Separe os nomes com vírgulas.
Tópico em 'Sismologia e Vulcanismo' iniciado por luismeteo3 4 Jan 2017 às 13:41.
9.42am: No volcanic ash present as Mount Agung continues to spew smoke
As Mount Agung continues to worry local residents, the The Darwin Volcanic Ash Advisory Centre (VAAC) in Australia, reports no volcanic ash emissions on Sunday.
The VAAC said in a public notice: “Current webcam shows minor steam/smoke emission located near summit.
“Latest ground reports indicate no volcanic ash present, no other information indicates the presence of ash. No further advisories.”
SUTOPO PURWO NUGROHO TWITTER
Bali volcano LATEST: An intense evacuation effort is taking place on the slopes of Mount Agun
Iceland: 5 volcanoes are preparing for eruption
December 3, 2017 by Marc Szeglat
According to geophysicist Páll Einarsson five volcanoes are preparing to Iceland currently on an eruption. These 5 are Hekla, Katla, Bardarbunga, Grimsvotn and Öræfajökull. In my opinion, still belongs to this list Herdubreid, although you can consider this as part of the Bardarbunga system. Of particular concern is the situation at Öræfajökull. This volcano has the potential to be a major explosive eruption that could hamper air traffic over Europe. According to the geophysicist it could also for the simultaneous eruption of several volcanoes come. During my several months of Iceland-stay in 2004, I talked with PállEinarsson about possible volcanic eruptions. Even then, the researchers expected an imminent outbreak of Katla. This is illustrated in which temporal dimensions you have to think in the context of the geology of the planet. Today there was an earthquake M 3.2 on the eastern edge of the caldera Bardarbunga. Under the Öræfajökull, a small earthquake swarm manifested.
Gunung Agung with increase in seismic
In Bali it rattles under increasing Gunung Agung. The amplitudes of volcanic earthquakes are increasing noticeably. Phased moderate tremor was registered. For hours the volcano shrouded in clouds, so that visual observations are missing.
Earthquake in Ecuador
On the coast, an earthquake occurred Mw 62. The hypocenter was at 40 km depth and 28 km northeast of Bahía de Caráquez. The Geonauts on Reventador may have also felt the earthquake. The volcano itself is currently on its active side and produced frequente ash eruptions.
At http://www.sciencedirect.com/science/article/pii/S0377027313000917 “Fluid ascent and magma storage beneath Gunung Merapi revealed by multi-scale seismic imaging” more about the complex low-velocity zones and magma storage below Gunung Merapi.
Posso estar errado, mas nao me recordo de ter visto neste grupo alguem comentar a erupcao do Laki na Islandia em 1783-84 que foi a mais forte da Islandia, afetando globalmente o clima e principalmente a Europa de forma muito severa. E matou 25% da populacao Islandesa.
Sim o Laki foi enorme, a do Katla também... enfim a história geológica da Islândia está cheia de erupções brutais!
Lahar hoje no Agung...
O Daily Express tem uma agenda muito especifica e moldam as noticias consoante essa agenda. Sao um jornal de extrema direita e muito conservador.
Öræfajökull caldera has deepened considerably
The last eruption in Öræfajökull occurred in 1727. mbl.is/RAX
Volcanologist Ármann Höskuldsson says that the situation at Öræfajökull volcano is "Far from normal." There's still geothermal heat in the area and the caldera has deepened by some 20 metres.
A 3-D image made by specialists at the Geological Institute of the University of Iceland indicates that the caldera has deepened by twenty metres and that crevasses have become larger since it was first spotted.
Emergency evacuation plan for Öræfajökull volcano
The image was made using various information, not in the least the photographs of Morgunblaðið photographer Ragnar Axelsson who flew over the glacier on November 19th and again on November 28th.
"We see a greatly increased pattern of fissures around the caldera. It's now more of a drop shape than a circle, lengthening towards the South West," says Ingibjörg Jónsdóttir at the University of Iceland speaking to Morgunblaðið today.