An enormous sinkhole, about 32 metres wide and twice as deep, appeared near a copper mine in Chile, leading experts to investigate what caused it.
So what leads to these great holes in the earth?
Many are marvels of nature. According to National Geographic, natural sinkholes appear when soft underground rock under land is easily dissolved — usually by running water or rain.
Man-made sinkholes are typically found in urban centres, where development including buildings and roads compromises the underlying rock it had been built on.
According to the US Geological Survey, trapped rainwater plays its part. Sinkholes cased by rain are common in East Asia and can be deadly.
Geologists say it is hard to predict when the top layer of rock will collapse. The USGS estimates that sinkholes caused $300 million of damage a year in the US, but that figure could be higher.
UAE finds a sinkhole
In 2021, a blue hole was discovered off the coast of Abu Dhabi in the Arabian Gulf which measured around 12 metres deep and 2,000 metres wide.
The rare underwater sinkhole was found just off Al Dhafra but it pales in size to the deepest blue hole, Dragon Hole, which lies in the South China Sea and reaches around 300 metres beneath the seabed.
Oman's lush green sinkholes
Shrouded in fog, the enormous Tawi Atair sinkhole is one of four that dot Dhofar governorate in southern Oman
Tawi Atair means “Well of Birds” in Dhofar's regional language, a reference to the avian twittering, distorted by echoes, that reverberates off the rock.
Now the sinkholes are marketed as a tourist attraction in Dhofar.
Yemen's 'Well of Hell'
The Oman sinkholes are not to be confused with the “Well of Hell”, or Well of Barhout, the foul-smelling, pitch-black Barhout pit across the border in eastern Yemen that is reputed as a prison for demons.
The giant hole in the desert of Al Mahra province is 30 metres wide and thought to be anywhere between 100 and 250 metres deep.
Take a look at some of the most spectacular sinkholes in the photo gallery above by clicking on the arrows. If using a mobile device, simply swipe. Learn more about some of the sinkholes mentioned in The National stories below.
- Gates of Hell - Turkmenistan
- Fukoaka - Japan
- The Great Blue Hole - Belize
- The Well of Barhout - Yemen
- 2010 Guatemala City sinkhole - Guatemala
- Harbin - China
- Ik Kil cenote - Mexico
- Deep Blue Hole - Bahamas
- 2020 Dead Sea sinkhole - Israel
- Copiapo sinkhole - Chile
- Sheehet sinkhole - Oman
Further reading
A version of this story was first published in August 2022
The%20specs
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Sui Dhaaga: Made in India
Director: Sharat Katariya
Starring: Varun Dhawan, Anushka Sharma, Raghubir Yadav
3.5/5
England's all-time record goalscorers:
Wayne Rooney 53
Bobby Charlton 49
Gary Lineker 48
Jimmy Greaves 44
Michael Owen 40
Tom Finney 30
Nat Lofthouse 30
Alan Shearer 30
Viv Woodward 29
Frank Lampard 29
Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
War
Director: Siddharth Anand
Cast: Hrithik Roshan, Tiger Shroff, Ashutosh Rana, Vaani Kapoor
Rating: Two out of five stars
The specs
Engine: 2.0-litre four-cylinder turbo
Power: 268hp at 5,600rpm
Torque: 380Nm at 4,800rpm
Transmission: CVT auto
Fuel consumption: 9.5L/100km
On sale: now
Price: from Dh195,000
Tamkeen's offering
- Option 1: 70% in year 1, 50% in year 2, 30% in year 3
- Option 2: 50% across three years
- Option 3: 30% across five years
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Our legal consultants
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
COMPANY%20PROFILE
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AI traffic lights to ease congestion at seven points to Sheikh Zayed bin Sultan Street
The seven points are:
Shakhbout bin Sultan Street
Dhafeer Street
Hadbat Al Ghubainah Street (outbound)
Salama bint Butti Street
Al Dhafra Street
Rabdan Street
Umm Yifina Street exit (inbound)
SOUTH%20KOREA%20SQUAD
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Living in...
This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
Specs
Engine: Dual-motor all-wheel-drive electric
Range: Up to 610km
Power: 905hp
Torque: 985Nm
Price: From Dh439,000
Available: Now
My Cat Yugoslavia by Pajtim Statovci
Pushkin Press
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%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Louis%20Leterrier%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStars%3A%3C%2Fstrong%3E%20Vin%20Diesel%2C%20Michelle%20Rodriguez%2C%20Jason%20Statham%2C%20Tyrese%20Gibson%2C%20Ludacris%2C%20Jason%20Momoa%2C%20John%20Cena%2C%20Jordana%20Brewster%2C%20Nathalie%20Emmanuel%2C%20Sung%20Kang%2C%20Brie%20Larson%2C%20Helen%20Mirren%20and%20Charlize%20Theron%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%203%2F5%3C%2Fp%3E%0A
HOSTS
T20 WORLD CUP
2024: US and West Indies; 2026: India and Sri Lanka; 2028: Australia and New Zealand; 2030: England, Ireland and Scotland
ODI WORLD CUP
2027: South Africa, Zimbabwe and Namibia; 2031: India and
Bangladesh
CHAMPIONS TROPHY
2025: Pakistan; 2029: India
Ukraine
Capital: Kiev
Population: 44.13 million
Armed conflict in Donbass
Russia-backed fighters control territory
Results
Women finals: 48kg - Urantsetseg Munkhbat (MGL) bt Distria Krasniqi (KOS); 52kg - Odette Guiffrida (ITA) bt Majlinda Kelmendi (KOS); 57kg - Nora Gjakova (KOS) bt Anastasiia Konkina (Rus)
Men’s finals: 60kg - Amiran Papinashvili (GEO) bt Francisco Garrigos (ESP); 66kg - Vazha Margvelashvili (Geo) bt Yerlan Serikzhanov (KAZ)
More from Rashmee Roshan Lall
UAE currency: the story behind the money in your pockets
SPECS
Toyota land Cruiser 2020 5.7L VXR
Engine: 5.7-litre V8
Transmission: eight-speed automatic
Power: 362hp
Torque: 530Nm
Price: Dh329,000 (base model 4.0L EXR Dh215,900)
MATCH DETAILS
Juventus 2 (Bonucci 36, Ronaldo 90 6)
Genoa 1 (Kouame 40)
Key findings of Jenkins report
- Founder of the Muslim Brotherhood, Hassan al Banna, "accepted the political utility of violence"
- Views of key Muslim Brotherhood ideologue, Sayyid Qutb, have “consistently been understood” as permitting “the use of extreme violence in the pursuit of the perfect Islamic society” and “never been institutionally disowned” by the movement.
- Muslim Brotherhood at all levels has repeatedly defended Hamas attacks against Israel, including the use of suicide bombers and the killing of civilians.
- Laying out the report in the House of Commons, David Cameron told MPs: "The main findings of the review support the conclusion that membership of, association with, or influence by the Muslim Brotherhood should be considered as a possible indicator of extremism."
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Five expert hiking tips
- Always check the weather forecast before setting off
- Make sure you have plenty of water
- Set off early to avoid sudden weather changes in the afternoon
- Wear appropriate clothing and footwear
- Take your litter home with you
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