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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Tue Jan 22, 2013 3:53 pm 
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Authorities report volcanic eruptions and earthquakes intensifying in Kamchatka


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Three volcanoes in Russia’s Kamchatka continue to send steam and ash into the air while lava flows down their slopes. Volcanic activity on the peninsula has dramatically intensified. Aviation authorities issued an orange security level in the area. The volcanoes Shiveluch, Kizimen and Plosky Talbachek are erupting in different parts of the peninsula simultaneously, causing dozens of local earthquakes, as the vibrations accompanying the eruptions of the giants continue to increase. The biggest and most active is Shiveluch, Kamchatka’s northernmost volcano and 3,283 meters high. Over the last days it made several eruptions of gases, steam and ash, the highest of which reached the 4,900 m above sea level. Unceasing earth tremors send avalanches down its slopes. Sensors installed near the volcano are registering high seismic activity with, active gas generation and thermal anomalies. Activity of Shiveluch started to grow back in 2009 when its dome split with a fissure 30 meters deep. A mere 45 km from Shiveluch there is Klyuchi settlement with 5,000 citizens. Volcanologists say at the moment there is no imminent danger to the town. Stratovolcano Kizimen 3,900 m high in the Kronotsky Reserve, famous for its Geyser Valley, is situated some 265 km from the region’s largest city of Petropavlovsk-Kamchatsky. Its seismic activity also by far exceeds normal: over 80 local earthquakes have been registered near the volcano in the last 24 hours. The pillar of gas and ash rises to 4,400 m above sea level. At night the red glow could be seen in the sky above its crater. Kizimen ‘woke up’ in 2009 after the last big eruption in 1928-29 and since then its activity has only been growing. Plosky Talbachek volcano 3,140 m, a part of two-dome volcanic pile (the second dome Ostry Talbachek is 3,689m), became active on November 27, 2012, some 36 years after precisely predicted “Great fissure Tolbachek eruption” in 1975-76. Plosky Talbachek has been erupting lava for weeks now. Two openings below the crater level were sending lava flows that reached 6 and 18km. The flows are glowing in the nighttime, which means that more and more masses of lava continue to arrive, reported Kamchatka Volcanic Eruption Response Team. Though increased volcanic activity and eruptions pose a certain threat to air travel over the Kamchatka Peninsula, volcanologists closely monitoring the situation report no imminent danger to settlements close to any of the three volcanoes.


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Tue Jan 22, 2013 3:54 pm 
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Puyehue-Cordon Caulle volcano erupts in Chile

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CHILE - A new (so far small) eruption began yesterday from Caulle volcano, local sources reported. Ash emissions reaching 11,000 ft (3.4 km) altitude were reported by Buenos Aires VAAC. Local news report ash fall over Puyehué, Entre Lagos and Osorno today.


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Sat Jan 26, 2013 7:21 pm 
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Growing unrest seen at many of the world’s volcanoes

Bárdarbunga (Iceland): Earthquakes at shallow depths (around 5 km) continue at reduced rate. Reventador (Ecuador): Activity continues, but likely has becoming more intermittent judging from the seismic signal. Visual observations are most of the time impossible. In a special bulletin posted yesterday IGEPN summarizes the beginning of the new eruptive phase: Seismicity began to increase significantly on January 22. The same day, volcanologists received the first reports of sounds of explosions and rumblings heard. On the evening of 22 Jan, new explosive activity produced an ash-rich plume rising 1500 m above the crater, and a new lava flow was detected on the southeastern flank, with its length estimated about 1500 m and the flow front at 2600 m elevation. Volcanologists have also could see on photographs taken that day, that the lava dome from the previous eruptive phase had grown. Kizimen (Kamchatka, Russia): The new lava flow from the summit on the north-eastern flank of the volcano continues to be active, KVERT reports. Incandescence of the volcano summit, hot avalanches, strong gas-steam activity and moderate levels of seismicity accompany this process. Tolbachik (Kamchatka, Russia): The eruption continues with little changes. Lava flows continue to erupt from the southern fissure, accompanied by stable, relatively high levels of tremor. Our French colleagues from activolcans received a brief eyewitness report: (translated from original) “The activity of the active cone was always very intense. Until yesterday (25 Jan) activity was marked by vigorous strombolian explosions that sometimes merged into lava fountains of 200-250 m height.” Kilauea (Hawai'i): Good magma supply continues to feed the lava lakes at the summit (Halema'uma'u) and the rift zone (Pu'u O'o), and lava flows that reach the ocean in multiple locations. Today, a small swarm of shallow quakes is occurring at the upper eastern rift zone a few km SE of the caldera. So far, 6 quakes in the magnitude 2 range have been recorded in this area and under the caldera itself today. Long Valley (California): Tiny quakes continue to be recorded under and near the Long Valley caldera. A small swarm is visible today in an area 20 km to the SE of Mammoth Mountain, at the SW limit of the caldera. Popocatépetl (Central Mexico): The number of gas/steam/minor ash emissions has jumped from rates of less than 1 every 2 hours during most of the past days to about 3 per hour (65 between 24-25 Jan). CENAPRED describes them of low to medium intensity and has observed continuing incandescence at the summit. The latest satellite data show an increased SO2 plume in correspondence with the elevated activity, and some volcanic quakes are visible at the current (now fixed?) seismogram. Santa María / Santiaguito (Guatemala): Explosions have been becoming more frequent; the volcano observatory reports weak to moderate ones with ash plumes rising up to 900 m during the past day. Effusion of lava flows continues. Fuego (Guatemala): During 24-25 Jan, it was not possible to observe the activity, but rumblings generated by explosions were heard. The lava flow length this morning was 800 meters, in southwestern direction. Nevado del Huila (Colombia): An SO2 plume detected on the latest NOAA satellite data suggests a phase of elevated degassing has been taking place. Sangay (Ecuador): A possible ash emission was reported last night (25 Jan) by Washington VAAC, but due to night time, satellite observation was not possible. A small thermal hot spot was detected at the summit, which suggests that probably weak or moderate strombolian activity has resumed in the crater.


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Fri Feb 01, 2013 4:49 am 
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4 volcanoes now erupting simultaneously in Kamchatka


KAMCHATKA - Volcanic eruptions are hardly a rarity. It seems that a new one goes off every few weeks or so somewhere in the world. But a string of four volcanoes erupting in close proximity to one another is virtually unheard of. That, though, is what has taken place in recent weeks on the Kamchatka Peninsula in Russia's Far East. Four different cones and mountains, all within 180 kilometers (110 miles) of each other, have been active simultaneously since late November. Given that volcano experts don't believe that the four volcanoes are being fed from the same magma source, the parallel eruptions would seem to be the geological equivalent of winning the lottery. That volcanoes erupt in Kamchatka is, of course, hardly news. The peninsula, which has a total land mass that is slightly larger than Germany, is one of the most active parts of the infamous “Ring of Fire,” the zone of volcanic and seismic activity that encircles the Pacific Ocean. Three tectonic plates -- the North American Plate, the Okhotsk Plate and the Pacific Plate -- collide beneath Kamchatka, with the peninsula's coastal range boasting 30 active volcanoes. All four of the volcanoes now erupting have shown significant activity in recent years. Most recently, Tobalchik began spewing lava on Nov. 27 of last year, creating the impressive lava flows visible in the 360 degree video taken by Airpano. Shiveluch, the northernmost of the four, prefers shooting columns of ash high into the air, which it has been doing on a regular basis during the last four years since a magma dome in its crater exploded. Besymjanny awoke with a bang in the 1950s following 1,000 years of dormancy and has been active since then, with huge clouds of ash rising on a regular basis. Finally, the southernmost of the quartet, Kisimen, has been erupting regularly since 2010, and there is concern that it could perform a repeat of the violent explosion which sheered of half of the mountain some 1,300 years ago.


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Wed Feb 20, 2013 12:36 pm 
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Italy’s Mount Etna volcano rattled by explosive eruption

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Italy's Mount Etna sent lava and gas shooting toward the stars early this morning (Feb. 19), the first big eruption for the volcano in 2013. The famous Sicilian volcano burst to life overnight, sending a fountain of fire into the air. The dramatic scene was captured in a video by Klaus Dorschfeldt, a videographer and webmaster at Italy's National Institute of Geophysics and Volcanology. Mount Etna, one of the world's most active volcanoes, had emitted signs of an imminent paroxysm in recent weeks. On Jan. 22, lava and strong flashes in the volcano's New Southeast Crater were clearly visible from the Sicilian foothills; these often herald a new paroxysm: short, violent eruptive bursts. Dorschfeldt said he knew Mount Etna's recent signals could precede new activity. “I followed the activity of Etna for many years, and with time you learn to know it as if it were your friend,” he said in an email interview. “Following it constantly (you) learn to be a keen observer and a minor change can lead to something important,” he told OurAmazingPlanet. The tallest volcano in Europe, Mount Etna is almost constantly spewing gas or lava. Its Bocca Nuova crater also erupted earlier this year, from Jan. 10 to Jan. 20. In 2011, Etna's violent bursts were spotted from space


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Sun Mar 17, 2013 2:58 am 
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Alaska’s ever-sizzling Cleveland Volcano releases ash plume

A NASA satellite captured a small cloud of ash puffing from the top of Cleveland volcano on March 14, 2013. Who needs TV in Alaska when you’ve got Mount Cleveland to watch? The ever-simmering volcano in the Aleutian Islands has once again let out an ash plume just one month after last being upgraded after satellite imagery indicated increased temperatures in the peak. NASA’s Earth Observatory released a photo Friday showing a small ash cloud emanating from Cleveland and a field of ash staining the volcano’s winter-white summit. The volcano rests on an uninhabited island about 45 miles west of the community of Nikolski. Cleveland had been listed under “advisory” status by the Alaska Volcano Observatory (AVO) on Wednesday, meaning that it was showing signs of unrest beyond normal background levels, but no imminent indications of eruption. Satellite imagery on a clear day Wednesday suggested no unusual activity at the volcano. In the most recent weekly report for Cleveland, observers said that temperatures in the dome had returned to normal in late February, prompting a downgrade from the “watch” status the volcano had been under. “Anomalous surface temperatures prevalent in late January through mid-February declined, and the last thermal anomaly observed in satellite imagery was reported on February 26,” researchers said, before downgrading the volcano to its current status. Chris Waythomas, a geologist with the AVO, said that Thursday’s ash burp was nothing alarming, or even out of the ordinary, for Cleveland. “If you were to look at the summit of some other pretty constantly active volcanoes … they’d look very similar,” Waythomas said. He said that the peak of Cleveland is typically pretty warm, and almost always snow-free, whether from the heat or from wind in the weather-weary Aleutians blowing across the summit. Cleveland has no real-time monitoring due to its remoteness, so scientists rely on distant seismic equipment and satellite imagery — the latter of which is only really helpful on days when it’s not cloudy. “We’ve been keeping a pretty close eye on it — or as close as we can — and satellite data indicates the lava dome in the crater hasn’t changed at all,” Waythomas said. He said that the internal heat of the volcano can cause steam, and some ash to burst out of the peak on a regular basis, though it doesn’t rise much beyond a couple of hundred feet.


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Mon Mar 25, 2013 9:59 pm 
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It’s not something you see every day on the Navajo Nation, but a crack in the earth has been forming for a long time now and no one seems to have a clear answer. It just sits east of Flagstaff on Luepp Rd and about one mile west of Leupp gas station. It’s gotten so big, that they had to fence it in. According to the U.S. geological survey, they say earthquakes come and go in the northern parts of Arizona, which also covers the reservation, it’s not big enough to rattle down buildings but with the recent collapse of highway 89 near Page, some local residences wonder what mother nature has in mind for the vast reservation. On March 18, we reached out to the Navajo Nation land and geology department, they did not have a particular person to give us an answer, so no one was readily available to explain what that huge gash was in the earth.

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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Thu Apr 04, 2013 4:22 am 
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Mt. Etna eruptions intensifying


a small tourist town in the province of Catania with 9,450 residents — was blanketed by thick black volcanic dust after the eruption. Locals said they heard the explosions and felt violent shaking. They said the air was humid, the sky went dark and there was no visibility. The town’s residents are used to frequent volcanic eruptions – this is the eighth this year alone. The Italian locals now have a massive clearing job to do as roads, gardens and rooftops were covered in up to ten centimeters of ash and stones. Workers use special equipment to blow away the ash and collect solidified lava. The damage was assessed “incalculable” and the region and the neighboring municipalities have declared a state of emergency. When the ash gets wet it takes on a cement-like quality and turns waterproof — causing flooding in streets and houses. Giuseppe Patti, a geologist and teacher, said that the ash is moderately toxic if inhaled and has a mild degree of radioactivity


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Mon Apr 08, 2013 6:56 pm 
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One of Azerbaijan’s largest mud volcanoes erupts: creates cracks 2 km long in earth


Akhtarma-Pashali mud volcano in Hajigabul region of Azerbaijan has erupted, head of the ANAS Institute of Geology's Mud Volcano Department Adil Aliyev told APA. He said the eruption was recorded on April 1. The scientists of the Institute of Geology have carried out research in the area: “This is one of the largest volcanoes of Azerbaijan. Volcano is located 35 km from Shirvan city - in the south-eastern Shirvan. The volcano erupted for the first time in 1948, this is the 7th eruption.” Aliyev said that along with mud the eruption also spouted a great deal of various rocks. “The volcano mud covered 18 hectares, the total area is 220 000 cu m. The average thickness of the spouted material is 120 cm. A lot of cracks have appeared as a result of the volcano. One of them is too big. It spread out over 2 km. The depth of the crack is 2 m, width between 30 – 80 cm. At present the volcano has calmed down. Usually flames are observed when mud volcanoes erupt. No flame is observed in this volcano,” he said. According to the department chief, the diameter of the volcano is about 10 sq km meters: “Several volcanic areas separated from each other are located in the crater of eruption. Every time eruption occurs in a separated volcanic area. 21 percent of mud volcanoes in Azerbaijan pull a lot of oil out of surface. This volcano is also spewing oil. Oil soaked into all wastes. It should be noted that there was also oil shale. All of them will be studied in the laboratory and concrete information about the oil and gas resources of the area will be obtained after the tests.”


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 Post subject: Re: Epidemic of volcano awakenings across planet continues‏
PostPosted: Thu May 09, 2013 7:14 pm 
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Mexico's Popocatepetl volcano erupts


Mexico's Popocatepetl volcano has spewed ash over several towns in the central state of Puebla, just 55 kilometers (35 miles) southeast of Mexico City, but the country's capital was spared. The volcano blew a huge stack of smoke that went 3,200 meters (10,500 feet) skyward late Tuesday, but surrounding residents were not in danger, said Jesus Morales, Puebla's civil protection director. A three-centimeter (one-inch) thick carpet of ash covered nearby towns, forcing people to wear masks. The National Disaster Prevention Center said Wednesday that ash also fell in the state capital of Puebla. The 5,452-meter (17,900-foot) high Popocatepetl is Mexico's second highest peak after the Citlaltepetl volcano.


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