Quake Watch 2013

reply to post by pheonix358


Not getting at you but, they are still showing Mag 7.8 and all the providers agree it is 7.3/7.4. They are showing not tsunami or no info, despite the fact that the last USGS update specified tsunamigenic.

You can understand perhaps why I find them not much use.


OK maybe the 7.8 I can forgive. USGS is being the usual pain in the butt and has just changed it back to 7.8

Prov,Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
emsc,2013-11-17 09:04:58, -60.320, -46.422, 7.5, 30.0, Scotia Sea
gfzp,2013-11-17 09:04:57, -60.390, -46.550, 7.4, 10.0, Scotia Sea
usgs,2013-11-17 09:04:55, -60.295, -46.362, 7.8, 10.0, Scotia Sea (150)

I give up!

The others are creeping up now. Note to self: STFU until the dust has settled!

PuterMan
Looks as if your own uncomplicated service suffered a bit of a dropout there.
Does it give location and depth by the way?

No dropout.
Thats how the screen looked at 20:40 local (Melbourne, Australia) when I took a photo of the screen showing the current quake coming in.

It doesnt show location and depth, no. And its totally uncalibrated, but I can get a feel for how big an earthquake is by seeing the differnece in arrival time of P and S waves to get a rough idea for distance... and for that distance then seeing how big it looks on the screen.



More exciting now. Totally overloaded my machine.

You should get one, Puterman. Doesnt have to be complex to see the big quakes.

reply to post by alfa1


Does the screen roll round then because there was a trace below the big one which made it look like a gap? I am refering to the line at 2300 which is not showing on the next image



I would love to get one - I would be as happy as a porcine animal in excrement, but pecuniary considerations preclude such I am afraid.

ETA: BTW can you display in UTC? Does the program have the option?

PuterMan
Does the screen roll round then because there was a trace below the big one which made it look like a gap? I am refering to the line at 2300 which is not showing on the next image

The screeen doesnt "roll", but I wrote the software so it wipes the next two hours in advance. At midnight (local) it will start drawing at the top of the screen again.

No, it doesnt do UTC, but I have a clock on the wall dedicated for that.

The computer is an old laptop, probably more than 10 years old by now, but it doesnt have to do much. That would be the least of your problems in setting up a system for yourself. There is also free software (that I dont use)... so you really just need to find some sensor system. Homemade even.

reply to post by alfa1


The 10 year old laptop I have. Running Windows XP Home.

There is also free software (that I dont use)...

Begs 2 questions. (1) Why don't you use the 'free' software and (2) Is your software available? Actually (3) Which operating system? (It looks like XP)

so you really just need to find some sensor system. Homemade even.

And there I stick. I can wire a house but electronics are beyond me.

M6.0 Earthquake Celebes Sea (262) 03-Nov-13 (b000ks1g) DOWNGRADED to M5.9

See details of the quake which was originally Mag 5.8 and then uplifted to Mag 6.0 here or here

PuterMan
Begs 2 questions. (1) Why don't you use the 'free' software and (2) Is your software available? Actually (3) Which operating system? (It looks like XP)

1. Mostly because I just wanted to do everything myself. 2. No, because its just custom written for my own hardware, and 3. Yeah, old windows XP.

PuterMan
And there I stick. I can wire a house but electronics are beyond me.

Looking around the internet, it seems that if you want to "get your feet wet", a very simple setup can be made as described here if you can wire up one transistor.
Give it a go, I say.
What it will lack is low frequency response due to both the soundcard and the pendulum itself. Distant earthquakes are best detected using low frequencies, but for the cost of almost nothing it should be ok for anything "local".

reply to post by alfa1


Had a quick look at that

but for the cost of almost nothing it should be ok for anything "local".

I guess it will show nothing year in year out then except perhaps the extremely rare events we get here (1 in every 3 to 6 years and nowhere near me anyway.)

What I am really after is a 1000m borehole instrument...............where is that lottery win when I need it?

waching this lines it looks like the scotia EQ stirred up the magma chamber

www.isthisthingon.org...

Wow that is some big shaking down south

earthquake.usgs.gov...
Could this big earthquake closer to Antarctica crack off some big icebergs?

This was very close to the South Orkney Islands (the little islands in the pic above).

en.wikipedia.org...

There are two research bases there Orcadas & Signy Island. I wonder if it caused any damage and if the researchers working there are ok?

www.komar.org...

Damn, the fault is going ham down there

I know certain members have an interest in Israeli quakes.

The links to their site (Geophysical Institute Of Israel) are broken, which I have mentioned to them, but if you look at this post you will find further information and a link for a CSV file of the last 30 days - continuously updated.

I can't link it directly here as it downloads immediately in most browsers being a CSV and that breaches the T&C.

ressiv
waching this lines it looks like the scotia EQ stirred up the magma chamber

www.isthisthingon.org...

Aside from the question as to why you would be smiling if the magma chamber had been stirred up, what actually is it that makes you say that?

Several of the seismos show little of no trace of the event passing through at all!

reply to post by SeekingDepth


Nice post * 4U

Could this big earthquake closer to Antarctica crack off some big icebergs?

No it is just the bottom of the planet getting ready to drop off. Nothing to worry about.

Sensible answer. No probably not if you are thinking in terms of calving great islands of ice, but it may have given a few penguins a shock.

I wonder if it caused any damage and if the researchers working there are ok?

No bad news posted on the British Antarctic Survey site so far.

reply to post by PuterMan

was ment as an wondering smiley...:-(

you see the eq lines.... than for an longer period weird lines as an jelly pudding vibrating to the tremor.....its on several of the stations visible

www.isthisthingon.org...

PuterMan
I guess it will show nothing year in year out then except perhaps the extremely rare events we get here (1 in every 3 to 6 years and nowhere near me anyway.)

A three step program:
1. Construct the simple seismometer, as described earlier. Better than nothing, but the webpage describes it to be a reasonable first step.
2. Build a Lehman seismometer and attach it to the electronics/computer setup you did in step 1. That alone will massively enhance the performance for long range quakes.
3. Build/buy/steal an analog to digital converter for the Lehman. That will enhance the performance of the Lehman, and bring you everything you want.

alfa1

3. Build/buy/steal an analog to digital converter for the Lehman. That will enhance the performance of the Lehman, and bring you everything you want.

That escalated quickly

aLLeKs
That escalated quickly

Wasn't serious of course. I actually typed "borrow" to start with, then though that maybe he'd want one to keep so deleted it. But it still sounded better with three words so I put "steal" in there instead.
Not that I'd have the faintest idea where anybody would find one to steal, anyway. Its a bit hobbyist specific.

But the general concept still stands. Start with something simple, then improve it over time. Not just Puterman, but anyone with an interest.

reply to post by SeekingDepth


British Antarctic Survey See this link to our website: www.antarctica.ac.uk... No one is at Signy yet, our closest research station, but will arrive on Nov 28 so hopefully the station is not too shaken up.
News Story - Series of large earthquakes in Scotia Sea close to South Orkney Islands - British...
www.antarctica.ac.uk
Home » About BAS » News and Press Releases » News Story - Series of large earthquakes in Scotia Sea close to South Orkney Islands »

They have a FB page. No one there yet, 11/28 ETA?

British Antartic Survey on FB

news story

Crazy quake swarm going bit west from Hengill volcano in Iceland. That is weird place for quakes, and there is no volcano there. No idea what is going on there. I have never seen quake swarm in that exact place.

Reykjanes Peninsula

Time&Magnitude


After looking the depths of these quakes (4-6km) I can say it could be volcanic. The most lava chambers are at that depth. Is this new volcano? No idea. This is really close to Iceland's capital Reykjavik.

Quake table; Reykjanes Peninsula