Watch indeed, yes. Matthew 24
If Katla goes more ACTIVE I will do a new thread
I see a rise in earthquakes worldwide, not insignificant, but not posted as over 6.0
Strong quakes occuring on Reykjanes Ridge between Iceland and Greenland, undersea volcano.
October 5 - 6, 2011
Iceland volcano Katla appears on the brink of a major eruption.
Katla has the potential to be much stronger and disruptive than the last 2 Icelandic volcanic eruptions that caused chaos across Europe air space, grounding flights and closing airports.
Katla has magma chamber about 10 times the size of neighbouring Skull (Eyjafjallajokull) which erupted in 2010.
A magnitude 4.8 earthquake shook the Katla Volcano at a depth of 3.1 miles.
The epicenter was SW of Grimsey, Iceland
Earthquakes are taking place within the volcano caldera, which is covered by an ice-cap. In July 2011 a short-lived glacial flood burst from it in connection with increased seismicity. Since then, several hundred micro-earthquakes have taken place.
An intense swarm of earthquakes was registered in the Katla caldera.
There are presently no measurable signs that an eruption of Katla is imminent, however, given the heightened levels of seismicity, the situation might change abruptly.
I had noted a marked rise in earthquakes on Katla, as well as elsewhere in Iceland.
I am unsure if anywhere in all Iceland is safe.
October 16, 2011 Earthquake swarms at Askja and Katla volcanoes
TheWeatherSpace.com - Iceland Katla Volcano Eruption feared with deadly Volcanic Ash to airliners.
Signs in the magma chamber are being watched by scientists as earthquakes are on the rise. An eruption is possible at Katla.
Katla has been putting out a lot of magnitude 3 quakes over the last few months, but
a magnitude 4 was recorded this last week, marking the larger quakes taking over.
There are harmonic tremors in El Hierro volcano, Canary Islands.
An eruption *could* send a huge tsunami across the North American east coast.
I have seen warnings of this for years, now this danger has increased. If I recall correctly,
the east coast will have 6 hours warning - if our govt issues a warning, which I doubt.
Deep earthquake continue in El Hierro volcano. But that means a
new magma is coming in from the mantle and is flowing upwards into the volcano.
Hengill volcano Hengill volcano is a man-made earthquake swarm.
The earthquake swarms that have been taking place in Hengill volcano are man made due to Orkuveita Reykjavíkur (OR) pumping down water at the depth of 2500 meters.
OR has been doing this for some time now, but when they started using new drilling holes to pump down water the earthquake swarms started to happen.
Increased water pumping into the bedrock is likely to increase earthquake activity. -Jon Frimann
Large landslide in a valley in north Iceland
October 19, 2011 by Jón Frímann
A large landslide did fall last Friday in a valley called Eyjafjarðarsveit. This is the largest landslide in this area for 17 years, when a smaller landslide did fall from a different mountain in this area. This landslide was large enough to block a small river that is in this area. Next farm to this landslide is about 7 km away from it. They do not tell what direction (north or south) the farm that is closest to this landslide is. The mountain that this landslide did come from is called Torfufell.
Oct 22, 2011 mysteriously my Iceland link is dead, emsc recorded 4.5 quake.
Later the ICELAND site appeared with this note I have not seen before - Whole country - earthquakes during the last 48 hours.
They said they were repairing their website.
Last edited by CJ on Sun Oct 21, 2012 6:52 am; edited 2 times in total
EQs are really heating up all over the world recently - maybe they're not big ones, but rattling all across the board. It's as if the typical tempermental guy who's trying for a long stretch to hold in his anger, but it's not like he can do it forever...
I also found it odd that Yahoo had on its front page news over small earthquakes for consecutive days in SF. Yes it was odd b/c small tremors like 3s and 4s are the norm there. And it also made the top 10 trending the other day.
New earthquake swarm in Katla volcano
October 27, 2011 by Jón Frímann
This earthquake swarm in Katla volcano is not big, the largest earthquakes was M3.2.
No harmonic tremor has followed this earthquake swarm.
This was most likely a small dike intrusion in Katla volcano caldera.
This high earthquake activity in Katla volcano suggests that it is not far away from erupting. But it is impossible to know when a eruption might take place at current time.
Last edited by CJ on Fri Nov 25, 2011 12:17 pm; edited 1 time in total
Katla volcano caldera
November 11, 2011 Friday 11.11.11 Jón Frímann
A new dike intrusion has started in Katla volcano caldera.
Katla activity has increased the past few weeks.
The earthquakes in Katla volcano now are created by magma intrusion into the rock layers.
Last edited by CJ on Fri Nov 25, 2011 12:15 pm; edited 1 time in total
Bogus news story going around about Katla volcano
November 25, 2011 by Jón Frímann
There is a bogus news story about Katla volcano.
The bogus news are that Katla volcano is just few days from erupting.
This is wrong. At the moment there are no signs that Katla volcano is about to erupt.
There is currently a relative quiet in Katla volcano, compared to the activity several weeks ago.
But that activity started after the minor eruption in Katla volcano in July 2011 (this summer).
For the moment, it is all quiet in Katla volcano.
If there are any changes I am sure to write about it here with up to date information on what is going on.
New media hype over Katla volcano
Harmonic tremor pulse in Grímsfjall volcano
December 5, 2011 by Jón Frímann
There have only been seven months since (May 2011) the last eruption in Grímsfjall volcano.
But it seems that Grímsfjall volcano is getting ready for its next eruption.
Even if the last eruption was the largest one for at least 140 years in Grímsfjall volcano.
So far earthquake activity remains low in Grímfjall volcano. But I am not sure if that means anything for the moment.
But there has been in earlier lead up to a eruption a build up of earthquake activity in Grímsfjall volcano.
Today at least two harmonic tremors spikes have been detected by IMO. But this type of harmonic tremor pulse have been detected before in Grímsfjall volcano.
But this time around it seems that the harmonic tremor is stronger then before.
Currently it remains uncertain of there is a glacier flood starting from Grímsvötn lake, as was the case last time this type of harmonic tremor pulse was detected in Grímsfjall volcano.
Unexplained Melting at the Askja Crater Lake in Iceland April 6, 2012
If you ever frequent Jon Frímann’s blog, you know that he tends to find all the news about potential Icelandic rumblings before pretty much everyone. Well, he seems to have found something interesting going on up in Iceland – a few news reports (in Icelandic) have been talking about the crater lake on Askja caldera having mysteriously become ice-free over the last month while lakes around it (that aren’t on volcanoes) and at lower elevations are still ice-covered – not to mention that normally the lake isn’t ice-free until June or July. This has lead to a lot of speculation about what exactly is going on at Askja, but thanks to its remote location almost in the middle of Iceland, few people have been out there to see what is going on.
A little background on the volcano. Askja is a very complex volcano made up of three calderas. The volcano has mostly erupted basaltic material over its recent history, but it has also had a rhyolitic eruption over 10,000 years ago. Now, usually at a basaltic volcano, the calderas are formed by passive sinking of the land surface, much like we see in Hawai’i. However, at Askja, it appears that the calderas are formed more violently due to explosive eruptions out of the ring fractures bounding the calderas. The youngest caldera formed only 137 years ago (in 1875) and the ~4.5 km diameter feature is home to two crater lakes, Öskjuvatn and Víti. The former is the larger lake, over 200 meters deep, while the latter is a very small, warm crater lake (marked in the photo above near the word “ash?”).
Iceland volcano: and you thought the last eruption was bad
April 10, 2012 London Telegraph
On the second anniversary of the ash cloud that grounded Europe’s flights, Iceland is facing further volcanic havoc, warns Andy Hooper.
This month marks the second anniversary of the eruption of Eyjafjallajökull that left millions stranded across Europe, and cost airlines an estimated €150 million a day for six days. But alarmingly, there are signs of high activity beneath the much larger, neighbouring Katla caldera in Iceland – a possible sign of an impending eruption. This should prompt extensive high-level contingency planning across Europe, as Katla has the potential to be much more damaging than Eyjafjallajökull.
Since Iceland was settled in the ninth century, Katla has erupted on average every 60 years, but has not had a significant eruption since 1918. Ominously, eruptions of Eyjafjallajökull in 1821-23 and 1612 were followed within months by eruptions of Katla. Judged by the historical calendar, an eruption is overdue.
Last July, a flood of water burst from beneath the ice cap on top of Katla, washing away a bridge. This indicates that an extra pulse of heat reached the base of the ice. Since then, there have been erratic movements of the surface of the volcano, measured by precise GPS instruments, and bursts of high earthquake activity beneath Katla’s caldera. These observations imply that magma has risen to shallower depths.
Northern Iceland shaken by moderate earthquakes and tremors
October 21, 2012
A 4.8 and 5.7 earthquake struck north of Iceland near Siglufjörður, which is home to a thriving community built along the inner coastline. The quakes struck along the northern end of the divergent rift or Mid-Atlantic Ridge that runs through the center of Iceland. The quakes ignited a swarm of hundreds of tremors. A series of 3.0+ magnitude tremors have also occurred in the vicinity of the Krafla volcano, which last erupted in 1985. The Krafla central volcano, located NE of Myvatn Lake, is a topographically indistinct 10-km-wide caldera that is cut by a N-S-trending fissure system. Eruption of a rhyolitic welded tuff about 100,000 years ago was associated with formation of the caldera. Krafla has been the source of many rifting and eruptive events during the Holocene, including two in historical time, during 1724-29 and 1975-84
ICELAND - Heavy earthquake activity in TFZ October 21, 2012 by Jón Frímann
One earthquake has at least reached the magnitude 5.0 and more earthquake with that magnitude is currently taking place on TFZ.
12.12.2012 | 22:00
Fifteen Hundred Earthquakes in November
A total of 1,500 earthquakes hit in Iceland last month. According to data from the Icelandic Met Office, the most seismic activity—or a total of 750 earthquakes—occurred in Eyjafjörður, which was also the location of the strongest earthquake, of a magnitude 3.8, mbl.is reports.
In late November, a minor glacial outburst flood was reported in Grímsvötn volcano in Vatnajökull glacier. GPS data shows that the ice level had decreased, a strong indication that a flood had started. The flood reached its peak on November 26.
A glacial outburst isn’t necessarily an indication of an upcoming eruption.
04.04.2013 | 12:10
Over 70 Earthquakes Hit North Iceland Last Night
Approximately 70 earthquakes were picked up by the automatic sensors of the Icelandic Met Office in the Grímsey Island seismic belt in North Iceland from midnight yesterday and until the morning. The activity started with a 5.5 quake on April 2. Some of last night’s quakes were of a magnitude higher than three but none measured above four points, ruv.is reports. Yesterday, around 70 earthquakes were registered from noon and until the evening, five of which were above three in magnitude. The quakes could be felt on Grímsey but not on the mainland.
Seismologists are paying close attention to the epicenter of the earthquakes at Skjálfandadjúp. So far, there are no indications that the activity is spreading to other fracture zones and the condition was stable yesterday. A level of uncertainty was declared in North Iceland following the 5.5 earthquake and the region’s residents were asked to inform themselves on how to react in case of a major earthquake.
Earthquake Swarm Rattles North Iceland
Becky Oskin, OurAmazingPlanet Staff Writer
Date: 05 April 2013 Time: 09:27 AM ET
An earthquake swarm continues to shake North Iceland, home to one of the world's largest and most active series of volcanoes. More than 800 quakes have rattled island residents, a number that's probably already out-of-date. About 40 to 60 earthquakes hit every hour on April 2 and 3, according to the Iceland Geology Blog. Some smaller quakes preceded the biggest event, a magnitude 5.5 shaker that struck offshore Grimsey Island on April 2. The latest swarm moved about 9 to 12 miles (15 to 20 kilometers) south of the biggest temblor, said Iceland's Meteorological Office. Another large quake, a magnitude 4.7, struck early this morning (April 4) in this southerly spot.
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