Earth ChangesS


Megaphone

Lava Lake at Kilauea has Reached One of its Highest Levels Ever

lava lake @ Kilauea
© Hawaii News Now
Scientists on the Big Island say it's been an especially active week at Kilauea volcano - as it continues to erupt in two locations: on the east rift zone and at the summit.

The volcanic activity along the summit has died down a little since Monday - when the lava lake at Halemaumau crater reached one of the highest levels ever observed. But it's still fascinating for both geologists and tourists alike.

Kilauea's fiery summit cauldron ripped open this week, and its beauty is matched only by the roar of its fury. Summit activity isn't as intense as it was earlier in the week, but the changes have delighted scientists.

"It is an exciting time for volcanologists," says Janet Babb of the U.S. Geological Survey's Hawaiian Volcano Observatory. "This is the job that we're trained to do and the kind of research that we're involved in, so it has been exciting."

On Monday, they watched as a number of rocks fell into Kilauea's summit vent. Sulfur dioxide emissions remain elevated. Babb explains, "Large sections of the rim of the vent fell into the lava lake below. It caused a lot of degassing, and in a few instances, some explosive events that caused a lot of dusty, ashy plumes to rise skyward."

Cloud Lightning

Goma Volcano Set for Another Eruption

eruption of Mt. Nyamuragira
© planetdiary.comPrevious eruption of Mt. Nyamuragira
Previous eruptions in recent times may be dwarfed by the expected next eruption of Mt. Nyiragongo, which towers over the Eastern Congolese city of Goma. Nine years ago, in January 2002, when the region's most active volcano erupted, the reportedly rather liquid lava swiftly covered a sizeable part of the city and even brought air transport to a complete standstill, when a portion of the runway was covered by lava, which when finally cooled down, was measured to be 6 and more feet thick and as wide as a kilometer, leaving total destruction in its wake and making over 120,000 residents homeless.

The eruption then reached as far as Lake Kivu and only a major effort supported by the UN and international partners made the airport somehow usable again, albeit with a still shortened runway, which makes the use of larger aircraft impossible and impacts on the operations of the airport even with smaller jets. Accidents have, in fact, been recorded at Goma attributed at the shortened runway making every landing and take off an adventure of sorts.

An earlier major eruption in 1977 also caused similar havoc, but population numbers were considerably less back then and the main path of the lava was not directed frontally against Goma. There are reportedly only two main exit routes for the lava, as researchers have established and, therefore, the chance of Goma being hit again during the next eruption is 50/50.

Evil Rays

Ghana: Parts of Accra Metropolis experience tremor

Residents of some communities in Accra at dawn on Wednesday experienced what eyewitnesses described as an earth tremor.

The incident, which occurred around 0400 hours affected communities like Taifa, Dome, Tantra Hills, Achimota, Kwabenya, Ashongman and East Legon, from where residents called a local radio station for confirmation.

Official sources, however, could not confirm the incident to the Ghana News Agency (GNA) as the nation did not have the equipment to measure incidence of earthquakes or tremors.

Evil Rays

Update: Seventeen Earthquakes Shake Greenbrier, Arkansas Wednesday

Click here to watch the video.

People who live in northern Faulkner County are feeling the ground shake again.

Seventeen earthquakes happened in the Greenbrier area Wednesday between 3:30 in the morning and 11:05 in the evening. The strongest of those registered 3.5 on the Richter Scale. The second strongest was a 2.9 tremor.

There have been dozens of quakes since Monday around Greenbrier according to the United States Geological Survey (USGS). Click here for more information.

According to Wikipedia, earthquakes that register 2.0 to 2.9 in magnitude are classified as minor and are generally not felt. There are about 1,000 of these everyday around the world.

Those that measure 3.0 to 3.9 are also classified as minor. They are often felt, but rarely cause damage and there are 49,000 of them around the world daily.

Cloud Lightning

Crocodile Tears For the Magnates: Rio, Woodside Affected as Two Cyclones Lash Australia

Two cyclones in Australia's north have caused storms and flooding, affecting mining and energy projects for companies including Rio Tinto Group and Woodside Petroleum Ltd.

Tropical Cyclone Dianne was 385 kilometers (240 miles) northwest of the Western Australian town of Exmouth and near stationary at about 11 p.m. local time, according to the Bureau of Meteorology. The storm is forecast to intensify from Category 2 to Category 3 by 11 p.m. tomorrow as it moves southwest. Flood warnings are in place for some Pilbara and Mid West regions.

The storm slowed transport at Rio Tinto's iron ore operations in the Pilbara and halted production at Woodside's Enfield oil field. A La Nina event has brought wet weather to Australia's east and north and typically increases the number of cyclones during the November to April period, according to the bureau.

Bizarro Earth

Fewer Big Fish in the Sea

Overfishing
© Getty ImagesTuna fishing in the Indian Ocean. A study shows the world's large fish have declined by two-thirds.

Fewer big, predatory fish are swimming in the world's oceans because of overfishing by humans, leaving smaller fish to thrive and double in force over the past 100 years, scientists said Friday.

Big fish such as cod, tuna, and groupers have declined worldwide by two-thirds while the number of anchovies, sardines and capelin has surged in their absence, said University of British Columbia researchers.

Meanwhile, people around the world are fishing harder and coming up with the same or fewer numbers in their catch, indicating that humans may have maxed out the ocean's capacity to provide us with food.

"Overfishing has absolutely had a 'when cats are away, the mice will play' effect on our oceans," said Villy Christensen, a professor in the UBC Fisheries Centre who presented the research findings at the American Association for the Advancement of Science annual conference in Washington.

"By removing the large, predatory species from the ocean, small forage fish have been left to thrive."

Sun

Northern Norway thrown into darkness by power outage

Image
© StatnettThe alleged source of the power outage that caused parts of northern Norway to be without power Thursday morning
[This is a Google translation of the original article on Aftenposten.no]

Narvik, Harstad, Andøy, Lofoten and Vesterålen is dark between 8 am and 10 Thursday because of strain on the network, said Statnett.

Power is now back in Northern Norway, but new areas may be switched off later in the day.

Statnett says on its website that the power situation in northern Norway is very vulnerable for a break from the power line to begin again Kvandal Nordland Wednesday morning.

Statoil's gas power plant at Melkøya now supplies 30 MW, approximately. 15 percent of its total capacity to the regular grid to ensure power supply in Finnmark, but there was not enough.

Statnett had yet seen in the works, part of a notification, Sonevis shut off power to the north of Tysfjord in Nordland.

Crews from Statnett working to rectify the error, but this may take several days, partly because of weather conditions. There are strong winds in the area and it's very cold, the company said.

The power grid in northern Norway is now very vulnerable to several flaws.

Today's power shutdown came entirely as a surprise to everyone in Harstad.

X

Sri Lanka: Mysterious disease poisons fish in Batticaloa lagoon

Following the floods, fishermen have to face this new problem, which will seriously affect the population's main source of livelihood. Silence of authorities.

Colombo - The fish in the Batticaloa lagoon, in the eastern province of Sri Lanka, are being decimated by an unknown disease, probably caused by floods that have lashed the region for weeks. Sidambarapullai Piyadasa, president of the Tamil community of fishermen, speaking by phone to AsiaNews laments: "Fishermen on the lagoon have had to cope with this problem for over three months now, but despite our cries for help, the authorities have remained totally silent".

Fish suffering from this disease "are red or orange in colour, some bearing strange wounds," said Sidambarapullai. As explained by the leader of the community, because of the disease almost 85% of the daily catch is lost. This causes severe damage to the 11,750 fishermen (about 3,500 families) of Batticaloa, whose livelihood depends almost entirely on fishing.

Radar

US: Swarm of Unexplained Earthquakes Strikes Arkansas

Image
© USGS Real-time Earthquake MonitorArkansas has been hit with more than 30 earthquakes since Sunday.
Jim Sutterfield was briefly puzzled by a thumping sound that seemed to slam the back of his office chair. But when the small-town Arkansas fire chief turned and saw no one was around, he quickly realized it was just an earthquake - again.

"That was only my second time to feel one, but others here have felt them for three or four months now," Greenbrier chief Jim Sutterfield said after feeling the latest tremor on Wednesday. "Now when it happens, people say, 'Well, there's another one.'"

Several small earthquakes ranging in magnitude from 1.8 to 3.8 have rattled the north-central Arkansas cities of Greenbrier and Guy this week, and the cause is unknown.

The U.S. Geological Survey has reported more than 30 earthquakes in the area since Sunday, including a magnitude 3.8 quake Thursday morning and at least 16 others occurring Wednesday, two of which were magnitude 3.2 and 3.5. More than 700 quakes have occurred in the region over the past six months.

Scott Ausbrooks, geohazards supervisor for the Arkansas Geological Survey, said the quakes are part of what is now called the Guy earthquake swarm - a series of mild earthquakes that have been occurring periodically since 2009. A similar swarm occurred in the early 1980s when a series of quakes hit Enola, Ark.

Attention

Is Germany's super-volcano awakening? We think so...

Image
Koblenz - The scene of Germany's famous Laacher See lake looks picturesque and serene but underneath the calm surface of the waters lies a potential killer that could devastate a good portion of Europe. The last time the Laacher See super-volcano erupted 12,000 years ago, it deposited ash across much of Europe. On July 30, 2010, a 5.6 earthquake struck the region and that likely signaled an awakening of the giant sleeping caldera. That Laacher See is a potentially active volcano has been proven by seismic activities and heavy thermal anomalies under the lake. Carbon dioxide gas from magma still bubbles up at the southeastern shore, and scientists believe that a new eruption could happen at any time. Today the region near Koblenz was shaken by a swarm of 7 earthquakes beginning with a 4.5 magnitude quake which erupted at a depth of 6 km. Across the planet, the giant dormant volcanoes, one by one, are being stirred from their long and ancient slumber. Earth is on the precipice of major geological change. See pages 134-135 in my book for the full Laacher See super-volcano story.

* 4.5 quake 6 km - Germany
* 3.2 quake 11 km - Germany
* 2.4 quake 12 km - Germany
* 3.7 quake 20 km - Germany
* 2.1 quake 20 km - Germany
* 3.4 quake 12 km - Germany
* 2.0 quake 10 km - Germany