Quake Watch 2012

reply to post by MoorfNZ

Not much now, just the extra 4-5 per day minor/light ones that ChCh are having,. of course pre Sept 4 2010 there was nothing from there.
As far as 5's go, 4 of the 10 I mentioned are Chch.

As it happens Puterman and I are working on breaking NZ into F_E type sub regions at the moment, so that we can quickly get the answer to such questions.

Your number BTW is 162-8, Mid Canterbury
I'm in 163-2, Cook Strait-Wellington (Wairarapa to the east and Kahurangi to the west are now seperate individual seismic regions due to their differing geology and based on historic activity)

Magnitude 5.2 - DODECANESE ISLANDS, GREECE
2012 January 26 04:24:59 UTC
Location
36.111°N, 25.140°E
Depth
18.5 km (11.5 miles)
Region
DODECANESE ISLANDS, GREECE
Distances
87 km (54 miles) N of Iraklion, Crete, Greece
112 km (69 miles) S of Naxos, Cyclades Islands, Greece
121 km (75 miles) NE of Chania, Crete, Greece
242 km (150 miles) SSE of ATHENS, Greece

USGS

Yeah, eight >=5.0 in the last day. The earth is a shakin'

Originally posted by muzzy


As it happens Puterman and I are working on breaking NZ into F_E type sub regions at the moment, so that we can quickly get the answer to such questions.

Your number BTW is 162-8, Mid Canterbury

I'm in 163-2, Cook Strait-Wellington (Wairarapa to the east and Kahurangi to the west are now seperate individual seismic regions due to their differing geology and based on historic activity)

What's your methodology?
At Southbridge, would I be 162-8 as well? Not as close to known faults as Moorf and her Springfield system, or larger ones such as the Porters Pass.
Interesting and valuable work and hit me up if you ever wish to 'collaborate' with the Academics. There are some who are thankfully open to collaborative work...cf Joan Wiffen and 'her' dinosaurs.
You guys keep the coal face glowing v

Thanks for all your work.

Me, I'm a humble technician.

hey muz or puter,

Is there any consideration for regional or local geological compositional variables, and thus, the varying speed of seismic waves in your reclassification efforts?

Originally posted by murkraz

Magnitude 5.2 - DODECANESE ISLANDS, GREECE
2012 January 26 04:24:59 UTC
Location
36.111°N, 25.140°E
Depth
18.5 km (11.5 miles)
Region
DODECANESE ISLANDS, GREECE
Distances
87 km (54 miles) N of Iraklion, Crete, Greece
112 km (69 miles) S of Naxos, Cyclades Islands, Greece
121 km (75 miles) NE of Chania, Crete, Greece
242 km (150 miles) SSE of ATHENS, Greece

USGS

Really good shake!!
The seismologists are saying that the volcano on Santorini is getting active. Which is a very bad thing.

reply to post by Hellas


Don't know if you've seen this. Erik Klemetti at Wired.
Santorini is one of my favorites.

www.wired.com...

*Sneaks in quietly, smiles sweetly at Mr PuterMan, slaps this up on info wall*

2012/01/26 01:04:31.7 55.172 -7.573 3 2.2 3 BUNCRANA,IRELAND FELT BUNCRANA...

Thought you said Ireland was probably the most seismically stable area in the world? so guess this was exception to that rule eh?

www.earthquakes.bgs.ac.uk...=summary

*quick;y sneaks back out of room*

Rainbows
Jane

Originally posted by DogsDogsDogs
reply to post by Hellas

 

Don't know if you've seen this. Erik Klemetti at Wired.
Santorini is one of my favorites.

www.wired.com...

No I haven't. Thanks for the link!!

reply to post by angelchemuel


I see you've been paying attention.

But if that quake is all he's got to worry about, he's probably right.

Let's not make him more grumpy, shall we?

reply to post by aorAki

We started by going down to half degree Latitudes and then following known Faults that defined certain regions Longitudally.
Had 38, but its too many for energy calculating, down to 14 now

You chaps have been re numbered today - to 1625
Southbridge is just inside 1625, by 14km

Some of the names will sound familiar, but they don't necessarily follow the Province names on a map, but are based on seismicity and geology.

1601-Northland-Auckland-NE of the North island
1602-East Cape-Gisborne
1591-Waikato-Bay of Plenty
1592-Taranaki-Wanganui
1593-Hawkes Bay
1594-Wairarapa
1632-CookStrait-Wellington
1633-Kahurangi-Nelson-Wairau
1621-West Coast
1622-Marlborough-North Canterbury
1623-Fiordland
1624-SE of the South Island
1625-Mid Canterbury
1611-Solander

Puterman has to do his thing now and see if it works with his program.

heres a sneak preview KLM Google Earth file of what it looks like at this stage.
Once we get it sorted out then an explanation of how and why they are where they are comes next.
If anyone sees something obviously out of place please say
There are a few fuzzy borders such as between West Coast and Fiordland at Jackson Bay/Mt Aspiring where the Alpine Fault goes sub marine.

reply to post by TrueAmerican

Interesting question, short answer is yes,and its reflected most in the region between the two islands, which USGS call Cook Strait. In fact because the Australian Plate and Pacific Plate meld and twist here its quite complicated. Studying siesmographs either side of the Strait you can see the differences in geology by the way they react to quakes to the North and South. for example quakes in the Marlborough Sounds show stronger traces on the SW North Island than they do over on the Nelson side despite the the Sounds being on the South Island, because the rock either side of the Strait is Greywacke and argillite , whereas going west from D'Urville Island its predominantly granite, Geology wise the two Islands are seperated at Nelson/Tasman Bay, not Cook Strait itself.

reply to post by muzzy


Nice. So are you guys noting and storing actual seismic wave speeds with these areas in some kind of database?

reply to post by angelchemuel

Thought you said Ireland was probably the most seismically stable area in the world? so guess this was exception to that rule eh?

Why would that be an exception. I did not say that we don't have quakes, only that we probably have fewer than anywhere else. After all we did have one in Clare a couple of years ago.

Never felt it by the way. Too far away. As far as I know the area where I live has never had an earthquake in written/living history.

reply to post by PuterMan


Hey, PuterMan!! Can I ask you to check out my thread HERE
and give me some info about this buoy off of Chile?? I am a complete noob when it comes to quakes and tsunamis!

Pretty please, with fairy dust and frog bumps on top??!!

reply to post by TrueAmerican


That is not the intention at present.

The exercise is to define coherent areas of seismic activity so we can work back through the GeoNet database and attempt to build a stress profile.

summer5
Member
posted on 20-9-2011 @ 03:05 PM this post
reply to post by PuterMan
-------------------
"Here are two different sounds (being reported all over the world - not always followed by a significant quake). Here are two video's I found this morning regarding the quake in CO, and the following day in VA. Both were heard prior to the quakes.

Here is the one in VA:" unquote

just copy/paste, below for youtube video,,,



ANy way my point being,,
1. Apparently the "noise fad/phenom etc is NOT NEW,,
2. If earthquakes associated with the noise,,
IS there a common Fault Line,,
3. Will the next earthquake be world wide, literally.


www.youtube.com...&hl=en_US&feature=player_embedded&version=3">

ANy way my point being,,
1. Apparently the "noise fad/phenom etc is NOT NEW,,
2. If earthquakes associated with the noise,,
IS there a common Fault Line,,
3. Will the next earthquake be world wide, literally.

reply to post by jennybee35


Done. Now I am smothered in fairy dust!!

It is a data drop out by the way and not as the twerp on the link said a wave of magma

reply to post by BobAthome


I have heard that one before. Sounds like gas to me.

It certainly is not seismic.

Will the next earthquake be world wide, literally.

Only if it is > Mag 13 !!




ETA: I knew I had calculated this somewhere. A few paragraphs down.

Originally posted by muzzy

REF:3648170 LAT/LONG: -47.00503, 165.53615 UTC: 2012/1/25 6:2:26 NZDT: 2012/1/25 19:2:26 DEPTH: 26km MAG: 5.726ML

G_L REGION: 1611 LOCATION: os E of Puysegur Trench

ETA: looks way bigger than 5.1Mb on LISS SNZO



It appears Geonet have revised this quake to be 2 seperate events, 92 seconds apart

REF:3648170
LAT/LONG: -46.91265, 165.2495
UTC: 2012/1/25 6:2:28
NZDT: 2012/1/25 19:2:28
DEPTH: 6km
MAG: 5.517ML
G_L REGION: 1611
LOCATION: os E of Puysegur Trench
Reported as Felt:
Largely observed 11 Bluff [2], Colac Bay, Halfmoon Bay [2], Kingswell, Makarewa, Otatara, Riverton, Saint Clair, Scotts Gap
Weak 1MM3 Weak 13 Alexandra, Birchville, Bluff, Clifton, Gore, Invercargill [2], Orepuki, Otatara, Otautau, Richmond, Riverton, Strathern
Total 24
Energy Released: 2843.861 tonnes of TNT

REF:3648171
LAT/LONG: -46.57, 167.08
UTC: 2012/1/25 6:4:0
NZDT: 2012/1/25 19:4:0
DEPTH: 6km
MAG: 5.018ML
G_L REGION: 1611
LOCATION: os NE of Solander Island
Reported as Felt: No ( but may have been reported as part of the 5.517ML 92 seconds prior)
Energy Released: 507.468 tonnes of TNT

map of those

The 2nd one a lot closer to Invercargill.
Looking at the aftershock locations since the first one ( map here ) there is a definite SW/NE trend to this sequence, I'd say what is happening is a direct result of the Dusky Sound 7.8 of 2009, and also whats been happening in Christchurch in 2010/2011, so they may all be connected to some major changes in the seismic layout of the lower South Island (ie the Pacific Plate moving SW in this region).