Nathan Wolfe: What's left to explore


... the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation to explore? Biologist and explorer Nathan Wolfe suggests this answer: Almost ...

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The Indipendent Digital and Ferdinandea island

It began with the boiling of waters, 22 miles from the island of fire. It was July 1861, and off the coast of southern Sicily - the fiery island of volcanoes - in the Sicilian Channel between Europe and Africa, strange things were happening. There was a terrible smell of sulphur in the air, and jets of hot water and cinders were spat from the ocean. Dead fish floated on the surface. Commander Charles Henry Swinburne, standing on the British naval frigate HMS Rapid, watched as for only the second time since 10BC, one of Sicily's lesser-known volcanoes rose up from the sea, setting off an international dispute between Britain and Italy that is still, theoretically, unresolved. The British returned in August 1831, claiming the now sizeable hillock as Graham Island, after the First Lord of the Admiralty, and gleeful at grabbing such a strategic lump of rock: closer to Europe than Malta, Graham Island was a perfect point to control commercial and military sea traffic in the major Mediterranean shipping lanes. The Sicilians - Italy wouldn't be unified until 1870 - indignantly sent a ship to claim the island for the Bourbon Kingdom of the Two Sicilies, whose captain removed the Union Jack and named the island Ferdinandea, after King Ferdinand II. The Spanish showed an interest too, while the French sent a geologist to name it Giulia, on the prosaic grounds that it had appeared in the month of July. For five months, conflict raged in newspapers, as three nations fought over a 60m-high lump of basalt. Tourists travelled to the island to see its two small lakes and four-kilometre circumference; hardy visitors climbed to its summit through clouds of noxious gas. Sailors watched with suspicion, muttering of magic forces that must make the island pop up and down, while the nobles of the House of Bourbon reportedly planned to set up a top-class holiday resort on its beaches. But it was no use. Little by little, the island sank back beneath the waters, and by 17 December 1831, two Neapolitan officials reported no trace of it. The volcano had been drawn back down into the sea by the movement of the tectonic plates, the same way it had arisen, and the dispute was seemingly resolved - no territory, no territorial claim. Until now. The seamount (a seabed volcano) of Graham/Ferdinandea has lived on in charts, its summit - only eight metres below the surface - a constant hazard for shipping. Occasionally it has made its presence known, alarming fishermen with its steaming. In 1987, an American pilot on the way to bomb Libya thought the rock a submarine, and dropped depth charges on it. In 1995, tremors along the Sicilian coast were blamed on Ferdinandea. Then last year, the squabble over a non-existent island spluttered once more into life. Domenico Macaluso is a surgeon in Sciacca, the coastal town nearest to Ferdinandea, as he calls it ("You'll be wanting to call it Graham, I suppose," he says on the phone). A keen diver, and a volunteer Inspector of Sicilian Cultural Riches, he was horrified by the underwater foraging of the famed American diver Robert Ballard, who had been poking around in the Sicilian Channel and began to take an interest in Ferdinandea. Macaluso's interest intensified last year. "It was 5 February 2000," he states with obsessive precision, when a bout of volcanic activity prompted a newspaper article entitled "A long vanished piece of the British Empire is about to resurface". This caused "a certain embarrassment in certain quarters", says Macaluso, including in the Italian Ministry of Foreign Affairs. Anxiety pricked by rumours that two British navy ships had been sniffing around the area, possibly checking out the truth of the press story, the Italian government asked for a report on the situation from its voluntary cultural inspector. There was no chance of Ferdinandea re-emerging any time soon, the report concluded, but that didn't mean it wouldn't, one day. After all, the British had never made a formal claim to Graham, beyond sticking a flag on it. Ferdinand II had gone further, declaring with an Act of Annexation that Ferdinandea belonged to the Kingdom of Two Sicilies. But under international maritime law, Ferdinandea/Graham lies just outside Italy's 12-mile territorial waters. In theory, anyone - from Libya opposite, to nostalgic imperialists in the British fleet, to the House of Bourbon - could claim it, and the waters between Africa and Europe are as strategic now as in 1831. Macaluso decided to take action. "I'm not political," he stresses, but he is determined. He persuaded Ferdinand's descendant, Prince Carlos of Calabria, who'd never set foot in Sicily, to take part in a "cultural initiative", in the form of a 150kg marble plaque, inscribed with the coats of arms of the House of Bourbon, the Italian Navy and the town of Sciacca, and with the words: "This piece of land, once Ferdinandea, was and shall always belong to the Sicilian people." It was all done in the name of the long-dead Ferdinand of Bourbon, Duke of Castro, and placed 20m below the surface in March this year, an event commemorated by the Italian media. The publicity brought curious tourists back to this anonymous patch of sea where there was nothing to see. It brought someone else, too, because when Macaluso dived down to the island four weeks ago, he found his beloved plaque in pieces. Twelve pieces, actually, apparently bearing the marks of severe blows. He cried foul. "It's vandalism!" Italian newspapers, remembering the G8 protests in Genoa, speculated about a "Black Bloc" of underwater anarchists. More sober observers pointed to fishing anchors, accidental damage, maybe an earthquake, but Macaluso is unconvinced. "It was a considerable undertaking, to dive down there. If it had been an anchor, it would have broken in two, not 12 pieces. It was deliberate." Could it have been the dastardly British? "I don't think they could be bothered to get in a sub and go and break a piece of marble. Maybe it was someone with a grudge against the Bourbons." Filippo D'Arpa, a journalist with Il Giornale di Sicilia, pours cold water on any conspiracy theories. His novel on the events of 1831 - The Island That Went Away - published this month in Italy, is "a metaphor on the ridiculousness of power. This rock is worth nothing, it's no use as a territorial possession, and yet the English, the French and the Bourbons fought over it and nearly came to war". Even so, "even now there's a strong rivalry, because the ownership of the island has never been established. It's very peculiar that 160 years later, English and Italians are still fighting over this." Not so, says the Foreign Office spokeswoman, who downplays any claim, but knew exactly where Graham Island was. She asks briskly whether a quote she gave Time magazine would be OK. "I think we said we weren't going to make waves about it, or something humorous. It's that kind of level." But it pays to take small islands seriously, however insignificant they seem. Three miles off Southend-on-Sea, Roy and Joan Bates have defied Her Majesty's Government for 30 years to claim sovereignty for their principality of Sealand (actually a concrete gun fort). Japan's 200-mile exclusive economic zone uses a boundary marked by humble crops of coral surrounded by concrete. And in the book Lost Islands the oceanographer Henry Stommel listed many more undiscovered islands - marked on charts, but missing - which could be claimed for offshore banking services, principalities or radio stations, if anyone could find them. "It's a very thorny issue," says Martin Pratt of the University of Durham's International Boundaries Research Unit. "You can't have sovereignty without territory, and you usually need some kind of continuous possession. But theoretically, if it did emerge again, it's outside Italian territorial waters, and someone could possess it and claim it." An Italian naval captain recently wrote an article about Ferdinandea entitled "A Virtual Dispute". But a dispute it still is. Enough for Macaluso to be invited to Brussels to discuss the situation at official level, and for the Belgian newspaper Le Soir to put the story in full-colour on its front page. Enough for physicist Antonio Zichichi, who keeps an eye on the volcano from the Ettore Majorano Centre at Erice, to say immediately, "We're not interested in any plaques!" Zichichi heads a project "to understand what's going on in that part of the sea", including correlations between Ferdinandea's activity and seismic shocks on Sicily's southern coast. "I intervened because people were saying such stupid things about Ferdinandea - that it was magic, that it was going to erupt. It goes up and down because the earth's crust goes up and down, and that's that." But a Nato report last year about a similar seamount off northern Sicily speculated that a new emergence could cause huge tidal waves. And even Zichichi, a strong believer in Galileo's dictum that our lives must be governed by facts, admits that for now, Ferdinandea hasn't supplied many. "People should have started monitoring 20 years ago, not five," he says. "It's a very difficult task - in the advanced frontiers of geophysics, it's impossible to predict seismic events." And as long as the possibility that the non-existent island will exist again cannot be ruled out, the virtual dispute can rumble on. So Macaluso is determined to replace the plaque. The tourists will continue to circle over a volcano eight metres underwater. In government offices, files will build up on the what-ifs. And meanwhile, the volcano called Ferdinandea or Graham bubbles away, causing eruptions and waves in the realm of hypothesis, while its mineral sands sprout with lush underwater plants. The aristocratic beach resort is now a haven for fish and 40 varieties of microsnails. Coral has begun to form. "It's an underwater paradise," says Macaluso. "I'd prefer it to stay down there. It's better that way, for everybody."
[Rose George - The Independent Digital 26 September 2001]

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NY Times and Ferdinandea island 2

A bizarre diplomatic row is brewing over the ownership of a submerged volcanic island that may be about to reappear after 170 years in the seas off Sicily because of seismic activity around Mount Etna. Italy’s official maritime organisation demanded yesterday that Rome lay claim to the island before Britain, France, Libya or any other state does so. A British claim could be based on the fact that a British admiral planted a flag when the island emerged from the sea for six months in 1831. The Italian Naval League, founded in 1897 to promote Italy’s maritime traditions and which is subordinate to both the Defence Ministry and the Transport Ministry, said that Italy must carry out a “preventive strike” to declare the island “a contiguous maritime zone, otherwise it could be claimed by other countries, including Arab states such as Libya”. The submerged island is known as Ferdinandea to the Italians, after King Ferdinand II, the Bourbon King of Naples and Sicily until 1859. On British maps, however, it is marked as Graham Island or Graham Bank, after Sir James Robert George Graham, First Lord of the Admiralty, who claimed it for Britain. France also made a claim. Enzo Boschi, head of the Institute of Geophysics and Vulcanology, said that intense seismic activity beneath Mount Etna and around the Aeolian Islands was also affecting volcanoes submerged in the sea around Sicily. “We are monitoring the situation closely,” he said. The re-emergence of the island would be “a beautiful and fascinating event”. Scientists first noted “bubbling waters” above Graham Island — which lies 30 miles from Sciacca on the Sicilian coast — nearly three years ago. Weather satellites spotted concentric wave patterns and fishermen reported spouts of hot water, shoals of dead fish and the smell of sulphur. Government scientists on an exploration vessel, the San Giorgio, reported similar phenomena yesterday and Sicilian divers have planted an Italian flag on the island as a precautionary measure. When the island last appeared, in August 1831, rising 200ft above the water, Britain sent naval vessels from Malta, with a landing party led by Captain Humphrey Le Fleming Senhouse, and the flag was planted “despite the nauseous gas”. Etna, which is Europe’s most active volcano, reawakened a month ago, sending spectacular fountains of molten rock into the air and unleashing streams of lava. It has not, so far, threatened centres of population such as Catania, which lies below it. Residents are, however, braced for a big eruption and earth tremors beneath Mount Etna continue to cause alarm. Graham Island was climbed by Sir Walter Scott, the writer, as it was becoming the subject of a fierce dispute; a party of French adventurers landed to stake a claim for France. Then it sank as swiftly as it had risen. It last featured in an international incident when American warplanes patrolling during the confrontation with Libya in 1987 mistook the island for a Libyan submarine and dropped depth charges on it. In September last year Prince Charles and Princess Camilla of Bourbon, who live in exile in the South of France, arranged for divers to plant a plaque on the island declaring that the claim to it had passed from the former Bourbon dynasty to the Italian state.
[Richard Owen - Times November 27, 2002 ]

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NY Times and Ferdinandea island

Will Malta lay claim to the volcanic island expected to emerge out of the waters off its west coast in the coming days? The island, known to the British as Graham Island, to the Italians as Ferdinandea and to the French as Julia, has been submerged since January 1832. It last emerged above sea level in July, 1831, between Pantelleria and Sciacca and had then been claimed by Sicily, the UK and France. Observers at the time wondered if a chain of mountains would spring up, linking Sicily to Tunisia and thus upsetting the geopolitics of the region. Geologists studying the seabed near Sicily say there are signs that the island is expected to resurface again in the coming weeks. The island was sighted in the Sicilian Channel on July 13, 1831, amid huge clouds of smoke and lava flows from a crack in the sea bottom. Quick to capitalise on its strategic importance, Britain had despatched HMS Rapid from Malta, and a British naval party planted a British flag on the summit despite the "nauseous gas". They named the island Graham, after Sir James Graham, the first lord of the admiralty. The English had a particular liking for the new island that was en route to Malta, then a British colony, the Grifasi - Almanacco Siciliano said, quoting from a Maltese newspaper of August 10, 1831. But the government of the Kingdom of the Two Sicilies dispatched the corvette Etna to take down the British flag, claim the new land and dub it Ferdinandea in honour of King Ferdinand II, the Bourbon King of Naples and Sicily until 1859. Soon afterwards the French turned up: represented by geologist Constant Prevost and Eduard Joinville, a painter. Bearing the flag of France, they named the island Julia, because it was 'born' in July. The eruptive phenomena were intense between July 18 and 24, slowing down until they were extinguished at the beginning of August, when the island had reached its maximum development - a circumference of 4,800 metres and a height of 63 metres. The island's size gradually decreased to 700 metres. By January of the following year, it had disappeared. First recorded in 10BC, the submerged island last featured in an international dispute in 1987, when a US warplane patrolling the area during a confrontation with Libya mistook its submerged tip for a Libyan submarine and dropped depth charges on it. Federico Eichberg, an international relations expert based in Rome, believes that should Ferdinandea reappear, it would do so within Italian territorial waters and in all probability be formally claimed by Italy. The tip of the island is currently around eight metres beneath the surface, forming a shoal regarded as a hazard to shipping. Prof. Enzo Boschi, director of the Italian National Institute of Geophysics, said recently that waters above the island had been observed "bubbling" and there were "frequent tremors". Back in 1831, before diplomatic incidents involving the Sicilians, English and French could get underway in earnest, the new island eaten away by the waves, sank back into the waters of the Mediterranean and disappeared. Forever? That remains to be seen.
[Rosanne Zammit - Times-Malta Saturday, November 30, 2002]

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The hidden volcanic hazard: the low-water submarine volcanoes of th e Sicily Channel

The Sicily Channel (central-western Mediterranean) represents a Pliocene-Pleistocene rift system bordered by NW-SE-striking normal faults, cutting the accretionary prism of the Maghrebide-
Sicilian-Apennine orogen. This sector, floored by a variably thinned and faulted continental crust, was the site of intense magmatic activity. Geophysical data suggest that tectonic deformation along
the rift is still active but the processes that generated rifting in this zone are not fully understood
although this sector is crucial for the comprehension of the magmatism of the northern African
plate. Magmatism (Miocene to Present in age), both subaerial and submarine, has generated a wide
spectrum of volcanic rocks with different affinities, and originated the Linosa and Pantelleria
islands and several seamounts (e.g. Cimotoe, Tetide,Graham, Foerstner, Terribile), mainly located
along extensional NW-SE-striking faults. On the seafloor of theSicily Channel several recent
submarine volcanoes of various dimensions occur. Some of these volcanoes have erupted during
historical times; others are covered by undisturbed Pliocene-Quaternary sediments and have been
detected by seismic profiles and magnetic survey. Unfortunately, studies of volcanism in the Sicily
Channel have been limited almost exclusively tothe subaerial portions ofthe volcanoes. The best
known eruption of Sicily Channel occurred incorrespondence of the Graham Bank in 1831 AD.
This bank is located about 50 km south of the Sicily coast, shows a N-S-elongated shape and rises
from a sedimentary basement sited about 350 m below sea level. The eruption produced the
ephemeral Isola Ferdinandea that was rapidly dismantled by marine erosion. In 1891, a likely
submarine eruption from a centre 5 km NW of Pantelleria was documented and in 1941, above the
SE portion of the Graham Bank, gaseous emissions were observed. During the 2002-03 volcano-
seismic crisis, an increase in submarine degassing at the summit of the Graham Bank stirred worries
about a possible renewal of volcanic activity. Although submarine volcanism at the general level, a
nd particularly in the Mediterranean, is a very widespread phenomenon, it hasn't been intensely
studied due to the difficulties in reaching and analysing the submarine centres. This represents an
important gap to fill even considering that very recently (May 2006), on the northern slope of the Graham Bank, intense fumarolic emissions, which could suggest the presence of a shallo
w-depth magmatic body, have been documented. According to recent marine geological surveys, th
e Graham Bank belongs to a much wider volcanic complex that rises about 350 m from the sea floor, has a base diameter of 30x25 km and is constituted by numerous small volcanic edifices, some of them unknown. In particular, on the Graham Bank, the Ferdinandea volcano is associat
ed to several cones of similar dimensions. Although the described volcanic complex has to be regarded as active and critical in terms of hazard, the knowledge of its volcanological characteris
tics is limited to the scanty accounts of the 1831 eruption and to a few petrological, geochemical and isotopic data carried out on rocks dredged from the Graham Bank during the surveys of the '70-.80. These data possibly indicate the presence in the Sicily Channel of a HIMU-FOZO mantle source and the existence of a fossil plume that variably contributed to magmatogenesis, in response to variab
le lithospheric stretching. 
[A.P.Santo Dipartimento di Scienze della Terra, Università di Firenze, Italy;
C.Corselli, C.Tessarolo, A.Tibaldi, Dipartimento di Scienze Geologiche e Geotecnologie,
Università di Milano-Bicocca, Ital]
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Morning Inspiration


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