President of Iceland & Scientists Warn about Volcano Katla

[Vibrant62]

Re: President of Iceland & Scientists Warn about Volcano Katla

either low level clouds form and disperse with incredible speed (quite possible at high altitudes) and in precisely the same spot (might be possible), or its smoke. I hope TPTB have used the other eruption as a prompt to work out contingency plans, just in case.

Katla sends up large eruptions.

 

[mixin]

Re: President of Iceland & Scientists Warn about Volcano Katla

I've been watching Katla for a few days and today is the first time I've seen this smoke (or whatever it is). However, if it is something unusual, it seems there would be something in the news by now.

If this was a Google over my house, it would likely be a huge smoke plume from my neighbors burning leaves, limbs, garbage, trash.. etc

 

[gsgs]

Re: President of Iceland & Scientists Warn about Volcano Katla

that shall be Katla ??
but Katla is under a big glacier

 

[mixin]

Re: President of Iceland & Scientists Warn about Volcano Katla

The small box on the right has a little red dot showing the location of the webcam.

Here's a translation of info below the picture:

RUV monitoring of Katla in cooperation with the NCIP and Almannavarnadeild miles.

H?fell is about 9 km east of Vik in M?rdal, just above the road and is almost 300 m high. Top of the mountain is a temple and tower owned distribution network R?V. A few years ago was placed cameras to monitor the Katla volcano in the eastern slopes of measurements in about 23 km away and can see very well from H?felli.
Jar?v?sindamenn think not pass long before the eruption of Katla. Her time has come, so to speak. Where eruption breaks out before the glacier, but no one knows J?kulhlaup accompanying Katla Gosum can fall either downward M?rdalssand, S?lheima Sand, or Emstrur down on Markarflj?t faeces.
Katla erupted last frostaveturinn great, 1918, 12 October Katla Gosum usually accompanied by high ash fall.
You may see photos from the camera H?felli the first to be achieved by the eruption when it is and could give clues about where J?kulhlaup will drop. Weather, visibility and brightness control, however, probably much of the good photos are available of the eruption. Safety Committee RUV was for setting up the camera on H?felli in cooperation with the Civil and Miles who makes an Internet connection to your system.

 

[Vibrant62]

Re: President of Iceland & Scientists Warn about Volcano Katla

It is now the small hours of the morning, and I thought that if there was activity, there may be a glow from magma. The Katla webcam is showing an area that is glowing white... I think that must signal volcanic activity. I cant think of any other hypothesis to explain this, but maybe someone else can...

If its anything significant I think we will find out soon enough.

Footnote: the glow does seem to come and go, so whatever the activity is, its intermmittent

 

[Sally Furniss]

Re: President of Iceland & Scientists Warn about Volcano Katla

The white smoke appears to be steam. Not uncommon for geothermal areas.

 

[tropical]

Re: President of Iceland & Scientists Warn about Volcano Katla

steam on Katla means activity (grassrootly)

compared to previous inactivity ...


or there are news smoothering about ...,
or for the volcanologists that steam means nothing ...

___

Google search: "what means appearance of steam on an inactive volcano?"


http://www.volcano.si.edu/world/tpgallery.cfm?category=Stratovolcanoes

Global Volcanism Program | Volcanoes of the World
"A steam plume blows from the summit of Mexico's Colima volcano in this 1992 view ...

Colima

A steam plume blows from the summit of Mexico's Colima volcano in this 1992 view from the WSW with snow-capped Nevado de Colima to the left. Colima, also known as Fuego de Colima, is one of North America's most active volcanoes. Frequent eruptions have been recorded since the 16th century. A complex succession of eruptions that has been dominated during the past century by lava effusion associated with lava dome growth has also produced explosive eruptions of varying magnitude and frequent pyroclastic flows.
Photo by Jim Luhr, 1992 (Smithsonian Institution)."

(isn't the calumet pipe trail similar ...)


http://www.answers.com/topic/volcano

volcano: Definition from Answers.com
"Gas and steam emissions can also indicate an impending volcanic eruption. ....."

excerpts:
"Fumaroles and hot springsVents at which volcanic gases issue without lava or after the eruption are known as fumaroles. They are found on active volcanoes during and between eruptions and on dormant volcanoes, persisting long after the volcano itself has become inactive. Fumaroles grade into hot springs and geysers. The water of most, if not all, hot springs is predominantly of meteoric origin, and is not water liberated from magma. Some hot springs are of volcanic origin and the water may contain volcanic gases. See also Geyser.
...
Most scientists consider a volcano active if it has erupted in holocene times. Historic times is another timeframe for active.
...
The Smithsonian Global Volcanism Program's definition of active is having erupted within the last 10,000 years (the 'holocene' period).
...
More recently, the long-dormant Soufrière Hills volcano on the island of Montserrat was thought to be extinct before activity resumed in 1995. Another recent example is Fourpeaked Mountain in Alaska, which, prior to its eruption in September 2006, had not erupted since before 8000 BC and was long thought to be extinct.
...
There are many different types of volcanic eruptions and associated activity: phreatic eruptions (steam-generated eruptions), ...
...
Water vapor is typically the most abundant volcanic gas, followed by carbon dioxide and sulfur dioxide.
...
As the aerosols grow and coagulate, they settle down into the upper troposphere where they serve as nuclei for cirrus clouds and further modify the Earth's radiation balance.
..."

 

[Sally Furniss]

Re: President of Iceland & Scientists Warn about Volcano Katla

Image of Katla under Myrdalsjökull icecap http://www.skimountaineer.com/ROF/WebCams/katlacam.jpg

http://www.skimountaineer.com/ROF/VolcanoWebCams.php?weather=true
Nice view looking NW towards Katla and the Myrdalsjökull
icefield from atop the hill Hafell, 15 miles to the SE; the
subglacial Katla is the second most active volcano in Iceland;
this camera has no still image online, it provides only video
consisting of multiple images with 2 frames per second;
it is sometimes aimed in other directions, and in very clear
weather has a distant view of Öræfajökull, 80 miles ENE

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

More steam

http://www.ruv.is/katla/

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

Earthquake location 21 May 14:25 GMT

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

Katla Volcano Update 21 May 2010 (Blog)



<!--Widget Area: [Content Item] Above ~~~ --><!--Widget Area: [Content Item] Left ~~~ --><!--Widget Area: [Content Item] Right ~~~ --><!--The content itself ~~~ --><HR class=translate_hr>



The earthquakes at the Katla volcano site appear to possibly be increasing in frequency as of this moment (time will tell however). Since May 17 there have been four earthquakes at or very near Katla, while a 5th just on the edge of the Myrdalsjokull glacier.

Although 4 or 5 earthquakes at the volcano site in 4 days does not indicate a drastic change in pattern, the interesting notation at the moment is the fact that the two most recent earthquakes occurred within 3 hours of each other on 21 May, 2010, at depths of 5km and 13km. That in itself is an increase in occurrence. It may be an anomaly, but it justifies keeping one eye on Katla, the big sister of Eyjafjallajokull.

What do these volcanic earthquakes tell us about what is going on at the Katla volcano?

One type of volcanic earthquake may indicate that changes are occurring due to magma moving in to an area of the rock which changes the pressure around it. At some point, the rock will break or move. If this type of earthquake becomes frequent, and a lot of earthquakes begin occurring or swarming (Earthquake swarms are when we suddenly start seeing clusters of earthquakes in the same general area over a relatively short period of time), it may be a precursor warning that an eruption is about to happen.

What we are seeing at Katla, in my opinion is NOT cause for immediate alarm, but it is noteworthy to observe this recent activity and to stay up to date with what is happening there.

There is something going on beneath the ice.

http://modernsurvivalblog.com/natural-disasters/katla-volcano-update-21-may-2010/

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

<TABLE cellSpacing=3 cellPadding=3 width=996 border=0><TBODY><TR><TD vAlign=center colSpan=4><TABLE cellSpacing=0 cellPadding=0 width="100%" align=left border=0><TBODY><TR><TD align=middle>

</TD><TD><BIG>RSOE Emergency and Disaster Information Service</BIG></B>
Budapest, Hungary

</TD></TR></TBODY></TABLE></B>

Volcano Activity - Europe





</TD></TR><TR><TD class=loc_hdr colSpan=4>Event summary</TD></TR><TR><TD>EDIS Number</TD><TD>VA-20100523-26227-ISL</TD><TD></TD><TD></TD></TR><TR class=line_hilite><TD>Event type</TD><TD>Volcano Activity</TD><TD>Date / time [UTC]</TD><TD>23/05/2010 - 03:42:50</TD></TR><TR><TD>Country</TD><TD>Iceland</TD><TD>Area</TD><TD>Volcano Katla</TD></TR><TR class=line_hilite><TD>County / State</TD><TD>-</TD><TD>City</TD><TD>-</TD></TR><TR><TD>Cause of event</TD><TD>Unknown</TD><TD>Log date [UTC]</TD><TD>23/05/2010 - 03:42:50</TD></TR><TR class=line_hilite><TD>Damage level</TD><TD>Not or Not data

</TD><TD>Time left</TD><TD>- </TD></TR><TR><TD>Latitude:</TD><TD>N 63? 37.800</TD><TD>Longitude:</TD><TD>W 19? 3.000</TD></TR><TR class=line_hilite><TD>Number of deads:</TD><TD>Not or Not data</TD><TD>Number of injured persons:</TD><TD>Not or Not data</TD></TR><TR><TD>Number of missing persons:</TD><TD>Not or Not data</TD><TD>Number of infected persons</TD><TD>-</TD></TR><TR><TD>Number of evacuated persons:</TD><TD>Not or Not data</TD><TD>Population</TD><TD>No data!</TD></TR></TBODY></TABLE>

http://hisz.rsoe.hu/alertmap/woalert_read.php?cid=26227

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

<TABLE cellSpacing=0 border=0><CAPTION>Mýrdalsjökull - earthquakes during the last 48 hours

Earthquake table


</CAPTION><TBODY><TR><TH>Date</TH><TH>Time</TH><TH>Latitude</TH><TH>Longitude</TH><TH>Depth</TH><TH>Magnitude</TH><TH>Quality</TH><TH>Location</TH></TR><TR><TD>Monday
24.05.2010


</TD><TD>06:09:30</TD><TD>63.627</TD><TD>-19.208</TD><TD>0.7 km</TD><TD>1.2</TD><TD>99.0</TD><TD>2.5 km SE of Goðabunga</TD></TR></TBODY></TABLE>


http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=table

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

<TABLE cellSpacing=0 border=0><CAPTION>Earthquake table</CAPTION><TBODY><TR><TH>Date/</TH><TH>Time/</TH><TH>Latitude</TH><TH>Longitude/</TH><TH>Depth/</TH><TH>Magnitude/</TH><TH>Quality/</TH><TH>Location</TH></TR></TBODY></TABLE>


Tuesday
25.05.2010/ 03:36:51/ 63.634 -19.259 /4.8 km /0.8 /99.0 /0.8 km SW of Go?abunga


http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=table

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

<TABLE cellSpacing=0 border=0><CAPTION>Earthquake table</CAPTION><TBODY><TR><TH>Date</TH><TH>Time</TH><TH>Latitude</TH><TH>Longitude</TH><TH>Depth</TH><TH>Magnitude</TH><TH>Quality</TH><TH>Location</TH></TR><TR><TD>Wednesday
26.05.2010
</TD><TD>08:43:21</TD><TD>63.673</TD><TD>-19.128</TD><TD>2.1 km</TD><TD>0.7</TD><TD>99.0</TD><TD>7.1 km ENE of Go?abunga</TD></TR></TBODY></TABLE>


http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=table

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

Katla Volcano In Iceland Shows Signs Of Increased Activity

National & World - National & International News
Wednesday, 26 May 2010 13:49
Written by Mark Dunphy






Fears are growing that the Katla volcano in Iceland could soon erupt after volcanic activity at the site increased by over 200% in recent days.


Seismic readings of the volcano indicate the tremors around the area have increased substantially.

Four earthquakes were detected near Katla during a 12-hour period on May 21st, more than at any other time since the Eyjafjallajokull volcanic eruptions first occurred in March.

Three earthquakes at the Katla Volcano were reported by the Disaster and Emergency website Hisz.rsoe.hu on Sunday evening. The tremors may have been due to ice movements within M?rdalsj?kull glacier or magma movement under the volcano.

The last earthquake to take place at the volcano was recorded this morning.

The eruption of the long-dormant Eyjafjallaj?kull volcano has prompted fears among some geophysicists that it might trigger an eruption at the larger and more dangerous Katla. In the past 1,000 years, all three known eruptions of Eyjafjallaj?kull have triggered subsequent Katla eruptions. The last large eruption at Katla was in 1918 but there have been small eruptions at Katla as recently as 1955.

An eruption of Katla volcano has the potential to be more devastating than the current eruption of Eyjafjallajokull. Geophysicists at Iceland?s Institute of Earth Sciences say Katla would be locally and globally damaging.

Icelandic President ?lafur Gr?msson has warned Governments around Europe that a significant eruption at the volcano is ?coming close?. He said: "We [Iceland] have prepared ... it is high time for European governments and airline authorities all over Europe and the world to start planning for the eventual Katla eruption".

Live Katla webcam - Earthquake link



Katla



Also earlier video from CNN here:

http://www.clareherald.com/national...celand-shows-signs-of-increased-activity.html

 

[mixin]

Re: President of Iceland & Scientists Warn about Volcano Katla

If there is any member who understands these tremor graphs, it would be very much appreciated if you could give us a brief explanation. This is what the site publishes

The graphs show average vertical movement per minute for each seismometer, in three frequency ranges (Hz).The vertical axis has the same scale for each station. The main purpose of these graphs is to monitor changes in intensity of seismic wave motion. The absolute value of the scale has no meaning. ... Earthquakes appear as spikes on the graphs.

Here is one of the latest tremor graphs near Katla and the earthquake graph. I wonder if the green spike today is either the blue or orange dot on the earthquake graph?

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

Second Iceland volcano 'could erupt' in near future

(AFP) ? 4 hours ago

LONDON ? An Icelandic volcano neighbouring Eyjafjoell, whose eruptions paralysed Europe's skies last month, could come to life in the near future, according to experts.

"An eruption in the short term is a strong possibility," experts said, referring to Katla, which is larger and fiercer than Eyjafjoell, in a report from the University College London (UCL) institute for risk and disaster reduction.

The researchers also cautioned that Europe's skies were likely to be hit by further ash cloud shutdowns, following April's widespread closures and several smaller scale shutdowns since.

The report warned that "future moderately to highly explosive Icelandic eruptions combined with appropriate weather conditions are highly likely to cause a repeat of the recent air transport disruption."

The Eyjafjoell volcano began erupting on April 14, and spewed out an ash cloud that drifted over Europe and led to massive flight disruption throughout the continent for several days.

It caused the biggest airspace shutdown in Europe since World War II, affecting more than 100,000 flights and eight million passengers.

The UCL experts -- encompassing scientists, engineers and statisticians also criticised the response to the eruption.

"The severe disruption to European airspace in April from (the volcano's) ash clouds reflect a lack of integration between the monitoring, warning and risk management systems," said Carina Fearnley, of UCL's hazard research centre.

In a second report released Thursday, a team of British researchers said they had discovered a significant electrical charge in the ash plume.

The scientists, from the Institute of Physics, said they found that "the ash plume which hovered over Scotland carried a significant and self-renewing electric charge."

They warned that the charge could pose a risk to both planes and passengers.

"Charged particles can cause aircraft radio interference and, if introduced into aircraft cabins, charged ash may present an electrostatic hazard to occupants or aircraft systems," said the report.

The scientists used a specialist weather balloon to conduct research on a section of the ash cloud floating over Scotland.

http://www.google.com/hostednews/afp/article/ALeqM5hh92_T4HOKqSAkl6bOWD3kqa7v_w

 

[Pathfinder]

Re: President of Iceland & Scientists Warn about Volcano Katla

http://hraun.vedur.is/ja/oroi/snb.gif

http://hraun.vedur.is/ja/englishweb/tremor.html

 

[Vibrant62]

Re: President of Iceland & Scientists Warn about Volcano Katla

That last section looks like a marked increase in tremor activity - can we draw any conclusions from this?