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Rare 420-metre deep sinkhole discovered in China

Photo taken on March 3 shows groundwater found at a huge doline in Donglan County, Hechi City of south China's Guangxi Zhuang Autonomous Region.

Photo taken on March 3 shows groundwater found at a huge doline in Donglan County, Hechi City of south China's Guangxi Zhuang Autonomous Region.
Scientists from China and France have discovered a rare huge sinkhole, habitat to many species in south China.

The 420-metre deep doline, or sink hole, was among several discovered by scientists during an eight-day expedition that began on February 26 in Donglan county of Guangxi Zhuang Autonomous region.

Dolines found in Guangxi are normally around 250 metres deep, state-run Xinhua news agency reported.

Many species live in these dolines, including bats and snakes. Scientists also found some as-yet unidentified vertebrates and plants.

Dolines are special geological landscape formations found in karst regions, formed by repeated cave-ins of underground caves. They are common in China, Mexico and Papua New Guinea.

Photo taken on March 3 shows scientists exploring a huge doline in Donglan County, Hechi City of south China's Guangxi Zhuang Autonomous Region.

Photo taken on March 3 shows scientists exploring a huge doline in Donglan County, Hechi City of south China's Guangxi Zhuang Autonomous Region.
Source: Xinhua

Windsock

Powerful sandstorm turns city red in northern China

sandstorm in Mongolia
© Youtube/CCTV+ (screen capture)
A sandstorm hit north and northwest China on Friday, adversely affecting local residents and traffic conditions. In Erenhot City of Inner Mongolia Autonomous Region, the sandstorm brought by the gale turned the city red, decreasing visibility to below 50 meters. Strong winds and sand limited visibility on the highway to below 10 meters.


Cloud Precipitation

Thunderstorms and heavy rain bring flash flooding to UAE

UAE flash floods
© Youtube/javeed khan (screen capture)

System also brings deluge and rain to neighbouring Oman


Heavy rains and thunderstorms have lashed Fujairah since Wednesday evening, with residents reporting waterlogging in the emirate even as a flashflood warning remains in place for surrounding wadis.

The UAE's National Centre for Meteorology and Seismology (NCMS) issued a weather warning: "Chance of towering clouds forming over the Oman Sea and the east coast of UAE, associated with thundery showers and fresh winds."

The stormy weather has continued into the morning hours of Thursday, with heavy rains reported in Khor Fakkan, Dibba and Masafi this morning, while overflowing wadis have seen some roads blocked for the interim.


Alarm Clock

Magnitude 4.7 earthquake recorded off Vancouver Island

Vancouver Island earthquake
© PNSN
A magnitude 4.7 earthquake was detected off the west coast of Vancouver Island this morning.

According to the United States Geological Survey, the tremor hit at 10:38 a.m. PST and had an epicentre 176 kilometres southwest of Port Hardy - near the border of the Explorer and Juan de Fuca plates. It had a depth of 20 kilometres.

No damage can be expected given the location, and a tsunamis warning was not declared.

Thousands of small earthquakes hit B.C. every year, but only a small fraction have a magnitude of 4.0 or greater.

Bizarro Earth

5.0 magnitude earthquake strikes off coast of Mexico - USGS

Mexico
© AP
A 5.0-magnitude earthquake occurred on Saturday near the Mexican coast, in the southeastern part of the country, the US Geological Survey (USGS) reported.

The epicenter of the earthquake was located 46 kilometers (28.6 miles) southwest of the town of Tres Picos in Chiapas. It struck about 80 kilometers (50 miles) deep, according to the seismologists.
Mexico earthquake
© USGS
There were neither immediate reports of damage or casualties, nor a tsunami threat.

The last relatively deep earthquake occured near of Tres Picos in mid-December. The seismologists initially measured the strength of the earthquake at 6.4 but later upgraded it to a significantly stronger 6.6 magnitude.

Umbrella

Anomalous giant waves strike the coast of Chile

waves Chile

Giant waves in Chile
Dangerous and anomalous tidal waves are currently hitting the Chilean coast.

The ports of Iquique, Mejillones, Tocopilla, Chañaral, Hanga Roa, Quintero have been closed.

Wave
Storng waves in Vina del Mare:
Fuertes marejadas reportadas hoy en ViñadelMar Chile, ordenan evacuación total imagen de @ExtraChile pic.twitter.com/zlcyVSggAn

— FAUSTO ADRIÁN (@fauadrian) March 3, 2016

Attention

Whale shark found dead at Palghar, India

a whale shark

A whale shark
A 7.3 metre long whale shark washed ashore off the Palghar coast, near Mumbai today. The Maharashtra forest officials rushed to the site to take measurements of the dead fish which attracted many curious locals to the area.

"The whale shark was found dead near the Palghar shore. We will have to ascertain the cause of its death. It is a matter of concern that so many big sea creatures like whales, dolphins and now whale shark are being found dead on the coasts so frequently," said the chief conservator of forests (mangrove cell) N Vasudevan.

He added that two days ago, a 10 feet long dolphin was found at Vasai, while on Tuesday this week, an over six feet long dead dolphin was found at the Gorai coast of Mumbai.

Dead whale shark

Dead whale shark

Attention

Rare albino whale spotted off coast of Mexico

Albino whale

Albino whale
A rare, albino grey whale has been spotted off Mexico's Pacific coast. Marine biologists from the National Commission of Natural Protected Areas (CONANP) captured footage of the magnificent, white mammal swimming with her normal-coloured calf during an annual census off the coast of Baja California.

The bright white whale, which actually belongs to the grey whale species, or Eschrichtius robustus, has been given the nickname Gallon of Milk. Gallon of Milk was first spotted during the 2008/09 season as a juvenile with characteristics of albinism, hence the name. The whale and her calf were sighted in the area known as Isla Alambre, in la Laguna Ojo de Liebre.

Albinism is a genetic disorder caused by mutations, resulting in a reduction or complete absence of the pigment melanin. This condition has been recorded in different mammals, birds and reptiles, both in wildlife and in captivity. However, there are few documented records of albino marine mammals.


Question

Scientists baffled by relentless rise of two Caribbean lakes

The Haitian village of Lunettes floating in Lake Azuéi
© Alessandro Grassani
The Haitian village of Lunettes appears to float in Lake Azuéi, also known as Étang Saumâtre. The lake's water level has risen so much that it has swamped thousands of acres.
In Haiti and the Dominican Republic, the lakes are flooding farmland, swallowing communities and leading to deforestation.


On a recent calm day, the surface of Lake Azuéi has no waves, not even any ripples. Pillars of pastel-colored concrete break the still surface, the tops of what once were houses. They are all that's visible of the community that once thrived here.

Alberto Pierre, a skinny, wide-eyed 25-year-old, said the submerged village where he grew up wasn't even near the lake. "The water used to be many kilometers from here."

Lake Azuéi, the largest lake in Haiti, lies about 18 miles east of Port-au-Prince, the capital, nestled along the border with the Dominican Republic. Also known as Étang Saumâtre, the lake rose so much between 2004 and 2009 that it engulfed dozens of square miles.

"At first we put rocks so it wouldn't come into our houses," Pierre says. "But then the water just overran the rocks." Families in the village of Letant began abandoning their houses, building huts on higher ground using wood, tarps, whatever they could find. By 2012, all 83 houses had been vacated.

"We don't know why the water is rising," he says.

In fact, nobody does. There seems to be no logic to the lake's rise. Experts from the United Nations, a French engineering firm, a Dominican Republic university, a New York City college and many others have looked for clues to explain the rise of Lake Azuéi and neighboring Lake Enriquillo, just across the border in the Dominican Republic. But few of the theories seem to hold water. Some now hypothesize the phenomenon is related to climate change, but the evidence is counterintuitive: Unlike ocean levels, which rise with climate change, lakes tend to shrink.

Cloud Lightning

Rare 'thundersnow' storm hits Montreal, Canada

thundersnow storm in Montreal
© Xtrem Chase Quebec/YouTube
A rare "thundersnow" storm hit Montreal earlier this week.
A rare weather event known as "thundersnow" was captured on Feb. 29 in Montreal.

Combining a unique mix of snow, lightning and thunder, the snow shower came just before a major storm hit the city.

Thundersnow events are rare: less than 1 percent of all snowstorms are associated with thunder, according to ABC News. They require just the right mix of atmospheric instability and upward motion of warm air that make both snowstorms and thunder unique.

Thundersnow has also proved helpful for meteorologists predicting future storms. "Thunder and lightning existing in the storm are usually a symptom of something else," Patrick Market, associate professor of atmosphere science at the University of Missouri, told ABC News. "That's usually a harbinger of somebody getting a significant snowfall later on."


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