Text Researchers realized about five years ago that the area below and around Uturuncu is steadily rising — blowing up like a giant balloon under a wide disc of land some 43 miles (70 kilometers) across. Satellite data revealed the region was inflating by 1 to 2 centimeters (less than an inch) per year and had been doing so for at least 20 years, when satellite observations began.
Uturuncu is surrounded by one of the most dense concentrations of supervolcanoes on the planet, all of which fell silent some 1 million years ago.
Scientists figured out from the inflation rate that the pocket of magma beneath the volcano was growing by about 27 cubic feet (1 cubic meter) per second.
Uturumcu itself is in the same class as Mount St. Helens in Washington state, but its aggressive rise could indicate that a new supervolcano is on the way. Or not. news.sudanvisiondaily.com...
TextSuch a volcano could produce an eruption of ash, rock and pumice 1,000 times the strength of the 1980 eruption of Mount St. Helens in Washington state, the worst volcanic event in modern American history, and 10,000 times that of the Icelandic eruptions in 2010 that paralyzed global air traffic for weeks.
Saturday, 12 October 2013, 12:00pm - White Island activity update; Volcanic Alert Level is raised to Level 2 and the Aviation Colour Code is raised from Yellow to Orange.
A moderate explosive eruption occurred at White Island (Whakāri) at approximately 8:09pm NZDT last night. The eruption lasted about 1 minute based on data from acoustic and seismic sensors, and was confirmed by subsequent analysis of web camera images during daylight hours. As a consequence of this activity the Volcanic Alert Level is now raised to Level 2 and the Aviation Colour Code to Orange.
Observations from the web cameras show an explosive eruption producing an ash cloud column that expanded across the Main Crater floor. New mud deposited on the crater floor is evident in the web camera images from the crater rim this morning. The present activity is a continuation of the unrest observed at White Island for the past 15 months and hazardous eruptions of this type may occur with no warning. This eruption is larger than recent events and would have been life threatening to people on the island. info.geonet.org.nz...
Magnitude 3.8 earthquake in Long Valley region is tectonic, and not volcanic, in origin
A thermal camera standing 250 meters away from an active volcanic vent captured this video of molten lava spewing from Italy’s Stromboli volcano.
The camera used here detects heat, allowing the hot volcanic particles and their trajectories to be easily seen and tracked. By collecting an image every 200th of a second, the camera produces a series of images that can be put together as a video.
A new explosive eruption started yesterday night (23 Oct). An ash plume was detected drifting at an estimated 16,000 ft (5 km) altitude and drifting ESE. At least 1 mm of ash have been deposited in the Nalychevo valley, a natural park between Zhupanovsky and Avachinsky volcanoes. Zhupanovsky volcano lies about 70 km northeast of the capital of Kamchatka, Petropavlovsk-Kamchatsky, and had its last eruption in 1959. It is a complex volcano composed of several overlapping cones aligned on a roughly east-west oriented axis. The new eruption comes from the same vent that has been also the site of all known historical eruptions, located west of the highest point of the volcanic massif.
I understand there are a number of volcanoes waking up after thousands of years of dormancy, and many others are awaking. I was hoping there are some ATS experts who could chime in with some info.
The Japanese Coast Guard reported that a Surtseyan eruption 500 m SE from the coast of Nishimo-shima generated a new island called Niijima on 20 November. The island was about 300 x 200 m, and developed a crater 150m wide. Discolored water surrounded the island. Based on satellite images, as well as accounts from the Japanese Coast Guard and JMA, the Tokyo VAAC reported that a plume rose 600 m. On 22 November the eruption continued and incandescence within the crater was observed. An ash plume rose 900 m and drifted SE. On 24 November lava flows from the crater extended to the coastline of the island, and bombs continued to be ejected.