper 10.1029/2006GL027790, 2006
7,600 BP, could that have been major flooding caused by the eruption of Mt. Mazama, leaving the 6 mile diameter Crater Lake? This was more than 4 times the volume of Mt. Pinitubo, and look at the 500 year flood we had in the Mississippi basin. Perhaps the tsunami 8,000 years ago washed away part of the barrier to the Black Sea, and major rains from Mt. Mazama finished the job?
Incidentally, does anyone have information on the impact of the major pyroclastic flow at Etna around 1500 BC, plus or minus 50 years. I have done some googling, but not come up with anything much except for the name of the depression in the mountainside that was left behind.
There is a TV show by that marine explorer who is also a adventure novelist that documents some human habitation deep in the current depths of the Blace Sea. Can't rememember his name off hand. Maybe google "NUMA" (National underwater marine archeology???)
Couple of possible links to what you're looking for higher in this thread.
http://vulcan.wr.usgs.gov/Volcanoes/CraterLake/description_crater_lake.html
"Crater Lake caldera formed by collapse during the catastrophic eruption of approximately 50 cubic kilometers of magma, 6,845 carbon-14 years B.P. (before present). The 8x10 kilometer caldera lies in the remains of Mount Mazama, a Pleistocene stratovolcano cluster covering 400 square kilometers in the southern Oregon Cascades. Prior to its climactic eruption, Mount Mazama's summit had an elevation between 3,300 meters and 3,700 meters (10,800 - 12,000 feet). Its southern and southeastern flanks were deeply incised by glacial valleys, now beheaded, that form U-shaped notches in the caldera wall."
Is that the same guy who believes that Sodom and Gomorrah were located either on the banks of the Dead Sea or perhaps in the low areas now covered by the Dead Sea?
I heard it was mass pandamonium. With looting and rapes at the shelters. People were even throwing spears at the rescuers.
"Crater Lake caldera formed 6,845 carbon-14 yers BP."
I think the date you are using might be under the old carbon-14 datings, not the newer callibration which has pushed these dates back a number of hundred years earlier. Haraldur Sigurdsson in his "Encyclopedia of Volcanoes," 2000, says that Crater Lake is about 7,500 year old, and that is the age that I was using when I stated my idea in the previous comment. Now I will look at the link you so kindly provided.
I think most historians put those cities on the banks of the Dead sea, assuming they existed in fact.
There have been some recent digs of communities found there which various people have asserted to be S & G.
When that term (carbon years) is used, it refers to the so-called uncalibrated dating; the so-called calibrated scale uses wiggle matching to try to correspond to established sequences in (for example) tree rings.
Prehistoric forest discovered off Key West -- on sea bed (under 40 feet of water)
Keynews.com West -- on sea b^ | Wed., Nov 13, 2002 | Mandy Bolen
Posted on 11/15/2002 7:34:31 PM EST by jimtorr
http://www.freerepublic.com/focus/f-news/789935/posts
"pine cones, tree branches and charred limbs -- thought to be about 8,400 years old -- were an unexpected and intriguing treasure awaiting archaeologist Corey Malcom, who spent much of the summer underwater in search of the remains of the Henrietta Marie, a British slave ship that sank 35 miles off Key West in 1700."
The Mediterranean Was A Desert
geocities.com | 3-23-2003 | Alan Feuerbacher
Posted on 12/16/2003 7:26:48 PM EST by blam
http://www.freerepublic.com/focus/f-chat/1041705/posts
Small Near-Earth Objects Could Trigger Nuclear War
Astronomy.com | September 17, 2002 | Kelly Kizer Whitt
Posted on 09/17/2002 6:20:18 AM EDT by Sweet_Sunflower29
http://www.freerepublic.com/focus/news/752087/posts
Asteroid Impact Could Have Triggered India-Pakistan Nuclear War, General Says
Space Daily | September 17, 2002 | Staff Sgt. A.J. Bosker, Air Force Print News
Posted on 09/18/2002 10:40:56 AM EDT by cogitator
http://www.freerepublic.com/focus/f-news/752890/posts
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Just updating the GGG info, not sending a general distribution. |
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http://onlinelibrary.wiley.com/doi/10.1029/2006GL027790/abstract
http://onlinelibrary.wiley.com/doi/10.1029/2007GL030717/abstract
Spectral properties of volcanic materials from hyperspectral field and satellite data compared with LiDAR data at Mt. Etna
http://www.sciencedirect.com/science/article/pii/S0303243409000038
https://www.google.com/search?q=Atlit-Yam
“THE FURY OF THE SEA’S GOD”: THE TSUNAMI PROVOKED BY THE MOUNT ETNA 8000 YEARS AGO AND THE SUBMERGED TOWN OF ATLIT-YAM
Ignazio Burgio
http://digilander.libero.it/cataniacultura/120tsunami-e.htm
THE FATE OF THE ANCIENT SUBMERGED TOWN OF ATLIT-YAM: TSUNAMI TRIGGERED BY ETNA OR SIMPLY RISING OF THE SEA ?
Ignazio Burgio
http://digilander.libero.it/cataniacultura/130-iaa-ingv-e.htm
“Ah, I remember it well. It was a Tuesday...”
The last huge earthquake in the Pacific Northwest caused a huge tsunami. Geologists figured it out in the 1980’s or so. Some pretty interesting sleuthing went into it. Then they figured out that the dead forests along the coast of Washington State had died when the ground suddenly lowered into the salt water.
So they dated the tree rings to the year 1700/1701 or so. The natives had stories of the earthquake and tsunami in their lore - but of course no white guys around here at that time.
Then a few more years or whatever of searching - or perhaps it was just by chance - but they came across some records in Japan. They kept detailed records of all of their earthquakes and tsunami. In their records they have a very large tsunami hitting Japan - but no record of any quakes.
So - based on the size of the wave and the timing of it’s arrival - they have dated that earthquake off the coast of Washington state to a specific hour! It was either Christmas or New Year’s day in 1700.
(Sorry for such a long story after your funny post.)
I think the limit for earthquake induced tsunami’s is about 90 feet or something? (30 meters sounds familiar). But it is based on an earthquake typically has a maximum displacement. Of course the shoreline where it hits factors in as well.
But a tsunami caused by a landslide can be huge as there can be so much more mass displacing the water. There was one up in Alaska on a narrow fiord and a boat was lifted up over a point of land that was hundreds (a thousand??) feet in elevation above the normal water level. The guys lived to tell about it!
Okay - 1700-foot tall wave! The year - 1958.
http://www.sitnews.us/Kiffer/LituyaBay/070808_lituya_bay.html
What’s a “large” tsunami?
****************************
It’s one size down from an Extra Large tsunami.
Interesting article - while the max height of the wave was 1700 feet, it was far less when it hit the boats. Two boats survived. One was carried over the trees and boulders of the point of land - probably 80 feet tall.
spoiler alert to the article....
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The fisherman that made it over the point of land returned to the bay 4 or 5 years later. As soon as he entered the bay, he had a heart attack and died!
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