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VolcanoesS
© Alain Beauparlant / AVOGreat Sitkin volcano eruption in Alaska on November 19 2017
"Recent observations of a robust steam plume and a period of gradually increasing seismicity over several months indicate that Great Sitkin Volcano has become restless and is exhibiting behavior that is above background levels. AVO is thus raising the aviation color code and volcano alert level to YELLOW/ADVISORY.
"Photographs of the volcano taken by local observers on Sunday, November 19 show a light-colored vapor plume rising about 300 m (1,000 ft) above the vent area and extending about 15-20 km (9 - 12 mi) to the south. Nothing unusual was observed in seismic or infrasound data around the time the photographs were taken and nothing noteworthy has been observed in satellite data since the emissions were observed.
© AP/Gregory BullPopocatepetl Volcano spews smoke and ash
Mexico's National Center for Prevention of Disasters (CENAPRED) warned residents in Central Mexico not to approach the volcano's crater and of the potential for volcanic ash to fall to the southeast of Popocatepetl.
Eruptions in 2013 from Popocatepetl, Mexico's most active volcano, caused airlines to temporarily cancel flights to and from Mexico City due to the threat from volcanic ash.
© NAOJ/Nagoya University/JAXAFig. 1 Fifty years of constant Sun observation.
The abstract states:
"... we found that the microwave spectra at the solar minima of Cycles 20-24 agree with each other. These results show that the average atmospheric structure above the upper chromosphere in the quiet-Sun has not varied for half a century, and suggest that the energy input for atmospheric heating from the sub-photosphere to the corona have not changed in the quiet-Sun despite significantly differing strengths of magnetic activity in the last five solar cycles."See Figure 1 above.
© Darren Whiteside / Reuters
The volcano on the Indonesian resort island erupted at 5:05pm Tuesday, the National Disaster Mitigation Agency (BNPB) announced, urging residents to "remain calm" and to stay away from areas within 7.5-kilometer radius of the volcano.
However, despite the high volcanic activity, flights in and out of Bali are continuing as usual. "Tourism in Bali is also still safe," the BNPB said while asking tourists to stay away from Mount Agung.
While volcanoes may not have "seasons" as we know them, scientists have started to discern intriguing patterns in their activity.
Eruptions caused by a shortened day
The four seasons are caused by the Earth's axis of rotation tilting toward and away from the sun. But our planet undergoes another, less well-known change, which affects it in a more subtle way, perhaps even volcanically.
Due to factors like the gravitational pull of the sun and moon, the speed at which the Earth rotates constantly changes. Accordingly the length of a day actually varies from year to year. The difference is only in the order of milliseconds. But new research suggests that this seemingly small perturbation could bring about significant changes on our planet - or more accurately, within it.
Comment: Finally, some government-approved scientists have 1.) noticed the increase in volcanic activity, and 2.) connected it with a minute slowdown in planetary rotation.
It needs to be further explained, however, that the 'seasonal' changes to patterns of erupting volcanoes marry with 'seasonal' changes to patterns of other climatological, seismic and cosmic phenomena. There aren't just more volcanoes erupting now. There are more earthquakes now. There is more precipitation now. There is more snow now. There are stronger storms now. There is more methane outgassing now. There is more heat coming up from the oceans now. There are more meteor fireballs now. There are more comets in the solar system now. There are more cosmic rays reaching Earth now.
Etcetera, etcetera.
All of it is inter-related, which is why climatology alone cannot explain what is going on. Only a (truly) multi-disciplinary approach - one that is disinterested in biased assumptions that improve chances of receiving grants - can account for all the observation data.
SOTT.net has been saying for years that a slowdown in the planet's rotation can account for much of what has unfolded in terms of global planetary and climate chaos in the last decade or so. The question is: what is causing the planet's rotation to slow down? It cannot simply be "factors like the gravitational pull of the sun and moon" because the same thing is happening to other planets in the solar system!
© Ágúst J. MagnússonThe new caldera can be seen clearly on this image.
Iceland's volcanoes may be ready to blow
According to the Iceland Met Office this caldera shows increased activity in Öræfajökull which is located in Vatnajökull, Iceland's largest glacier.
A great sulphuric stench has emanated from the river Kvíá last week.
Increased seismic activity has occurred in the area in recent months, activity which has subsided in recent days. The volcano hasn't erupted since 1727. There are still no signs of an imminent eruption states an announcement from the Met Office. However, the safety code has been put up to yellow.
© Emmanuel Flores / AFPA huge plume of smoke rises into the air following the eruption of Mexico's Popocatepetl.
Popocatepetl, meaning 'smoking mountain' in Aztec, erupted three times in the space of 24 hours across Thursday and Friday. The ash, described as "moderate" and "light" by civil protection authorities, fell over the nearby towns of Tétela del Volcán and Ocuituco, according to El Sol de Cuautla.
The stratovolcano, which annexes both Popocatepetl and the dormant volcano Iztaccihuatl, has been emitting ash since the beginning of this month, with explosions detected at various times over the last 10 days, according to the Global Volcanism Program.
Earthquake strike near Mount Agung
The quake's epicenter was in the sea, 11 kilometers east of Karangasem, at a depth of 10 kilometers at 5:54am local time, according to data from the Bali Meteorology, Climatology and Geophysics Agency (BMKG).
The earthquake did not trigger a tsunami warning.
The epicenter was about 12 to 13 kilometers from the summit of Mount Agung, Bali's rumbling volcano that is currently on level III "standby" the second highest alert level for an eruption. Agung has been on standby since Oct. 29 after previously being on level IV "danger" for five weeks.
Popocatepetl Volcano
The National Disaster Prevention Center (Cenapred), which monitors volcanic activity, said some 200 "low-intensity exhalations and three explosions" had taken place starting early Friday and ending early Saturday.
The last eruption, at 6:08 a.m., led to "a slight drop of ash" in the towns of Yecapixtla and Zacualpan, both in central Morelos state.
Located just 60 km south of the capital Mexico City, Popo, as the volcano is commonly known, has been off limits to mountain climbers since the long dormant volcano became active again in 1994.
Its last major eruption was in 1947.
Source: Xinhua
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