Archive for the ‘Erozija obala’ Category
An erosion bank by the coast, 4–6 m high, created by backflow of water from the flatland SE of Víti.
The rockslide which occurred in Askja 21 July 2014 and descended into the caldera lake is one of the largest known rockslides since the settlement of Iceland (see preliminary results).
The slide triggered a tsunami in the lake that washed up on the lakeshores all around the lake, reaching up to 20–30 m and even higher in places. The wave travelled farthest around 400 m into the flatland SE of the crater Víti.
It was fortunate that the rockslide occurred late at night and nobody was close to the water, otherwise it would have been extremely hazardous. A few hours earlier, tens of people were at the lakeshore who might not have been able to escape the tsunami.
There were no eyewitnesses to the slide, but members of a search- and rescue team saw a white plume rise up above Askja at 23:27. The steam plume was created when the slide exposed shallow geothermal areas in the release area. In addition, a dust cloud created by the rock slide may have contributed to the plume.
Askja consists of 3–4 calderas. The youngest one hosts Lake Öskjuvatn and was formed over a period of 30 years after an eruption in 1875. Before that, Öskjuvatn did not exist and, therefore, the rims of the caldera are geologically a very young area. Such slopes are more unstable than slopes in older landscape. It is clear from geological evidence that rockslides similar to the one that fell in July 2014 have been released before from the rims of Askja, although people have not noticed them.
Further rockslides in Askja should, therefore, be expected within the next years, decades or centuries. Consequently, travel near the lake is associated with a certain risk. A person by the lake that notices a landslide should move immediately up the hill and away from the lake. It takes a tsunami wave about 1–2 minutes to travel across the lake and sound takes about 10 sec to cover that distance. Thus, people have a very short time to escape if a big rockslide is released from the other side of the lake.
The Icelandic Meteorological Office and the University of Iceland have compiled a collective memo with the preliminary results of observations of this largest rockslide since the settlement of Iceland. These results are presented on the web with photos, maps, graphs and thorough explanations.
July 29, 2014
Lakefront cottage owners gathered Tuesday to discuss next steps.
“Because we are where we are, we’ve fallen through the cracks and I don’t think we deserve to fall through the cracks,” said Jodi Dillabough.
“No pun intended,” one of her neighbours pointed out.
“No, you’re right, no pun intended,” she said. Their cabins have literally fallen through large crevasses in the earth, which keep expanding. An evacuation notice was given June 30th to nine cottage owners after a devastating landslide,
caused by erosion and heavy rainfall, made the buildings unsafe.
Cabins teetered on the brink of falling into the lake. Now, a month later, they have begun to collapse. Still, they’ve received no support from the province. Owners have reached out to the Water Security Agency and their local MLA. Insurance doesn’t cover landslides, but since the situation is so extreme, they hope the province can come forward with some sort of compensation or at least assistance to clean up the mess.
“We’ve been talking to the council, which is just three people. It’s a small resort staff so they don’t have any engineers or technical staff working for them,” explained owner Gerry Lucik.
Meanwhile, owner Jane Howie explained the emotions being felt by the community: “It’s like losing a part of you. As a kid, I grew up here. My nieces and nephews grew up here and it’s really, really sad.”
They’re not blood relatives, but the owners are all very close. Howie added, “It’s beach family. These cottage owners have been down here for over 40 years.”
The Wasnik family was one of the last to arrive Tuesday to some of the worst damage so far. Their cottage was the first to give way and completely collapse.
“You’re not going to knock the bottom three feet of the Gyprock off and replace it. This is done. You ain’t fixing this,” said Bryan Wasnik.
“We have nothing left. We have no land to rebuild,” said Wasnik’s sister, Brenda Miller, through tears.
All they can do is console each other as they wait to hear from the province.
July 27th, 2014
Informal settlers living along eight major waterways in Metro Manila are being relocated to safer communities at 200 families every week as part of the government’s flood-control initiatives, according to Interior Secretary Manuel Roxas.
“The relocation of informal settler families from the slums of Metro Manila to government relocation sites offers beneficiaries of Oplan Likas renewed hope for a better life,” Roxas said in a statement on Saturday.
Oplan Likas, which stands for “Lumikas para Ligtas sa Kalamidad at Sakit,” aims to transfer some 100,000 families living in danger zones to government housing projects in the provinces of Cavite, Laguna and Batangas.
Since the project started last year, Roxas said, a total of 25,000 families had been moved to relocation sites outside the capital.
The Interior secretary expressed confidence that the experience of former slum dwellers who agreed to be transferred to government relocation sites would convince other informal settlers to “start a new life in safer, better communities elsewhere.”
On Friday, Roxas joined Pasay City Mayor Antonino Calixto and Pasay Rep. Emi Calixto-Rubiano in a “send-off ceremony” for 98 families who used to live along Estero Tripa de Gallina in Barangay 156.
The families agreed to move to a relocation site of the National Housing Authority in Barangay Hugo Perez, Trece Martirez City, in Cavite.
Saying state housing projects were located near industrial zones in the provinces, Roxas maintained that there would be job opportunities for the relocated residents.
He said the housing project in Cavite, for example, was built “according to national standards,” and has water and power supply, as well as a school building.
Approximately 178 barrels of crude oil – about 7,500 gallons – were spilled Friday afternoon from a storage tank into the Poudre River.
According to the Colorado Department of Natural Resources, the cause of the spill, east-southeast of Windsor, was spring flood waters undercutting a bank, causing the tank to drop downward and damaging a valve. This allowed oil to escape from that broken valve.
The tank is operated by Noble Energy. The company discovered the leak and reported it to authorities. The department said water quality staff from the Colorado Department of Public Health and Environment were at the scene and no drinking water intakes had been affected by the spill.
Standing water with some hydrocarbons were found in one low-lying area near the tank; also, vegetation was stained for about one-quarter mile downstream of the site.
Time needed to make this post: 8:17-8:28
Homeowners forced to move out of their cliffhanging home in Texas weeks ago had to have it burned to the ground today. Torching it was simply the best way to get rid of it before it caused an even bigger mess by falling into the lake below.
Fire crews set fire to the house today, reports NBC Dallas Fort Worth (link has video that autoplays), after the first option of hauling the home away from the edge of the cliff with a giant net was dismissed, and a third idea of allowing the home to slide naturally into the lake (debris to be collected later) was abandoned as too expensive.
The homeowners of the house — appraised at more than $700,000 — .. was built in 2008 and it had passed inspection before they bought it in 2012.
But when a giant crack appeared in April, they were told it was time to move out, as the home was unsafe. Part of the cliff fell away earlier this week, with some of the house dropping into the water a short time after.
“It’s like, ’Is that really my home? Or is that something else that you’re watching on TV?’ And then you’re like, “Good grief, that is my home,’” the homeowner, who is currently in Florida, told the station of knowing his home had been reduced to ashes. “Yeah, it’s a trying time, certainly.”
To add to the likely pain of losing your home, the man and his wife will also be responsible now for paying for the cleanup and disposal of the remains.
Published on June 13, 2014
Published on June 11, 2014
A vacant luxury house appears on the verge of tumbling 75 feet into a Central Texas lake because a cliff is collapsing beneath the property.
.. the 4,000 square-foot-home above Lake Whitney has been condemned and the owners evacuated about two weeks ago.
Hill County Sheriff’s Office Chief Deputy Mark Wilson says another chunk of cliff broke off Tuesday night.
Soil and other debris have been falling from beneath the home at White Bluff Resort, some 60 miles south of Fort Worth. Tax records show the house was built in 2007 and is worth more than $700,000.
In this image taken from Tuesday, June 10, 2014 video provided by WFAA-TV, a luxury house teeters on a cliff about 75 feet above Lake Whitney in Whitney, Texas. WFAA-TV reported Wednesday, June 11, 2014 that the house has been condemned and the owners evacuated about two weeks ago.
.. … A massive piece of land under the house fell into the lake on Tuesday night, neighbors told local media.
Video footage shows about half of the house on the ground and half in the air, with a dangling air conditioning unit tethered to the structure.
The land started to give way in February, and since then about 50 meters of territory that separated it from the water’s edge has eroded, said Mark Wilson, the chief deputy for the Hill County Sheriff’s Department.
The owners, who use it as a second home, have abandoned the property while people are being kept away from it on land and in the lake below.
“When they built the house, it looked like a safe area, away from the bluff. There is just a lot of the bluff that gave way,” Wilson said.
Published on Jun 10, 2014
Coastal erosion at Someshwara during Southwest Monsoon of 2014, India.
Advancing waves and the subsequent erosion have already claimed buildings and property along the coast from Uchil to Ullal. But the “permanent solution”, costing Rs. 911 crore, will only come into effect from next year, according to U.T. Khader, Minister of Health and Family Welfare.
Coastal properties in places like Ullal, Kotepura, Kodi, Mogaveerpatna, Oiliyarinagar were in danger of being washed away this year.
The Minister assured the people that the port would grant temporary relief such as dumping boulders and sand bags. This will be until the Rs. 236 crore Asian Development Bank’s sea wall project takes off. “The ADB project is a permanent solution, but that will take three years. But as the berms and reefs are being constructed, the effects of sea erosion will be abated.
Until then, the port department will ensure boulders are constantly replaced along the coast,” Mr. Khader, who is also the local MLA, said. He added that the work was expected to start from October.
Speaking on the administration’s readiness, for what has become an annual experience during the monsoons, he said: “There are weak spots along the coast, but you can’t tell when it will hit where. Some had objected to construction of a concrete wall or dumping of stones in front of their properties, and these properties are being damaged this year.”
With the frothy churning of the ocean and strong waves beating down on the coast, Chetan S. Kalvi, Chief Officer, Ullal Town Municipal Corporation, said the erosion this time was “worse” than last time.
“A lit of beach has been lost. Usually, the erosion starts later, but this time, it has started when the monsoons are yet to intensify,” he said.
At Summer Sands, a resort at Ullal, an open-air auditorium balances precariously on the edge of a precipice created by the swirling waves. Mr. Khader assured him boulders will be unloaded as soon as the tides recede.
A little distance away at Uchil, Chandrashekhar U., a fisherman, says within the matter of days, nearly 50m of beach has disappeared.
The stones dumped in front of his house were “too small” and were being washed away, he told Mr. Khader. So far a store room for his nets and ice boxes have been damaged.