Quake Watch 2011

reply to post by PuterMan


+ Vanuatu x 2 mag 7s
on the 20/8/11

only 9 days ago...

= 3x mag 7's
(in four days...inc Peru on the 24th)...

seeya

reply to post by Celestica


there have been no E/Qs in the last 27 hours ( yes 27) that have registered a MAG 5...

. fullstop

seeya

Originally posted by shaneR
reply to post by Celestica

 

there have been no E/Qs in the last 27 hours ( yes 27) that have registered a MAG 5...

. fullstop

seeya

And your point? Sorry that 5.0 earthquakes don't happen on your 24 hours schedule, I guess they didn't get the memo...

My point was there have been several just a few ._ off

4.9 2011/08/29 08:03:49 -2.933 147.735 8.3 ADMIRALTY ISLANDS REG., PAPUA NEW GUINEA
4.9 2011/08/29 01:08:56 -32.807 -176.886 37.5 SOUTH OF THE KERMADEC ISLANDS

reply to post by Celestica


I just tried it again now and it is OK, correct dates. Now that is very weird.

I am assuming the reference to mag 7 was a slip of the tongue. Last time I recall there being several Mag 7 quakes on the trot was Gulf of Moro - 3 on 23rd July 2010

reply to post by shaneR


I am wondering if you are experiencing the same problem that I was. I have sited the following:

Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
2011-08-27 09:42:19, -17.352, 176.024, 5.1, 34.3, Fiji Region
2011-08-27 10:29:47, 43.936, 104.536, 5.4, 14.3, Central Mongolia
2011-08-27 10:36:52, -17.403, 176.036, 5.1, 35.0, Fiji Region
2011-08-27 12:07:35, -18.176, 168.310, 5.2, 53.0, Vanuatu
2011-08-27 20:31:53, -24.471, 179.949, 5.5, 503.7, South Of The Fiji Isls.
2011-08-28 04:30:32, -33.209, -72.085, 5.2, 11.9, Offshore Valparaiso. Chile
2011-08-28 10:10:19, -24.488, -115.910, 5.3, 10.1, Southern East Pacific Rise

Which listing are you using? Perhaps we can have a look?

+ Vanuatu x 2 mag 7s
on the 20/8/11

only 9 days ago...

Well OK but I was only responding to the statement that there were several in a week under the assumption that you were referring to the last week going backwards from today.

reply to post by PuterMan


hi PuterMan,

Um, am I going mad?

not sure, last week U said WE were both loosing it...

Am I in a time warp? Is anyone else getting the same

not sure about that either, but USGS is fine now...
+ i have checked a bit in the last hour...
( due to all this "controversy" about when the last MAG 5 was...)

although i did think it was playing up last week....
( when U said we were both mad "as hatters"...)

and speaking of time warps...
today i thought ATS "NEW TOPICs" (rolling update)
was going into reverse mode a few times...

seeya

reply to post by Celestica


so???

no MAG 5 = NO mag 5... fullstop...

we usually experience 5-or 6 every day... thats all...

and only 2 yesterday is leaving us way short on "events"... statistics wise...


MY point???

i guess the longer U go without "bigger" quakes, the more pressure builds up...no?

seeya

reply to post by shaneR


Um I just realised, the information is not up to date. Today is the 28th but I only seem to have recieved to the 28th at 10:00 am UTC or so.

My apologies that comment above it 24 hours out as I had not copped today as being the 29th.

.......I am losing my mind..............

Off to check this out.

Gee I need shooting. You are absolutely correct. I had my list set on mag 5+ that is why it is only showing the 28th - because there are no mag 5 on the 29th, or since 10:10 UTC on the 28th.

........sanity returning........

Originally posted by shaneR
reply to post by Celestica

 

so???

no MAG 5 = NO mag 5... fullstop...

we usually experience 5-or 6 every day... thats all...

and only 2 yesterday is leaving us way short on "events"... statistics wise...


MY point???

i guess the longer U go without "bigger" quakes, the more pressure builds up...no?

seeya

Yes, but that same fact is why I'm saying there's no reason to be concerned when the 5+ stop. Pressure gets built up, pressure is released. Now repeat. There aren't going to be large earthquakes all the time, but the places where they've been happening don't seem out of place to me.

reply to post by PuterMan


hi again PuterMan,
i think we are having the same problem alright, but not the one U are thinking...

this is what happened to us last week...

it is easy to just look at that list...

earthquake.usgs.gov...

+ say " oh, the last quake was X hrs ago in Fiji..."
without realising that the DATE is actually MORE THAN 24 HOURS AGO...
because they dont put that line across the page until the "first" mag 5+ of the day...

thats why i prefer this page...

earthquake.usgs.gov...

it is easier to see that there are NO mag 5+ s...

anyway..

seeya

See what I'm saying is that there have been two 4.9's in the past 24 hours which is basically a 5.0...

reply to post by shaneR


I actually don't use the USGS web lists at all as I get the 7 days text file straight into my own database. but if I do look at a USGS list it is normally the 5+ as anything smaller is not of much interest.

On the subject of stress relief don't forget it takes 1000 mag 5 earthquakes to = 1 mag 7.

reply to post by Celestica


SO,,,

what is the stat...???

a 4.9 is TEN times less energy than a MAG 5 ???
or is it 100 times less???


and i know E/Qs are ( more or less) RANDOM...

but i still find it fascinating trying to keep up with them,
and ( blame the brain), trying to find "patterns"...

thats all, sorry to spoil your fun...

seeya

reply to post by PuterMan


agree with all that.... thanks...

also can U please answer the above question....

is a Mag 5 E/Q = 10 times as much energy as a 4.9??? please...

thanks Puterman...

+ seeya

reply to post by shaneR


I believe it would be 1x. A 5.0 is tens times a 4.0. Which means each .1 is x1.

So a 5.0 is 1 time stronger than 1 4.0... not anywhere close to 10 or 100...

reply to post by shaneR

Richter Scale - Logarithmic scale for measuring earthquake magnitude. A magnitude 7.0 earthquake generates 10 times larger amplitude waves than those of a magnitude 6.0, and releases 32 times more energy.

Source:
rockyweb.cr.usgs.gov...

Originally posted by shaneR
reply to post by Celestica

 

SO,,,

what is the stat...???

a 4.9 is TEN times less energy than a MAG 5 ???
or is it 100 times less???


and i know E/Qs are ( more or less) RANDOM...

but i still find it fascinating trying to keep up with them,
and ( blame the brain), trying to find "patterns"...

thats all, sorry to spoil your fun...

seeya

edit on 29/8/2011 by shaneR because: typo

I actually think each point is a 1000 times stronger...I could be wrong though.

Ok....never mind....I am waaaaay off!

reply to post by shaneR


A mag 5.0 is 1.4 times stronger than a mag 4.9.

Not much really but you have to remember it is logarithmic.

Originally posted by PuterMan
reply to post by shaneR

 

A mag 5.0 is 1.4 times stronger than a mag 4.9.

Not much really but you have to remember it is logarithmic.

can i ask how you got 1.4? if 5.0 is 10x 4.0 would that just mean each .1 is 1x stronger since there are 10 ".1"?

Anyone see Exxon Mobil's newest "fracking" commercial? Hmmm is it as safe as they claim?



Sorry if it's already been posted.