General Volcanic Activity Thread!

[karyo]

Video of the Calbuco Volcano eruption in southern Chile

…

Wow, this is major!

[Gael_Force]

Stunning colours in the ash plume just now. From twitter.

 

 

https://twitter.com/AQUASocial/status/591007119685640192

 

Other pics here ....   https://twitter.com/hashtag/volc%C3%A1nCalbuco?src=hash

[Yarmy]

 

[Dancerwithwings]

 

Makes the volcanic activity at Bárðarbunga (Iceland) looks like just a 'zit'....Calbuco Volcano eruption is mind blowing!!!

The amount of lava being ejected is incredible going by that You Tube video.

[knocker]

Gravity Waves Associated with a Volcanic Eruption

[Daniel*]

Spectacular eruption! To see in first person would be amazing.

Edited April 23, 2015 by Daniel*

[karyo]

Spectacular eruption! To see in first person would be amazing.

I wish Calbuco volcano was closer to the equator.

[Mokidugway]

I wish Calbuco volcano was closer to the equator.

cos you want a volcanic winter ,no pinatubo for you boyo !!!.but you might get a boom !!!

[The PIT]

The Lava lake at Kilauea has risen enough now to start over flowing at times. http://hvo.wr.usgs.gov/activity/kilaueastatus.php Interesting despite the flank eruption and activity at the summit the volcano is still inflating. Mauna Loa is still inflating as well.

 

Three Volcano's in Alaska are on yellow alert SEMISOPOCHNOI,  Cleveland and SHISHALDIN

 

In Iceland Bárðarbunga has been dropped to level three due no signs of re-charging of magma chamber.

Edited May 9, 2015 by The PIT

[The PIT]

Etna busy tonight http://webcams.volcanodiscovery.com/Etna

[Snowyowl9]

New Giant Volcano Below Sea Is Largest in the World.

http://news.nationalgeographic.com/news/2013/09/130905-tamu-massif-shatsky-rise-largest-volcano-oceanography-science/

“It is in the same league as Olympus Mons on Mars, which had been considered to be the largest volcano in the solar system,†Sager told National Geographic.

[saharmohamedali]

Well as everything goes quiet in Iceland mount Cleveland is waking up http://newsminer.com...ow_left_bullets Today it wasn't doing much but two days ago things were more interesting Thermal anomalies observed in satellite data over the past few days suggest that Cleveland Volcano has entered another period of volcanic unrest. In the past, the presence of thermal anomalies at the summit has been followed by moderate ash bursts, sometimes to aircraft flight levels. Therefore, AVO is raising the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Unrest at Cleveland is frequent, and short-lived explosions with ash clouds or plumes that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery. Other matters Kilauea reached 10,000 days of eruption on the 22nd and is still chugging away. It worth looking at the table seeing how big this eruption is http://hvo.wr.usgs.g...torytable.html. There's no sign of it stopping any day soon either. 

[keithlucky]

The number of volcanoes  is greater than what has ever recorded in the 20th century and could have a dramatic effect on our climate a new study finds.http://www.sott.net/article/295388-The-number-of-volcanoes-erupting-right-now-is-greater-than-the-20th-centurys-YEARLY-average

[Methuselah]

Or, what it really says: there are more volcanoes than the 20th Century mean...?

[Yarmy]

Or, what it really says: there are more volcanoes than the 20th Century mean...?

 

And that may not even be true. The link to the source is here:

 

http://healthintelligence.drupalgardens.com/content/volcanic-activity-within-last-10000-years

 

 

It says (under the first bar chart) "Human knowledge, scientific discoveries and technology development has allowed us to better observe and measure eruptions. That is the main reason for the increase of eruption frequency in the last centuries."

 

In other words, there aren't necessarily more eruptions; we are just better at finding them.

[jonboy]

And that may not even be true. The link to the source is here:

 

http://healthintelligence.drupalgardens.com/content/volcanic-activity-within-last-10000-years

 

 

It says (under the first bar chart) "Human knowledge, scientific discoveries and technology development has allowed us to better observe and measure eruptions. That is the main reason for the increase of eruption frequency in the last centuries."

 

In other words, there aren't necessarily more eruptions; we are just better at finding them.

 

The original article posted only talked about the 20th century not centuries. On average during the 20th century there where 35 volcanic eruptions per year there was 36 by the 16th April this year and appears to be on course to beat 2013 which saw over 80. The present trend is upward and it would be real interesting to understand why this may be the case given how much CO2 etc is ejected during these eruptions. Equally it appears only a matter of time before we have a really big one. 

Edited August 6, 2015 by jonboy

[karyo]

The original article posted only talked about the 20th century not centuries. On average during the 20th century there where 35 volcanic eruptions per year there was 36 by the 16th April this year and appears to be on course to beat 2013 which saw over 80. The present trend is upward and it would be real interesting to understand why this may be the case given how much CO2 etc is ejected during these eruptions. Equally it appears only a matter of time before we have a really big one. 

What is more important is the size of the eruptions (in particular how much SO2 is emitted rather than the number of them.

For example Etna is erupting several times a year but the eruptions are small and can't be compared to the Pinatumbo or Santorini eruptions.

[The PIT]

And that may not even be true. The link to the source is here:

 

http://healthintelligence.drupalgardens.com/content/volcanic-activity-within-last-10000-years

 

 

It says (under the first bar chart) "Human knowledge, scientific discoveries and technology development has allowed us to better observe and measure eruptions. That is the main reason for the increase of eruption frequency in the last centuries."

 

In other words, there aren't necessarily more eruptions; we are just better at finding them.

Which sums it up rather well. There will also be a natural variation with some centuries being more active than others.

[Gael_Force]

Way back in this thread when we were reading about the Icelandic eruption, the volcanologists were talking about a due period of increased activity. What that was based on I have no idea but with their history they should be well placed to see if there is a periodicity in the geologic record.

[jonboy]

One theory is that as you see a slow down in solar activity especially if it is a deep minimum then you see an uptick in volcanic activity. Could be an interesting next 5/10 years.

[Methuselah]

One theory is that as you see a slow down in solar activity especially if it is a deep minimum then you see an uptick in volcanic activity. Could be an interesting next 5/10 years.

And what, pray, would be driving this 'uptick in volcanic activity'? TBH, the whole idea sounds like something David Icke might invent... 

[jonboy]

And what, pray, would be driving this 'uptick in volcanic activity'? TBH, the whole idea sounds like something David Icke might invent... 

Here are a few of the David Icke's

Correlation of Solar Activity Minimums and Large Magnitude Geophysical Events: John L. Casey, Space and Science Research Center,  March 2010

Ivanka Charvatova, Institut of Geophysics of AS CR, BoÄni II, 141 31 Praha 4, Czech Republic: Long-term relations between the solar inertial motion (SIM) and solar, geomagnetic, volcanic activities and climate  

ToshikazuEbiska, Hiroko Miyahara, Tatsuhiko Sato, Yasuhiro Ishimine: Explosive volcanic eruptions triggered by cosmic rays: Volcano as a bubble chamber- – Godwana Research, November 2010

Not to sure they would like to be compared to David though!!!!

[Gray-Wolf]

http://www.cbc.ca/news/world/ecuador-declares-state-of-emergency-over-cotopaxi-volcano-activity-1.3192674?cmp=rss

 

Ecuador declares a state of emergency as Cotopaxi starts to erupt. 

[The PIT]

Looking like Mauna Loa maybe twitching a bit more strongly. http://www.volcanodiscovery.com/maunaloa/news.html

[Mokidugway]

One theory is that as you see a slow down in solar activity especially if it is a deep minimum then you see an uptick in volcanic activity. Could be an interesting next 5/10 years.

can't see how a slowdown in solar activity would effect volcanism on earth without some increase in gravitational forces from the sun ??.