: Iceland Katla -Activity April 2012 -

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Iceland Katla -Activity April 2012

#21 User is offline   Martyn Wells 

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Posted 15 May 2012 - 15:53

Askja complex now up to 98 quakes in the last 24 hours...

Here's another view of them vertically:

http://www.ijsland-e...ueel_beving.asp
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#22 User is offline   ldavidcooke 

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Posted 18 May 2012 - 11:28

Hey All,

Here are two links we have used fairly consistently wrt Icelands seismic activity in the threads here. (We may want to consider setting up a sticky thread so we can post our geology references, your opinions?)

Katla area: http://en.vedur.is/e.../myrdalsjokull/
Iceland Sesmic Stations: http://hraun.vedur.i.../myrjokull.html
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#23 User is offline   scrapemedic 

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Posted 07 June 2012 - 12:37

Interesting bunch of EQs at katla in the last 36 hours, and tremor measures to match.
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#24 User is offline   Martyn Wells 

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Posted 07 June 2012 - 17:50

Continuing EQs and tremor. Lordy frequency tremor is normally mags or jokhallup related. Possible glacial flood is guess given lack of any weather interference on instrumentation.
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#25 User is offline   scrapemedic 

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Posted 12 June 2012 - 00:07

Attached Image: katla 11th june 2012.JPG
And another really nice swarm yesterday.
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#26 User is online   Sam Jowett 

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Posted 22 June 2012 - 20:06

Seems to be an ongoing swarm in Katla again... was it as active as this before Eyjaf erupted?
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#27 User is offline   Martyn Wells 

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Posted 22 June 2012 - 20:33

No tremor, all small quakes, occurred afternoon...melting/isostatic rebound?
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#28 User is offline   scrapemedic 

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Posted 23 June 2012 - 01:05

The last two days Martyn, most of the quakes occured between midnight and 12, not the afternoon.
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#29 User is offline   Martyn Wells 

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Posted 23 June 2012 - 08:00

Ah well then this is interesting....
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#30 User is online   Sam Jowett 

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Posted 23 June 2012 - 08:43

Sounds like there's some hydrothermal activity going on which has caused some insignificant glacial floods over the last few weeks, indicated by higher water conductivity etc. Seems there's something going on just beneath the surface, but that doesn't mean anything of note will occur on the surface of course...
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#31 User is offline   scrapemedic 

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Posted 08 July 2012 - 21:00

Another EQ swarm today, with some corresponding tremor measurement changes at the GOD station.
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#32 User is offline   ldavidcooke 

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Posted 09 July 2012 - 00:30

Hey Liz,

I think it is interesting that the indications appear to track the Sun with a few hours delay. I think Martyn may have the jist of it when he suggests it is likely a surface event or settling. It is interesting to note that these events appear to track air temperature extremes. If it were a indication of a deep core or magma event the amplitude markers would likely be closer together.
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#33 User is offline   Martyn Wells 

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Posted 09 July 2012 - 10:21

Not sure the GOD tremor was that significant, ande can't see anything on any other stations in the Katla locale. http://hraun.vedur.is/ja/oroi/god.gif

It's a blamy and wet 14c over Katla today; so could be summer melt and isostatic rebound? Unless there is a change to hydrostatic readings in the river run off I guess we'll never know one way or another.

Elsewhere, El Hierro continues to shake with over 2,000 quakes recorded since the swarm began on 24 June. All quakes deep and down in the MOHO mush at 18-22km, from the lighthouse at the western extremity of El Hierro across ESE into Las Calmas sea. There is no sign of magma on the move nearer the surface in tremor plots, no reports of gas emissions on land and no reports bar a false alarm, of vent based submarine de-gassing).
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#34 User is offline   Martyn Wells 

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Posted 09 July 2012 - 10:43

volcano Live! starts tonight on BBC at 21:00 http://www.bbc.co.uk...onment-18705562
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#35 User is offline   PK2 

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Posted 09 July 2012 - 19:00

View PostMartyn Wells, on 09 July 2012 - 10:43, said:

volcano Live! starts tonight on BBC at 21:00 http://www.bbc.co.uk...onment-18705562

thanks Martyn, will be recording it. Worth mentioning that, here at least, it starts a 20:00.
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#36 User is offline   Dave W 

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Posted 09 July 2012 - 19:02

Volcano live now on BBC
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#37 User is offline   skanky 

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Posted 10 July 2012 - 13:18

View PostDave W, on 09 July 2012 - 19:02, said:

Volcano live now on BBC


Missed it. Worth catching tonight and/or on iPlayer?
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#38 User is offline   scrapemedic 

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Posted 10 July 2012 - 13:57

View Postskanky, on 10 July 2012 - 13:18, said:

Missed it. Worth catching tonight and/or on iPlayer?

Yes, if only for Ed Byrne creating volcanoes with diet coke and Mentos.
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#39 User is offline   skanky 

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Posted 10 July 2012 - 14:59

View Postscrapemedic, on 10 July 2012 - 13:57, said:

Yes, if only for Ed Byrne creating volcanoes with diet coke and Mentos.


We were making a volcano out of vinegar and bicarbonate of soda last Sunday. :D
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#40 User is offline   scrapemedic 

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Posted 17 August 2012 - 16:34

Date Time Latitude Longitude Depth Magnitude Quality Location
Friday
17.08.2012 16:12:28 63.666 -19.139 1.1 km 0.7 74.97 6.2 km ENE of Goðabunga
Friday
17.08.2012 15:55:16 63.637 -19.302 1.1 km 0.1 48.85 2.6 km W of Goðabunga
Friday
17.08.2012 15:48:14 63.660 -19.076 0.1 km 3.8 99.0 8.9 km ENE of Goðabunga
Friday
17.08.2012 15:39:51 63.658 -19.111 3.0 km 1.1 90.01 7.1 km ENE of Goðabunga
Friday
17.08.2012 12:46:33 63.619 -19.089 0.8 km 0.8 90.02 4.4 km N of Hábunga
Friday
17.08.2012 12:37:19 63.651 -19.115 1.1 km 2.0 90.06 6.8 km E of Goðabunga
Friday
17.08.2012 12:16:55 63.653 -19.112 1.1 km 1.0 90.01 7.0 km ENE of Goðabunga
Friday
17.08.2012 11:25:32 63.642 -19.337 1.1 km 1.3 90.01 4.3 km W of Goðabunga
Friday
17.08.2012 08:23:28 64.000 -19.131 1.1 km 2.3 90.05 3.6 km WNW of Landmannalaugar
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