Quake Watch 2013

reply to post by muzzy


I forgot to add;
since the 5.7 on the 18th UTC to the 77.75hr timemark
mag1= 59 , mag2= 401 , mag3= 207
mag4= 36 , mag5= 4 , mag6= 1
total= 708, total energy released= 102,046.250 TTNT

I'll put all these maps and graphs on an eqarchives page when it all settles down

reply to post by muzzy


total energy released= 102,046.250 TTNT ,,,so if E =mass x speed,,,mass being the plate itself,, the speed movement in dist mesured, using gps,,,will the numbers hold true?
E=total energy released
M=Plate
S=dist of Plate Travel,,,,,,
just curious.

reply to post by muzzy


No sweat. I suspected it had something to do with some aspect of my gross ignorance on the topic.

Will check your page out.

So, maybe I missed it . . .

What do YOU make of the progression you outlined?

What are your expectations therefrom?

reply to post by TrueAmerican


Hey TA, thanks for the link to that HUGE list of stations, that site is very helpful far as being able to tell which ones to attempt to bring up on GEE, i really do appreciate it!
So have you got a chance to check out what is going on in this area of interest... This swarm/aftershocks in the greenville Ca area... I know MT lassen is to the north a ways, and lake almanor directly to the north of this swarm.
Since the 5.7 eq back in may, there have been hundreds of after shocks, which up until a few days ago had stopped, but seem to be increasing rapidly, which many are not being updated on the recent eq list for this area EQ

Most of these quakes are about 6-7 miles deep... is this any kinda of sign that magma may be moving and that the Mt lassen area could see an eruption?

I just came back from holidays in Croatia, I hope you are safe.

When I watch the recent quakes, it seems like a lot of activity is going on the past few days. Let's just hope no big one will occur.

................so that's at the 4 day mark
since the last graph that finished at 22/07/2013 2:51, there have been;
mag1= 65 , mag2= 292 , mag3= 57
mag4= 8 , mag5= 0 , mag6= 0
total= 422 total energy released= 12062.000 TTNT

all up since the 6.5
mag1= 77 , mag2= 545 , mag3= 222
mag4= 33 , mag5= 2 , mag6= 1
total= 880, total energy released= 27,125.000 TTNT




but wait, there's more...............

This is very concerning, on the map for 22nd July UTC which is noon yesterday to noon today NZ time.
3 mag 4 quakes off the coast of South Canterbury and Otago, very unusual, never seen them there of that size before.
Looks like the South Island deforming to the SW again, like what the 2009 Dusky Sound mag 7.6 did, thus causing the Darfield 7.1 of 2010
Could be something brewing for Christchurch again

[color=8BB381](click image for interactive page, opens in new tab/window)

lets hope its just a Geonet data error

reply to post by muzzy


Eeek Muzzy I seriously hope not! Even the wellington EQ's have stuffed up my sleep - amazing how quickly the memories come back!

A couple of very interesting articles today regarding the Wellington Quakes. The first titled swarm could trigger Wellington fault

talks about the possibility current activity could trigger the Wellington Fault Now that is a scary prospect!

Seismologists say the weekend's swarm of earthquakes could be on a new fault they have not mapped before, and could possibly trigger movement on the feared Wellington fault.

The other talks about the fault being "larger than originally thought"

A fault line previously believed to be relatively small could be capable of much bigger earthquakes than originally thought.

All in all pretty "scary" stuff, given the press & GNS/Geonet have typically been very "upbeat" in past reporting.

reply to post by muzzy


Those 3 quakes you mentioned were fairly deep. From N to S, they were 222.5 km, 132.5 km, and 147.5 km. Their location seems to be too far north to be associated with the subduction of the Austrailian plate a bit farther south. Like you mentioned, maybe the locations are not finalized yet.

Nice maps, by the way.

reply to post by Evltre


what a bunch of geniuses those scientists are

All that was posted on ATS by muzzy on Friday before the 6.5, based on the first 5.7 quake

with further detail on Monday




I have updated the fault map since to include the Needles and Vernon Faults

reply to post by Olivine

thanks, I try my best with what tools I have available
interesting though, when I did the NZ seismic section page I didn't go that far east at that latitude, as there were no events in the short time period I used.
Could be worth doing that exercise again, using a longer timeline and see what pops up.
It never occurred to me that the Australian Plate subducted that far east down there, never really took note of the depths when quakes occurred in that area in the past.
There was a mag 5 during the Christchurch quakes series a bit more to the east at that latitude which was later deleted from the data, so these could indeed be an error

I had a look at depths from another angle here, and there are signs that W-E subduction does go that far east, perhaps indicating that the Plates change direction just south of Christchurch rather than at the Alpine Fault. Whether this is new ( since 2010) or not needs to be researched further.
The quake in question is on the December 2012 map

Ref: 2012p909882
Lat/Long: -44.1811 172.7082
When: 02/12/2012 15:45:16 UTC
Depth: 153.1 km
Mag: 2.6213 ML
No. of Phases used: 11
Status: automatic
Location: , Off E. Coast Of S. Island.
Energy Released: 0.129 tonnes of TNT

I'm sure I posted it here, but can't find it now
or maybe I just thunk it
"5.0 Central Italy 21-07-2013, that will cause a thousand aftershocks"

was just before our 6.5 quake.

so just when you think you have it all sussed out, the Earth goes and throws a dud. Traditionally mag 5 Italian quakes produce a heap of aftershocks.
only 35 aftershocks for that one. Could be because its offshore, or there aren't many seismo's close by, or it is a foreshock. Data is to 60 hrs since the 4.9, now 75hrs since so looks like its over, nothing in the last 15 hrs.

[color=8BB381](click image for interactive map, opens in new tab/window)

Minxian, Gansu, China 5.9-6.0Mw/6.6Ms currently has 187 aftershocks

China Earthquake Networks latest earthquake catalog (last 1 week)

I'll map it out later, have to go to work

Do ya'll think these 4+ quakes in Chile are a warning of bigger things...??

earthquake.usgs.gov...

75% of them are in that subduction depth range.

The South Pacific is still shakin':

Magnitude 5.9 - 288Km Sw Of Vaini. Tonga

Location in Google Maps

• Date-Time: Wednesday, July 24, 2013 @ 03:32:35 UTC
  
• Earthquake location: 23.059°S, 177.157°W,
  
• Earthquake depth: 166.9 km
  
• Distances:
  288km (178mi) SW of Vaini, Tonga
  293km (182mi) SW of Nuku`alofa, Tonga
  711km (441mi) SE of Suva, Fiji
  811km (503mi) SE of Nadi, Fiji
  819km (508mi) SSE of Lambasa, Fiji
  
• Event ID: usb000ilce
  

Derived from Event Data Source: USGS
Powered by QVSData

Fairly deep at 166 km, and thrusty. EMSC have it at Mag 5.6 mb.

as promised in post by muzzy


Minxian, Gansu, China aftershocks map

[color=8BB381](click image for interactive map, opens in new tab/window)

mag< 1= 28, mag1= 148, mag2= 54 , mag3= 12
mag4= 3 , mag5= 1 , mag6= 1
total= 247 total energy released= 123,695.611 TTNT

as at 16:13:29hrs elapsed time after the 6.6

The grid like pattern is due to only 2 decimal points in the lat/long, many of the events are stacked on top of each other because of this, which you will see on the interactive map if you click on the more solid icons.

Not sure whats with the delay, they are nearly a whole day behind, maybe they just load the data once a day, I forget now.

reply to post by Olivine


not much of a wiggle on SNZO
depth

Was not felt.

Magnitude Ml 4.3
Region CENTRAL CALIFORNIA
Date time 2013-07-24 16:46:02.0 UTC
Location 35.49 N ; 118.29 W
Depth 7 km
Distances 2589 km NW of Mexico City, Mexico / pop: 12,294,193 / local time: 11:46:02.0 2013-07-24
408 km NW of Mexicali, Mexico / pop: 597,099 / local time: 09:46:02.0 2013-07-24
67 km E of Bakersfield, United States / pop: 347,483 / local time: 09:46:02.0 2013-07-24
19 km S of Weldon, United States / pop: 2,642 / local time: 09:46:02.0 2013-07-24

www.emsc-csem.org...

This one was felt.

Interesting if it is an aftershock or not.

Magnitude mb 5.1
Region TAIWAN
Date time 2013-07-24 15:32:14.0 UTC
Location 23.88 N ; 121.59 E
Depth 5 km
Distances 129 km S of Taipei, Taiwan / pop: 7,871,900 / local time: 23:32:14.0 2013-07-24
10 km S of Hualian, Taiwan / pop: 350,468 / local time: 23:32:14.0 2013-07-24

www.emsc-csem.org...

reply to post by piequal3because14


IIRC,

Those Taiwan quakes are near a region of the East coast railway where they have to redo the tracks quite frequently. I don't recall if it's every month or every 3 months or something--the land is constantly moving at a relatively rapid rate.

Originally posted by BO XIAN
reply to post by piequal3because14

 

IIRC,

Those Taiwan quakes are near a region of the East coast railway where they have to redo the tracks quite frequently. I don't recall if it's every month or every 3 months or something--the land is constantly moving at a relatively rapid rate.

I know this ,the question is how long before a big one and what effects will have in terms of displacement.

I hope not for a new Atlantis although signs in this way are.

because

Taiwan was a very disputed territory during time.

and 2014 will be a very very interesting year.

reply to post by piequal3because14


You sound like you believe the disputed nature of Taiwan as territory could result in some super devastating quake. ???

I suppose IF Tesla's "split the earth" technology were true and involved, you could be right . . .

On the whole, I think Taiwan will be around a while . . . though in for a rough ride . . . "every island shall be displaced" IS a Biblical prophecy.

One of the huge hazards is that the bulk of Taipei is built on a flood plain where liquefaction could be a huge problem. I think the engineers have been fairly diligent with the more modern structures. There's a fair number of older ones around.

I greatly miss living there and the people. I'm not sad to be out of that liquefaction zone.

Though in terms of quakes . . . anything below a 5.5 was hardly cause for waking up. LOL.