Volcano watch 2010

Raised eyebrow alert. Mt Tarawera, New Zealand

Don't know if this has any relationsip to the Philippines/Fiji Deep quakes lately, but it has been pretty quiet under this volcano for a long while.
Definitely volcanic (not tectonic) in origin, just check the depths.

22 quake swarm at Mt. Tarwera/Okataina Volcano last night.

REF,LAT, LONG, DATE/TIME UTC, DEPTH, MAGNITUDE ML
3344368, -38.15745, 176.42648, 2010/7/24 4:18:37, 0, 2.538
3344378, -38.07103, 176.52798, 2010/7/24 4:47:31, 10, 2.335
3344387, -38.13265, 176.48657, 2010/7/24 5:10:52, 4, 2.758
3344400, -38.12833, 176.47604, 2010/7/24 5:38:52, 4, 2.112
3344405, -38.10339, 176.41908, 2010/7/24 5:51:50, 5, 2.348
3344409, -38.13679, 176.45316, 2010/7/24 5:59:33, 5, 1.832
3344410, -38.16638, 176.41478, 2010/7/24 6:1:16, 0, 1.898
3344414, -38.14753, 176.42143, 2010/7/24 6:9:49, 0, 2.798
3344416, -38.15747, 176.42912, 2010/7/24 6:15:5, 0, 2.326
3344418, -38.30458, 176.30066, 2010/7/24 6:18:33, 5, 1.941
3344428, -38.13134, 176.48671, 2010/7/24 6:38:34, 4, 2.281
3344433, -38.13679, 176.53227, 2010/7/24 6:51:38, 0, 2.524
3344434, -38.15676, 176.42847, 2010/7/24 6:54:43, 0, 1.779
3344444, -38.14668, 176.43973, 2010/7/24 7:17:3, 3, 1.26
3344445, -38.15165, 176.40613, 2010/7/24 7:20:12, 1, 1.656
3344446, -38.12308, 176.47493, 2010/7/24 7:23:54, 4, 2.081
3344450, -38.12133, 176.47269, 2010/7/24 7:28:47, 5, 1.878
3344452, -38.13005, 176.48242, 2010/7/24 7:32:40, 5, 2.589
3344467, -38.13332, 176.47977, 2010/7/24 8:6:37, 4, 2.362
3344471, -38.8086, 176.02615, 2010/7/24 8:21:5, 8, 1.815
3344504, -38.12964, 176.47934, 2010/7/24 9:40:36, 4, 2.075
3344508, -38.1288, 176.46902, 2010/7/24 9:51:47, 5, 2.575

Seems to have tapered off, not much in the last 8 hours according to the seismograph.
[atsimg]http://files.abovetopsecret.com/images/member/fca00e333a06.jpg[/atsimg]

Heres an interactive map of the event plots, blue icons are < 2.0, green 2.0 >
Map


Last known eruption 1981

Sources;
www.geonet.org.nz...
www.volcano.si.edu...

reply to post by muzzy


I remember back in my school days seeing the pictures of the pink and white terraces that were destroyed in the last eruption (just before I was born ) but the mountain is not marked on the Smithsonian Volcano KMZ for Google! I wonder why?

They seem to miss a few - 2 in Iceland that I know of. I am steadily making a collection!

heres a little artical that i found on extint volcanoes in norway at one time in geos history the main land of norway was mostly active volcanoes ,


www.nrk.no...

reply to post by alysha.angel


Excellent, but my Norwegian is a little rusty non-existent so here is the link via Google language tools. Phew that's better!

[edit on 27/7/2010 by PuterMan]

Originally posted by PuterMan
reply to post by alysha.angel

 

Excellent, but my Norwegian is a little rusty non-existent so here is the link via Google language tools. Phew that's better!

[edit on 27/7/2010 by PuterMan]

lmao ,

thank you , iv gotten lazy in my old age .

its still in my opinion that there is no such thing as a extinct volcano as there has been document proof that those they have become active once again.
bad idea for norway which has a few of them to say the least.

reply to post by alysha.angel


There are many documented cases of so called extinct volcanoes becoming active again I believe.

This site defines the differnce between extinct and dormant as about 10,000 years, and not expected to for another 10,000.

That means that ALL Holocene volcanoes can only be considered as dormant.

Of course the best example of this is my pet Chaiten.

The most recent eruptive phase of the volcano began on May 2, 2008, and is ongoing. According to the Global Volcanism Program, radiocarbon dating of older tephra from the volcano suggests that its last previous eruption was in 7420 BC ± 75 years.

Source

Edit to say this is a slightly better description of dormant even though the figures are the same.



[edit on 27/7/2010 by PuterMan]

Originally posted by PuterMan
reply to post by muzzy

 

I remember back in my school days seeing the pictures of the pink and white terraces that were destroyed in the last eruption (just before I was born

) but the mountain is not marked on the Smithsonian Volcano KMZ for Google! I wonder why?

They seem to miss a few - 2 in Iceland that I know of. I am steadily making a collection!

Thats because its a complex of volcanos, Okataina is the correct name for the area, Mt. Tarawera is just part of that. Partly my mistake, when I seen the locations of the quakes I assumed it was Tarawera, when in fact it was mostly at Makatiti Dome to the north west.
Heres a couple of links about Okataina Volcanic Center.
Smithsonian
You are probably familiar with the layout of that site, if you click on sub features it lists the craters, cones, domes, and thermal features, I tried to make a kmz file out of their list to draw up a map, but when I looked closely their lat, long positions were a little bit out and it wasn't much help. I'll have to do some fiddling around with GE and back to csv file.

GNS_Okataina
A bit old fashioned layout, but full of informaton

Okataina Volcanic Center swarm of 24th -31st July 2010, 66 events in it so far. (nothing going on last 2 days)

I did a page on my swarm blog about it, it has the list of events on there
Okataina Swarm

Found this quite interesting, from the GNS page I linked to last post

EVENTS LEADING TO AN ERUPTION The course of events likely to precede the next eruption at Okataina depends largely on whether the eruption is of basaltic or rhyolitic type. If the next eruption is basaltic it will probably occur with only a short period of seismicity, detected over a few days, or at most weeks, before the eruption. (The 1886 AD Tarawera eruption was preceded by no more than 1 hour of felt earthquakes!) This is because a basaltic eruption will probably involve a relatively small volume (» 1 km3) of low-viscosity magma which will rapidly fracture its way up through the earth’s crust from a depth of about 15 km. It will be difficult to distinguish the seismicity associated with this fracturing from the frequent non-volcanic earthquake swarms which now occur without associated eruptions, about once per year in the Okataina Centre. Deformation of the ground surface above the earthquake locations will probably precede and would help identify an impending eruption, if the deformation occurs within previously surveyed networks, such as those installed at Tarawera-Rotomahana, or near lakes used as tilt-level indicators, so that it can be instrumentally measured (see Figure 12). Ground deformation occurring elsewhere may not be detectable until becoming visible to the naked eye, probably immediately prior to the eruption. The short duration anticipated for precursory seismicity and ground deformation suggests that a basaltic eruption may not be usefully predicted. The eruption may occur before it could be confidently recognised as definitely impending.

[edit on 2-8-2010 by muzzy]

I just got back from Nicaragua. I went to the Masaya (Pronounce as Messiah) Volcano. It was awsome, but that day my camera battery died.

I am trying to get a picture from someone else. There were 18 people with me.

There are parrots that live in the cone. They don't have trouble breathing the fumes, but the fumes protect them from preditors. I only coughed a few times. Most of the time there was a great breeze blowing the plume away from us.

Here is a neat photo link for you.
www.tropicaldiscovery.com...

The best part was that it growled while I was there. I didn't feel any movement, but I did get to hear her.

Puterman is to modest so - here's his Thread of useful links on quake and volcanoes

reply to post by zachi


Wow, fantastic! I would love to go and see something like that.

Looking forward to seeing some pics if you can get hold of them. Remember to make a note to yourself.......

Always carry spare batteries!

Katla seems to be a little active today. Do the varying depths or location mean anything?

en.vedur.is...=table

[atsimg]http://files.abovetopsecret.com/images/member/975af23f6096.png[/atsimg]

Wednesday
04.08.2010 18:28:57 63.539 -19.370 1.1 km 2.0 34.07 6.2 km E of Skógar
Wednesday
04.08.2010 16:11:13 63.737 -19.199 0.3 km 0.3 99.0 11.0 km NNE of Goðabunga
Wednesday
04.08.2010 16:10:20 63.592 -19.211 9.5 km 0.8 99.0 5.6 km WNW of Hábunga
Wednesday
04.08.2010 16:07:27 63.588 -19.217 10.0 km 1.3 99.0 5.8 km W of Hábunga
Wednesday
04.08.2010 16:03:56 63.601 -19.208 10.1 km 0.9 99.0 4.8 km SSE of Goðabunga
Wednesday
04.08.2010 12:02:08 63.689 -19.285 1.8 km 0.6 99.0 5.8 km NNW of Goðabunga
Wednesday
04.08.2010 04:43:22 63.689 -19.401 1.5 km 0.3 99.0 4.1 km ENE of Básar
Wednesday
04.08.2010 03:31:50 63.642 -19.581 16.4 km 1.2 99.0 6.3 km SW of Básar
Wednesday
04.08.2010 02:55:40 63.689 -19.262 1.6 km 0.7 99.0 5.4 km N of Goðabunga

reply to post by lasertaglover


I would say it was of no concern. It is interesting that they came in a bunch of small ones but there has been very little effect on the tremor monitor so I suspect a fault/isostatic related rather than magmatic seismic origin.

reply to post by PuterMan


Thank you. I thought that the varying depths might be related to some small magma shifts, not really upward, but lateral.

Does anyone know of any live feeds for this volcano?

www.msnbc.msn.com...

"Erupting volcano badly injures several Indonesians
At least four villagers living on Mount Karangetang's slopes are missing, officials say"

reply to post by lasertaglover


No, but it seems as if you are the only one who is paying attention, I was wondering if maybe I had hallucinated the entire days news....lol seriously though, glad to see your post, all the other volcanoes everyone jumps at, this one blows, and no one utters a peep, strange, save you and i of course.... I'll keep searching...

reply to post by lasertaglover


You will get better information here and if there are any cameras these people will know about them I have no doubt. I created a thread in case anyone else knows anything. Seems this eruption has been ignored (by ATS) as you say!

Have to say I am not actually aware of any Indonesia live cams.

Edit: Heh maybe not! On the Eruptions! thread above they seem hung up on Yellowstone!

[edit on 6/8/2010 by PuterMan]

reply to post by PuterMan


Eruptions is one of the best around, and my personal favorite. I made a lot of good friends during the Eyjafjallajökull eruption on that site, and more importantly, I learned a lot of great information from a lot of actual experts from around the world. The 24/7 updating on Eyjafjallajökull was fantastic, and I remember fondly watching stuff happen at 3:00 a.m. with some wonderful people.

I haven't been able to find anything with a new update on Karangetang today.

reply to post by freetree64


Thank you. I felt the same way, did a volcano really go off, and no one is watching?

Interesting bit of news out of Columbia. Galeras might be causing problems again.

Authorities fear eruption of Galeras volcano
colombiareports.com...