Foreign News
Massive Alaska megatsunami was second largest ever recorded
A massive ‘megatsunami’ wave created when part of an Alaskan mountain crumbled into the sea is the second tallest ever recorded – and a reminder of the risks posed by melting glaciers, say scientists.
Last summer a giant wave swept through a remote fjord in southeast Alaska leaving destruction in its wake.
The event went largely unreported at the time, but a new scientific analysis shows it was caused by a massive landslide.
An incredible 64 million cubic metres of rock – the equivalent of 24 Great Pyramids – splashed into the water below. The sheer power of that amount of rock plunging into the fjord in under a minute created a gigantic wave almost 500 metres tall.
Only the time it happened – in the early hours of the morning – prevented tourist cruise ships being caught up in the devastation, say the researchers.
Dr Bretwood Higman, an Alaskan geologist, who saw for himself the damage at Tracy Arm Fjord, said it was “a close call”.
“We know that there were people that were very nearly in the wrong place,” he said. ‘I’m quite terrified that we’re not going to be so lucky in the future.”
These huge waves, labelled megatsunamis, happen when a landslide caused by either an earthquake or loose rock hit water below. They are usually localised and dissipate quickly.
The other type of tsunamis happen in the open ocean and are directly triggered by earthquakes, or occasionally other powerful events such as underwater volcanoes.
They, like the 2011 Japan tsunami, can travel for thousands of miles, hitting populated areas and causing widespread devastation and loss of life.
The biggest megatsunami was in the 1950s and was over 500 metres. This latest megatsunami was the second largest.
Dr Higman arrived on the scene a few weeks after the tsunami hit at the Tracy Arm Fjord – a destination popular with cruise ships exploring the natural wonders of Alaska.
He found broken trees littering the mountainside and hurled into the water, and vast swathes of scarred rock stripped of soil and vegetation.
Alaska is especially vulnerable to megatsunamis because of its steep mountains, narrow fjords and frequent earthquakes.
Now new research published in Science suggests glacier melt driven by climate change is making such collapses far worse.
The team combined field work, seismic and satellite data to reconstruct a domino chain of events and trace the height of the wave.
Dr Stephen Hicks of University College London said the glacier was previously “helping to hold up this piece of rock”, and so when the ice retreated, it exposed the bottom of the cliff face, “allowing that rock material to suddenly collapse into the fjord”.
He and his colleagues have studied tsunamis for decades and are worried.
“More people are now going to remote areas – often these tourist cruises are going to see the natural beauty of the area to actually learn more about climate change – but they are also dangerous places to be.”
Dr Higman said there is little doubt that the risks of megatsunamis are increasing.
“At this point, I’m pretty confident that these are increasing not just a little bit, but increasing a lot,” he said.
“Maybe in the order of 10 times as frequent as they were just a few decades ago.”
The scientists are calling for wider monitoring of hazards in parts of Alaska that might be vulnerable to megatsunamis.
Some cruise companies have announced they are to stop sending ships into Tracy Arm amid safety fears.
[BBC]
US authorities have found debris from a medical transport aircraft that went missing with six people on board.
The Federal Aviation Administration told the BBC it had lost contact with the Gulfstream G-100 plane just after 01:00 local time (05:00 GMT) on Saturday, while it was travelling from Bermuda to Boston, Massachusetts.
The search for survivors continues off the coast of Nantucket, a Massachusetts island, the US Coast Guard said.
Authorities have notified the next of kin of those on the flight, four Canadian nationals and two Bermudian nationals.
“Search crews located a debris field confirmed to be from the aircraft off the coast of Nantucket,” the US Coast Guard said in an update on Saturday night. It added that ships, helicopters and planes were involved in searches that would through continue the night.
The plane departed from Bermuda’s L.F. Wade International Airport at 23:40 local time, according to flight data from FlightAware, and was due to land at Boston’s Logan International at 01:30 EDT (05:30 GMT).
According to the tail number released by the Coast Guard, the plane belonged to Latitude Air Ambulances, a company that provides international medical flights for patients returning home.
Among those on board were two pilots and two medical staff, both Canadian, Clarence Togeretz, director of flight operations at Latitude, told CBC News.
The crew flew to Bermuda to collect a patient and their relative, who are not Canadian, Togeretz said.
FlightAware’s tracker shows the aircraft significantly dropped in altitude before its communications went dark, plummeting from around 7,300m (24,000ft) to 3,300m (11,000ft).
Radio transmissions shows trouble with communications between the air traffic controller and the pilot, the Boston Globe reported based on transmissions provided by LiveATC.net.
“You’re coming in blind? Is that what you said?,” the air traffic controller asked. “Are you declaring an emergency, or no?”
The pilot’s response was inaudible.
“You’re coming in a little weak so I didn’t hear what your response was, if you were declaring an emergency or not,” the air traffic controller said, according to the Globe.
The air traffic controller later confirmed the pilot had declared an emergency.
An area fire dispatcher asked emergency crews just after 01:00 EDT to prepare to meet a plane with an “electrical issue”.
The dispatcher later said “the aircraft has lost radio and radar”.
The Coast Guard said it would provide an update on Sunday morning local time.
[BBC]
A car has crashed into a crowd of rugby league supporters in the eastern Australian city of Newcastle, injuring 10 people, including three children.
New South Wales police said on Saturday that two of the injured – a five-year-old girl and a 67-year-old man – were in a critical condition and the other eight were in stable condition in hospital.
Police said they had arrested the 18-year-old man driving the vehicle and were investigating what happened. They said the crash was not believed to be related to “terrorism”.
The crowd had gathered to farewell the local rugby league side, the Newcastle Knights, ahead of their grand final against the Sydney Roosters on Sunday.
Newcastle Lord Mayor Gavin Morris said the driver, a rugby league fan, had lost control of his vehicle and had been taken into custody.
“He was revving the car, he was excited, he was a supporter, he was there for the joy of the moment,” Morris told the national broadcaster ABC.
“Somehow he lost control of the car … and he’s gone into the crowd,” he added.
Prime Minister Anthony Albanese said: “My thoughts are with everyone injured or involved in the horrible incident this morning in Newcastle.”
“Rugby league brings people together, and this should have been a weekend of excitement and pride for Newcastle fans,” he wrote in a social media post.
[Aljazeera]
Polls have opened in Latvia for an election taking place against the backdrop of perceived security threats from Russia and a nationwide cost-of-living squeeze.
Saturday’s vote is the first electoral test for Prime Minister Andris Kulbergs after coming to power in May this year when his predecessor resigned due to a backlash from stray drone incursions from Ukraine.
Kulbergs, whose right-wing United List party is currently polling at about 20 percent, is expected to hold onto his position, but the decline of two allies in his current coalition means he is set for a complicated negotiation over the makeup of any future government.
Polls opened at 05:00 GMT and will close at 17:00 GMT. The results are not expected to change Latvia’s pro-European and pro-Ukrainian course.
About 1.5 million people are eligible to vote in the country’s 11th parliamentary election since independence from the Soviet Union in 1991.
Latvian politics are highly fragmented, with parties rarely seeing above 20 percent vote share and coalitions being the norm.
This year, 14 electoral lists are contesting the election, but polls indicate only seven are likely to enter parliament, with the rest expected to fail to meet the minimum 5 percent vote threshold.
Rising living costs, low wages, strains on the healthcare system and long-term population decline have all featured prominently in campaign debates.
Most parties in Latvia are pro-Ukraine; however, the populist Sovereign Power party – which says it wants Ukraine to win but argues money spent supporting Kyiv would be better spent at home – looks likely to become the country’s second-biggest party, with more than 9 percent of the vote. Most other parties have ruled out forming a coalition with Sovereign Power.
Latvia First, a pro-Ukraine and populist nationalist party currently polling at about 9 percent, could be a potential coalition partner for PM Kulbergs.
The Progressives, a pro-European social democratic party, are polling at 6 percent.
Ethnic Russians make up roughly one in four Latvian citizens, but their vote, which has traditionally been cast along identity-based lines, looks set to be made according to economic and social issues.
Latvia is the poorest of the Baltic states, and it has sharply increased its defence spending since Russia invaded Ukraine, now allocating nearly 5 percent of its gross domestic product (GDP) to defence.
[Aljazeera]
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