Bordering the extremely volcanic ‘Ring of Fire', Australia may be at risk from future tsunamis

the latest tech news, global tech news daily, tech news today, startups, usa tech, asia tech, china tech, eu tech, global tech, in-depth electronics reviews, 24h tech news, 24h tech news, top mobile apps, tech news daily, gaming hardware, big tech news, useful technology tips, expert interviews, reporting on the business of technology, venture capital funding, programing language

Australia’s location alongside the so-called Pacific “Ring of Fire” places it at risk from future major eruptions like that of Hunga Tonga Hunga Ha‘apai, which went off with limited warning on Saturday.

Eruptions of this sort are to be expected and research suggests there will be many more – and likely much larger – eruptions occurring on our doorstep. The only question is when and where.

the latest tech news, global tech news daily, tech news today, startups, usa tech, asia tech, china tech, eu tech, global tech, in-depth electronics reviews, 24h tech news, 24h tech news, top mobile apps, tech news daily, gaming hardware, big tech news, useful technology tips, expert interviews, reporting on the business of technology, venture capital funding, programing language

Scientists can monitor magma flow and provide warnings in some cases; particularly for the harder to access underwater volcanoes, sudden changes in behaviour can be difficult to predict.

“There’s always potential in the future of an explosive volcanic event,” volcanologist and adjunct associate professor at Monash University, Dr Heather Handley said.

Global Tech News Daily

“We don’t monitor every active volcano that there is and there might be volcanoes that we haven’t even realised are there. And it’s hard to predict exactly when a volcano is going to change from quite a mild eruption to a more explosive eruption.”

Volcanic eruptions are measured on the Volcanic Explosivity Index (VEI), which ranges from 0 to 8. By this scale, a VEI of 0 would be something like gently oozing lava, while an 8 would be a cataclysmic “supervolcano” event.

Global Tech News Daily

The intensity of each VEI rating increases ten-fold the higher it goes, meaning each level of eruption is ten times’ larger than the previous rating.

While initial estimates place Saturday’s eruption at around a VEI 4-5, Australians may not have to wait long to see another at the more extreme end of the scale.

Modelling by volcano risk assessment expert Dr Christina Magill suggests a volcanic eruption with a VEI of 7 occurs in the Asia Pacific Region once every roughly 450 years – an event large enough to briefly affect the world’s climate.

The most recent was Tambora in Indonesia, the 1815 eruption of which was the largest in recorded history, directly killing an estimated 11-12,000 people and another roughly 60,000 from starvation and disease due to resulting crop failure.

Bordering the extremely volcanic ‘Ring of Fire’, Australia may be at risk from future tsunamis

Camera IconThe most recent VEI 7 was in 1815 at Tambora in Indonesia – the largest eruption in recorded history. Credit: Supplied

“This is something that can happen just within a few generations and we’ve just not had to do it during the level of technology that we’ve got now and communications systems and population density,” Dr Handley said.

“It’s one thing I think people should be aware of is we need to be prepared for when there is a large scale eruption.”

It’s not yet known what the VEI of Saturday’s eruption of Hunga Tonga Hunga Ha‘apai was, as the area is still too unstable for scientists to assess, however, it was large enough to trigger tsunami events across the Pacific, Japan, Australia and even as far away as the United States and South America.

Impact in terms of damage and loss of life across Tonga, which reported an initial surge well over one metre high, is still being calculated – made more difficult by damage to telecommunications services.

Despite seeing relatively little impact from Saturday’s eruption, beaches along Australia’s east coast were closed for safety and waves of over 50cm were recorded along the eastern mainland as far south as NSW.

While no large tsunamis have been officially recorded in Tonga in recent history, geological clues from the ancient past paint a more concerning picture about the effect of a large eruption in the region.

In 2007, a team of scientists led by US seismologist Cliff Frohlich studied a series of seven “out-of-place” boulders made out of coral limestone that sat mysteriously 100-200m inland on Tonga’s main island, Tongatapu.

The team concluded the boulders, some of which weigh up to 1600 tonnes, were deposited there by a prehistoric mega-tsunami.

“Geological evidence like this shows us the tsunami on Saturday was not the first large tsunami to impact Tonga,” said Dr Annie Lau, Lecturer in the School of Earth and Environmental Sciences at The University of Queensland.

“Tsunami simulations done by researchers showed a large tsunami with wave height over 10m was needed to generate enough energy to lift and transport those huge rocks.”

Frohlich’s team proposed the tsunami was caused by a type of volcanic eruption known as a caldera collapse, a smaller version of which may have been behind Tonga’s most recent tsunami.

Director of the Australian Centre for Astrobiology at UNSW Sydney, Professor Martin Van Kranendonk, described volcanoes as “violent and unpredictable”, but said humanity had no choice other than to adapt to their presence.

“Nations that live on volcanoes must have emergency plans in place, as they can erupt at any time. Given the scale of eruption events, this may need to include arrangements with international partners,” Professor Van Kranendonk said.

News Related

OTHER NEWS

Gay men allegedly lured to Melbourne park via dating app and beaten

Three gay men have been assaulted at a Melbourne park after allegedly been catfished by a group of teenage boys on a dating app. The trio were allegedly lured to ... Read more »

‘We knew the truth': Cleo's parents reveal toll of internet trolls during 18-day kidnapping nightmare

Cleo Smith’s parents battled dark times during their daughter’s 18-day kidnapping nightmare, no more so when they were blamed for her disappearance. In a series of high-profile media interviews over ... Read more »

AFL: Carlton re-signs John Nicholls medallist Sam Walsh on long-term deal

Carlton has removed reigning club champion Sam Walsh from the out-of-contract market, extending the All-Australian midfielder for four more years. Walsh will serve as one of two vice-captains, along with ... Read more »

‘Garbage': Scott Morrison scraps major election promise

Scott Morrison has broken a major promise made three years ago, with plans for a federal anti-corruption watchdog sent to the scrap heap. Attorney-General Michaelia Cash on Monday confirmed the ... Read more »

Tyler Wright didn't win in Hawaii but made a big statement

Tyler Wright left Pipeline without the major trophy but adamant the historic event showed women “deserve to be out here”. The two-time world champion was bundled out of the Billabong ... Read more »

Ongoing industrial action set to cause commuter chaos across Sydney's rail network for at least two weeks

Sydney commuters are being warned of major delays as an already reduced public transport timetable is set to be hit by ongoing industrial action from Monday. Members of the Rail, ... Read more »

Government announces ABC's new billion dollar funding package

The Morrison government has announced a three-year $4.2 billion funding package for the ABC and SBS just months out from the federal election. Communications Minister Paul Fletcher made the announcement ... Read more »

Government's major announcements on RATs

Rapid Antigen Tests have emerged as a battleground issue heading into the federal election with the Morrison government promising to make them tax deductible. After coming under pressure from Labor ... Read more »

Triple bushfires rip through Western Australia

Firefighters battled through the night defending homes in what was a treacherous 24 hours for communities in Western Australia. The bushfires ripped through the south-western part of the state, damaging ... Read more »

Earthquake rattles residents in Far North Queensland

A minor earthquake has been recorded off the Far North Queensland coast with local residents reporting having felt the rumbling. The 3.9 magnitude quake was recorded about 60kms south-east of ... Read more »

Rapid Antigen Tests ‘vital' for people with disability

Thousands of people living with a disability are set to receive Rapid Antigen Tests (RATs) following public pressure and criticism over a lack of access for some of Australia’s most ... Read more »

National day to find forgiveness following deaths of four children

The family of four children killed in a horror drink driving crash have urged forgiveness as they remembered their lost loved ones in a moving ceremony. Antony, 13, Angelina, 12, ... Read more »

‘Couldn't care less': Scott Morrison responds to damaging leaked texts

Prime Minister Scott Morrison has broken his silence on the leaking of more damaging text messages. Deputy Prime Minister Barnaby Joyce was forced to issue an apology for a message ... Read more »

Federal election 2022: How 13,000 Aussies could decide the next PM

Just a little more than 13,000 Australians have the potential to decide the next election. With the nation due to head to the polls in less than four months, the ... Read more »

NSW Covid infections drop again to 7893, 28 deaths recorded

Daily coronavirus infections in NSW are at their lowest since the Christmas period, while hospitalisations and ICU admissions also continue to ease from the staggering Omicron peak in mid January. ... Read more »

Victoria records 7169 new Covid-19 cases and six deaths

Victoria has recorded 7169 new Covid-19 infections and six deaths after seeing its deadliest day on Saturday. The state has seen a steady decline in Covid infections in recent weeks, ... Read more »

Prime Minister Scott Morrison issues statement on Queen Elizabeth

Prime Minister Scott Morrison has issued a statement honouring Queen Elizabeth on her platinum jubilee, the 70 year anniversary of her accession to the throne. The Queen is the first ... Read more »

Would you do this job in exchange for $100?

Would you work a 64-hour week for the prospect of earning $100? That’s the reality of Alexi and Talipope, who came to Australia from Samoa to work under the government’s ... Read more »

Man charged after urinating on Hyde Park Anzac Memorial

A late-night toilet stop has resulted in a man being hit with a criminal charge after he allegedly urinated on the Anzac Memorial in Sydney’s CBD overnight. The 25-year-old Randwick ... Read more »

Farmers disappointed over Woolworths milk change

Australian farmers have reacted to a news Woolworths will phase out its 10-cent dairy levy, saying that more should be done to support dairy farmers. The levy will be scrapped ... Read more »

Footscray cemetery: man seen loitering at scene where human heads were taken

Police are hunting a man who was seen fleeing a Melbourne cemetery where two human heads were reportedly stolen from coffins this week. The bizarre crime – which occurred at ... Read more »

Parramatta Road pile-up: Two hospitalised after horror six-car crash

A man has been arrested and multiple people hospitalised after a six-car pile-up on a busy Sydney road that occurred shortly after a high-speed police chase was terminated. Parramatta Road ... Read more »

Barnaby Joyce: Deputy PM pulls out of ABC Insiders appearance amid texting furore

Beleaguered Deputy Prime Minister Barnaby Joyce has bailed on a scheduled TV interview after fessing up to sending text messages that were scathing of Prime Minister Scott Morrison. Mr Joyce ... Read more »

Queensland Covid: Case numbers rise, death toll climbs by record 21

Queensland has experienced its deadliest day of the pandemic so far after 21 people died with the virus – more deaths than were recorded in NSW. The latest fatalities in ... Read more »

Barnaby Joyce: Deputy Prime Minister says he offered to resign after embarrassing ScoMo text leak

Deputy Prime Minister Barnaby Joyce has revealed he offered to quit after an embarrassing text leak that revealed he called Prime Minister a “hypocrite and a liar”. Mr Joyce fronted ... Read more »

M80 Ring Road fire: Massive truck fire closes freeway in Melbourne

A truck carrying oil has burst into flames on a major freeway in Melbourne’s northwest, shutting down traffic. The B-double truck caught fire about 6.30am on Saturday, with commuters facing ... Read more »

Marion Barter: Inquest unravelling shock details surrounding schoolteacher, mum's disappearance 25yrs ago

It’s been 25 years since Marion Barter was last seen alive. As a teacher she’d been crowned with a prestigious Queensland Teaching Excellence Award for her work at The Southport ... Read more »

New Wanderers coach Mark Rudan ready for meeting with his former club Western United

Western Sydney Wanderers coach Mark Rudan feels “nothing” for Western United as he prepares to take on his former club on Saturday night. Rudan’s two-year tenure at United ended disastrously, ... Read more »

Former police officer charged with distributing child pornography

A former NSW Police officer has been charged with distributing child pornography. The 46-year-old man was arrested at Burwood Police Station on Friday morning. The man was a senior constable ... Read more »

Serial killer Regina Arthurell applies for bail after alleged sexual touching

A notorious convicted triple-killer accused of a series of a sex crimes has made an application for bail, but details about the court hearing cannot be reported after a magistrate ... Read more »

Demons premiership star Ben Brown thrilled to avoid surgery in second AFL pre-season at Melbourne

Second-year Demon Ben Brown doesn’t want to jinx himself but he’s enjoying one of the best pre-seasons of his life. The most notable feature of Brown’s summer is he avoided ... Read more »

Parliamentary committee blasts ASIC for ‘under-assessing' gravity of Sterling Group scam risks, acting too slow

The corporate watchdog has been lashed by a parliamentary committee over a rent-for-life scam that ripped off seniors and left some homeless, concluding it has “serious concerns” about how the ... Read more »

Google loses Fortnite stay case against Epic Games

The developers of hit game Fortnite have had a win against Google in court after the tech giant lost its bid to have a case against it thrown out. Epic ... Read more »

Prime Minister Scott Morrison washes apprentice's hair during Melbourne visit

Scott Morrison has washed a young woman’s hair during a whistlestop tour of Melbourne’s southeast as he tries to woo voters before the election. The Prime Minister carried out the ... Read more »

Top Iraq War commander explains deadly attack on ISIS leader

A top former commander of Australian forces in Iraq has called the death of ISIS leader Abu Ibrahim al-Hashimi al-Qurayshi a “really good achievement”. Former major general Jim Molan, who ... Read more »

Double murderer Luke David Fawcett sentenced to life behind bars with a lengthy minimum term

A double murderer who allegedly rehearsed one of his killings on camera while wearing a black latex suit has been handed a lengthy prison sentence. Luke David Fawcett, 29, stood ... Read more »

Cleaner who allegedly murdered 92yo didn't look deranged: court

A cleaner accused of murdering her elderly client did not look “deranged” just hours before the alleged violent incident inside the 92-year-old’s Sydney home, a court has been told. Hanny ... Read more »

‘You are in danger': Bushfire threatens lives and homes in WA tourist region

Lives and homes are under threat from an out-of-control bushfire in a tourist region of Western Australia. An emergency warning has been issued for people in an area bounded by ... Read more »

Concerns Stuart Highway subsurface ‘like jelly', no timeframe when it will be operational

There are concerns the subsurface of the frequently used highway that connects regional South Australia and the Northern Territory could be “like jelly” and leave commuters stranded if they drive ... Read more »

Scott Morrison ridiculed for pre-election ‘stunt'

Prime Minister Scott Morrison has copped a savage sledge for posing for a pre-election photo opportunity, before admitting one sector was in “crisis”. The Prime Minister visited the Labor-held Dunkley ... Read more »