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Explanation: Yes, but can your volcano do this? To the surprise of some, Mt. Etna emits, on occasion, smoke rings. Technically known as vortex rings, the walls of the volcano slightly slow the outside of emitted smoke puffs, causing the inside gas to move faster. A circle of low pressure develops so that the emitted puff of volcanic gas and ash loops around in a ring, a familiar geometric structure that can be surprisingly stable as it rises. Smoke rings are quite rare and need a coincidence of the right geometry of the vent, the right speed of ejected smoke,...

A 12-METRE monolith, hacked out of limestone by stone-age humans some nine thousand years ago, has been found at the bottom of the Mediterranean. The enormous stone totem, now split in two and sitting in the Sicilian Channel between Tunisia and Sicily, was hewed from a rocky outcrop some 300m away when the Mediterranean Sea was still a dry basin. It’s now under 40m of water. The new study, published in the Journal of Archaeological Science, says the area was submerged about 9350 years ago (give or take 200 years) when the last Ice Age retreated. Before that time the...

ROME (Reuters) - An underwater volcano with a base larger than Washington D.C. has been discovered just off the shores of Sicily, a scientist with Italy's National Institute of Geophysics and Vulcanology said on Thursday. The volcanic structure, which incorporates peaks previously thought to be separate volcanoes, was named Empedocles after the Greek philosopher who named the four classic elements of earth, air, fire and water. Legend has it that the philosopher died by throwing himself into Mount Etna, the nearby Sicilian volcano. Giovanni Lanzafame, who works at the institute and led the research, said Empedocles was at least 400...

Europe's biggest volcano spews lava as earthquakes signal latest return to life By Cahal Milmo 28 October 2002 Mount Etna, the largest active volcano in Europe, exploded into life again yesterday, spurting molten rock 650ft into the air above Sicily and producing streams of lava that engulfed small buildings on the island. Officials evacuated the area in the path of the lava flows after a new vent opened early yesterday morning. There were no reports of injuries. By late afternoon, the eruption had destroyed a line of ski-lift pylons used to reach the summit, as well as a pine forest....

“There is a likely chance of tsunami waves reaching the shores of Israel,” says Dr. Beverly Goodman of the Leon H. Charney School of Marine Sciences at the University of Haifa following an encompassing geo-archaeological study at the port of Caesarea. “Tsunami events in the Mediterranean do occur less frequently than in the Pacific Ocean, but our findings reveal a moderate rate of recurrence,” she says. Dr. Goodman, an expert geo-archaeologist, exposed geological evidence of this by chance. Her original intentions in Caesarea were to assist in research at the ancient port and at offshore shipwrecks. “We expected to find...

A deluge that swept the Land of Israel more than 7,000 years ago, submerging six Neolithic villages opposite the Carmel Mountains, is the origin of the biblical flood of Noah, a British marine archeologist said Tuesday. The new theory about the source of the great flood detailed in the Book of Genesis comes amid continuing controversy among scholars over whether the inundation of the Black Sea more than seven millennia ago was the biblical flood. In the theory posited by British marine archeologist Dr. Sean Kingsley and published in the Bulletin of the Anglo-Israeli Archaeological Society, the drowning of the...

A deluge that swept the Land of Israel more than 7,000 years ago, submerging six Neolithic villages opposite the Carmel Mountains, is the origin of the biblical flood of Noah, a British marine archeologist said Tuesday. The new theory about the source of the great flood detailed in the Book of Genesis comes amid continuing controversy among scholars over whether the inundation of the Black Sea more than seven millennia ago was the biblical flood. In the theory posited by British marine archeologist Dr. Sean Kingsley and published in the Bulletin of the Anglo-Israeli Archaeological Society, the drowning of the...

It's a terrifying vision: A violent eruption of Italy's Mount Etna triggers a massive collapse of one flank of the volcano, sending 35 cubic kilometers of debris--the equivalent of 10,000 Cheops pyramids--hurtling at 400 kilometers an hour into the Ionian Sea. The Big Splash unleashes a 50-meter-tall wall of water that, within a few hours, wipes out coastal settlements across the Mediterranean. This catastrophe happened 8000 years ago--and a Mediterranean monster of similar magnitude could happen again. That's the scenario invoked in an analysis in last week's Geophysical Research Letters. "It was an extraordinary event, probably the largest tsunami unleashed...

A deluge that swept the Land of Israel more than 7,000 years ago, submerging six Neolithic villages opposite the Carmel Mountains, is the origin of the biblical flood of Noah, a British marine archeologist said Tuesday. The new theory about the source of the great flood detailed in the Book of Genesis comes amid continuing controversy among scholars over whether the inundation of the Black Sea more than seven millennia ago was the biblical flood. In the theory posited by British marine archeologist Dr. Sean Kingsley and published in the Bulletin of the Anglo-Israeli Archaeological Society, the drowning of the...

Tsunami or melting glaciers: What caused ancient Atlit to sink? By Ofri Ilani At the bottom of the sea, some 300 meters west of the Atlit fortress, lies one of the greatest archaeological mysteries of the Mediterranean basin. About 20 years ago, archaeologists discovered a complex of ancient buildings and ancient graves with dozens of skeletons at the underwater site of Atlit-Yam. The team of marine archaeologists that excavated the site, headed by Dr. Ehud Galili of the Israel Antiquities Authority, came to the consclusion that an ancient settlement once existed there, but sank beneath the surface of the sea...

Lightning bolts appear above and around the Chaiten volcano as seen from Chana, some 30 kms (19 miles) north of the volcano, as it began its first eruption in thousands of years, in southern Chile May 2, 2008. Cases of electrical storms breaking out directly above erupting volcanos are well documented, although scientists differ on what causes them. Picture taken May 2, 2008. REUTERS/Carlos Gutierrez (CHILE) The Etna volcano in Sicily rumbled back to life on Tuesday with a "seismic event" followed by a burst of ash, volcanologists said three days after minor eruptions shook the cone. A "seismic...

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...

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