Quake Watch 2013

Are we not doing earthquakes any longer? This one in Paddington Bear's old stomping grounds.

Magnitude 6.0 - 18Km W Of Chivay. Peru [F]

+-+17+Jul+13++02%3A37%3A42+UTC)&ll=-15.63460,-71.77290&spn=2,2 &f=d&t=h&hl=e]Location in Google Maps

• Date-Time: Wednesday, July 17, 2013 @ 02:37:42 UTC
  
• Earthquake location: 15.635°S, 71.773°W,
  
• Earthquake depth: 6.6 km
  
• Distances:
  18km (11mi) W of Chivay, Peru
  88km (54mi) NNW of Arequipa, Peru
  148km (91mi) NE of Camana, Peru
  151km (93mi) WSW of Ayaviri, Peru
  399km (247mi) WNW of La Paz, Bolivia
  
• Event ID: usb000ifva
  

Derived from Event Data Source: USGS
Powered by QVSData

Happen it did.

Originally posted by radpetey
Hey,guys and gals...

Check out this seismo from vesuvious, just a couple hours ago!

Is this weather related, or is this a little harmonic action??

portale.ov.ingv.it...

This one looks mechanical to me.

portale.ov.ingv.it...

edit on 16-7-2013 by radpetey because: (no reason given)

To that I would say (1) Harmonic possibly. I would have said cultural but for the heavy signal from 00-04 which is now tailing off towards 08. Given that Italy is 2 hrs ahead of UTC then if this was cultural that would mean the heaviest between 02:00 and tailing off towards 10:00. Since I was not there it cannot be me snoring.

The weather there on the 16th was low wind - 6km/hr and although the area of the seismo looks wooded I would not have thought this enough to make this signal, but it could be. On the other hand today when the signal has died down a bit the wind is 11km/hr so...............the curious thing is that the signal is mainly above the line.....

(2) Again the regular spread outside cultural noise hours suggests not mechanical however we have no idea, as the map does not show for me anyway, where this seismo is situated. Is it in the city or the volcano?

Either way Stromboli is one of the most active volcanoes on earth and is one of the 16 always erupting so the chances are high that this is volcanic associated activity.

reply to post by PuterMan


Thanks - I, and a lot of others follow your well informed thread - but have nothing educated to say - duh! - but am always learning from you guys.

reply to post by Happy1


Thank you. We, all of us on this thread, aim to impart what little knowledge we have to others for their enlightenment. I should point out to you that this year your host on the thread is actually Muzzy and not myself. We decided to take turns!

2 pages to help with travel times. Surface - Love & Rayleigh seem absent

This calculates the degree distance using java|script trigonometric code by latlon of source and station,

correction for geoid, non-spheroidal/ellipticity etc left for users with spare time to find out... like Haversine/Vincenty formulae (www.movable-type.co.uk/.latlong-vincenty.html), advanced geodesy...

www.uwrf.edu/PES/Geology/EDPTT_Calculator.cfm

This doesn't calculate degree, you must input as degrees from step 1.

contain several theoretical travel algorithms [ ak135 iasp91 sp6 PREM PREM (20 s) 1066 ]

www1.gly.bris.ac.uk/~george/ttimes.html

reply to post by wujotvowujotvowujotvo


I already have the moveable-type scripts built into my programs. The other looks interesting for a quick fix.

I will rephrase that. That last one looks extremely interesting and the first handy for the degrees input.

Magnitude M 5.6
Region COOK STRAIT, NEW ZEALAND
Date time 2013-07-18 21:06:38.6 UTC
Location 41.63 S ; 174.48 E
Depth 10 km
Distances 45 km SW of Wellington, New Zealand / pop: 381,900 / local time: 09:06:38.6 2013-07-19
2273 km S of Nouméa, New Caledonia / pop: 93,060 / local time: 08:06:38.6 2013-07-19
2312 km SE of Canberra, Australia / pop: 327,700 / local time: 07:06:38.6 2013-07-19

www.emsc-csem.org...

www.ldeo.columbia.edu/~ekstrom/Research/SWD/current/RADB_SWD_grd.html

2013 7 17 22 15 44.0 -16.50 177.50 33.0 4.9 FIJI ISLANDS
2013 7 17 15 31 28.0 -42.25 84.25 33.0 5.2 SOUTHEAST INDIAN RIDGE
2013 7 17 9 13 4.0 -55.75 -129.75 33.0 5.0 PACIFIC-ANTARCTIC RIDGE

reply to post by PuterMan

Didn't feel a thing
I was in Naenae in the Hutt Valley at the time, on a roof 3 stories up, concrete tilt-slab construction.
but 7649 other people did!
My beloved called right after it happened, "holy c__p man did you feel that? the house was a rockin"

Public ID 2013p537512
Universal Time July 18 2013 at 21:06:39
NZ Standard Time Friday, July 19 2013 at 9:06:39 am
Latitude, Longitude -41.55, 174.41
Intensity ? severe
Focal Depth 16 km
Magnitude 5.7
Location 30 km east of Seddon, Cook Strait.
www.geonet.org.nz...

been a few aftershocks but I haven't had a close look yet, this appears to be the largest so far about an hour ago.

Public ID 2013p538215
Universal Time July 19 2013 at 3:21:14
NZ Standard Time Friday, July 19 2013 at 3:21:14 pm
Latitude, Longitude -41.53, 174.43
Intensity ? strong
Focal Depth 15 km
Magnitude 4.5
Location 35 km east of Seddon

further to post by muzzy

Quake was on the Awatere Fault
37 aftershocks to 19/07/2013 05:05:30 UTC
mag1= 11 , mag2= 18 , mag3= 6
mag4= 1 , mag5= 1
total= 37
total energy released= 5788.954 TTNT

5 of those are outside the main group, but ARE after the 5.7
and those run on to the North Island tracking the extension of the Awatere Fault into that island, where it becomes the Wellington fault.

goo.gl...

not a lot of 5+ history in that spot
1891>

reply to post by muzzy

Didn't feel a thing

Ahh you knew it that is coming.

reply to post by piequal3because14

well no I didn't.
lately I have been doing the NZ daily maps approx every 3-5-7 days, so I hadn't noticed the little cluster of smaller quakes in Clifford Bay during that period. July maps
Still its the tourniquet point where the Pacific Plate and the Australian Plate reverse subduction direction, so we do expect to get quite a few quakes around here. Its part of daily life.
Should have known something was due, the graph showed that telltale drop of energy release two days before
NZ monthly graphs

now the Puysegur Trench is going off
48.8972° S 164.8223° E 2013-07-19 19:39:13 UTC 43.2 km MB4.4
www.iris.edu...

geonet haven't listed it yet

reply to post by muzzy

Should have known something was due, the graph showed that telltale drop of energy release two days before

It will be wonderful if you will know for 6+,but even then who will listen.

It looks as if there was a small-to-mid-sized quake off the Oregon coast (I think--it could be farther away) a few minutes ago. I'm still waiting for a network to list something...here is a picture from TA.K02D.BHZ:


image source

This image is from station PB031 near Hergert, OR.


Hmmm, still not showing up....I swear, if there are any precursers to be seen before the CSZ goes off, they won't be listed until after the main rupture.

ETA: Here is a snapshot from the transportable arraycovering the PNW, just to show that this wasn't a small event.




Last edit, I promise.
USGS has decided that it was a Mag 4.2 mb, 164 km off the coast of Bandon, OR.

We just had a 5.9
Certainly felt that one!
went on for quite a while, almost had to dive to catch a pile of books that were wobbling on the bookshelf, but they stayed upright. Started off gentle and just got stronger and stronger, then died away, wobbling for nearly a minute after the main S wave hit.
Not the bone shaker the 6.3 last July was, but enough to make you stop and get ready to dive for cover.

Public ID 2013p542711
Universal Time July 20 2013 at 19:17:14
NZ Standard Time Sunday, July 21 2013 at 7:17:14 am
Latitude, Longitude -41.44, 174.74
Intensity ? severe
Focal Depth 20 km
Magnitude 5.9
Location 20 km south of Wellington
www.geonet.org.nz...

bit of confusion at Geonet, now saying it was same place as Fridays 5.72

Public ID 2013p542711
Universal Time July 20 2013 at 19:17:10
NZ Standard Time Sunday, July 21 2013 at 7:17:10 am
Latitude, Longitude -41.56, 174.39
Intensity ? severe
Focal Depth 19 km
Magnitude 5.8
Location 30 km east of Seddon

there have been a whole bunch of them in the last 10 minutes all over the southern part of the North Island.
www.geonet.org.nz...

Public ID 2013p542718
Universal Time July 20 2013 at 19:20:16
NZ Standard Time Sunday, July 21 2013 at 7:20:16 am
Latitude, Longitude -41.57, 174.36
Intensity ? strong
Focal Depth 13 km
Magnitude 4.3
Location 25 km east of Seddon

reply to post by muzzy


i was going too say,,electromagnetic, wave patters from, CME,,but??e=mc2? how much E?

reply to post by Olivine


I am hoping that is all you get there.

Originally posted by Darkblade71
reply to post by Olivine

 

I am hoping that is all you get there.

ahh the things hoped for,,we should be able too predict and warn,,but hey ,its an inexact science,,u know,,pressure,mass,thermolcouples,,heat,et,,,

reply to post by muzzy


Ack, I just read your edits. I was coming to post that it looks like the aftershocks are rolling in. Image courtesy of QVS Data Standard software.



Be safe, Muzzy.


reply to post by Darkblade71

Me too. Just enough minor activity to let us know it is still there, but nothing too raucous.