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#1182548 - 11/03/2013 10:33 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
New Britain PNG just had an M6.7, approx depth between 41 and 84kms. Buoy nearby registering in event mode. More info to come as it pans out.

A bouy east of Kamchatka Peninsula, western 'arm' of the Aleutian Islands, Alaska, has registered a 2 metre drop/variance in depth/height of the water column/sea floor. (EQ yet to occur, or to be reported)
National Data Buoy Centre map


Edited by duckweather (11/03/2013 10:39)

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#1182707 - 11/03/2013 22:36 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Tennant Creek (nearby) just had an M3.5 (33kms deep).

PNG has had a cluster of M4+'s today and an associated M4+ in the Santa Cruz Islands region. This general region is still on the move and I feel there is more to come (as I have previously mentioned). I still get a gut feeling that this area may see an M5++? this month again, perhaps causing sea level disturbances.

Another region I get a gut feeling may experience a substantial movement is Japan (coast).

The Australian mainland may see some more movements in relation to the plate/volcanic issues north of the continent (a feeling only).

Cheers for now, Duck.

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#1182729 - 12/03/2013 07:41 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
If you are watching the Global Incidents Map, you will see continuous tremors occurring (being registered) in Southern California. The region of the Anza in the Riverside country, NW of the Salton Sea and SE of Los Angeles at a depth of 7kms.
According to the USGS, the initial EQ was registered at M5.2 only to be downgraded to an M4.7.
Susan Hough, a seismologist at the USGS, has stated that the initial couple of quakes (the first a foreshock) had sent the monitoring system into a confused state and began recording multiple smaller tremors every minute or so.
As the day pans out, a clearer picture of the actual situation will happen.

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#1182732 - 12/03/2013 08:01 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
To add to the above post - the quake in SoCal was situated on the San Andreas Fault.

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#1182757 - 12/03/2013 09:56 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
It does seem there is somewhat of a clustering of M1+'s and M2+'s occurring around the regions west of the Salton Sea and around the Los Angeles areas.
The Global Incidents Map is still registering (from the USGS) regularly occurring rumbles. Let's hope for the communities there that this is not a sign of a bigger quake to come or reoccur.

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#1182785 - 12/03/2013 11:55 Re: Earthquakes [Re: Lindsay Knowles]
Arnost Offline
Weatherzone Addict

Registered: 10/02/2007
Posts: 3909
_________________________
“No. Not even in the face of Armageddon. Never compromise” ...

And this of course applies to scientific principles. Never compromise these. Never! [Follow the science and you will be shown correct in the end...]

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#1182787 - 12/03/2013 11:59 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Now, some of you may think I'm being a little morbid by posting the following live webcam link to a Los Angeles live seismograph, but it helps confirm the rumbles they are experiencing at the moment. At this point I believe there may have been over 200 tremors involving the area.
ABC7 Live Video (Los Angeles)

Something is not quite right with this clustering. Many residents are feeling quite unnerved. Hopefully it is similar to a cluster which occurred some months ago and settled down.

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#1182810 - 12/03/2013 14:15 Re: Earthquakes [Re: Lindsay Knowles]
Locke Offline
Weatherzone Addict

Registered: 27/12/2007
Posts: 4553
Loc: Brisbane
According to news reports there was a 4.7 magnitude quake in Riverside county at about 9am on Monday morning. It doesn't seem to show on the map.
_________________________
This post and any other post by Locke is NOT an official forecast & should not be used as such. It's just my opinion & may or may not be backed by sound meteorological data. For official information, refer to Australian Bureau of Meteorology products.

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#1182812 - 12/03/2013 14:27 Re: Earthquakes [Re: Locke]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Hi Locke, just a quick one here, coz gotta dash.
Yes, you're right, re: the quake and if you are looking at the Gobal Incidents Map, you may not find all of the other worldwide quakes (generally) and the one in California, as the the Global Map only displays 100 events at a time (the latest ones).
There have been about 400+ tremors in California in the last 24 hours (abouts).
I'll post some other links when I get back later, so that you can see more of the worldwide tremors/quakes.
Cheers, Duck.

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#1182838 - 12/03/2013 16:36 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Here's a link to an article which has some extra details about the California quakes and multiple/continuous aftershock (and/or precursors), including a more precise location of the tremors in regards to the San Andreas Fault.
Re: quakes and residents being warned to be prepared for a chance of a larger quake

Links to other sites which record worldwide or localised tremors/quakes are on the previous page of this thread.
The USGS can be refined to various continents.
Volcano News is also a good site for EQ and Volcano activity.

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#1183117 - 13/03/2013 18:32 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Just a wee note re: Louisiana's sinkholes - Erin Brockovich has 'gone in to bat' for the locals there - NBC News video

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#1183435 - 14/03/2013 19:58 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Sorry to put this in the earthquakes thread, but I thought you may be interested in this video (the folks in NSW may already have seen this on their nightly news).
"Why a major Sydney river is bubbling"

Maybe another thread can be started for 'landslides, waterway issues etc.'?

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#1183459 - 14/03/2013 21:21 Re: Earthquakes [Re: Lindsay Knowles]
KevD Offline
Occasional Visitor

Registered: 23/09/2001
Posts: 5236
Loc: Bellingen NSW 2454
Two 4.6 quakes off N California in the last hour... Certainly busy around there, would leave me nervous if I lived on a quake line in California right now.

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#1183572 - 15/03/2013 09:17 Re: Earthquakes [Re: KevD]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Yeh, Bello Boy. There are alot of rattled nerves in the California regions at the moment.
The fear is (according to what has been mentioned on some websites) that this is a sign of a rather large EQ potentially to come. Some are actually convinced of a potential disaster scenario for the west coast.

There are animal strandings, migrations and other unnerving animal/sea-life happenings in several parts of the US (this is also happening in other places around the world).
There are issues with gas/other bubbling up in waterways and other activity clustering in some regions.
The recent activity (clustering up and down the California regions) is being attributed (by scientists) to faults activity - horizontal slip, catch and grind.

Only time will tell what all of this rumbling means for the Californians. I feel that this movement may also involve the coastline bordering Canada.
As I have said on my blog, other movements may become more pronounced in the lower/middle central to the eastern states of the US.
Florida is having it's unfair share of issues with sinkholes, tremors, gas/other bubbling and waterway/sea edge issues. Many residents (100's) have had to relocate due to their problems there and the extent (spread) of their problems is still uncertain.

There is so much I could gabble on with regarding this subject, but I don't want to hog this 'space' wink

Cheers, Duck.

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#1183594 - 15/03/2013 11:10 Re: Earthquakes [Re: Lindsay Knowles]
Sunday Offline
Cloud Gazer

Registered: 06/02/2011
Posts: 15
Loc: Port Stephens, NSW
Please do hog the space duckweather, it's very interesting smile

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#1183620 - 15/03/2013 13:29 Re: Earthquakes [Re: Sunday]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
blush shucks Sunday, you're too kind.

The general info I post here is just that, general - as I don't get a lot of time to focus on this science (EQ's) too much, unfortunately.
I sometimes miss adding extra interesting stuff and sometimes I may 'pull one out of the bag'. smile

Anyway, NSW had an offshore M2.4, NE of Ulladulla this morning. The apparent plotted position of this tremor is on a 'line' (sea floor crease) (for want of a better word) which points back to the shoreline near Ulladulla. It also (offshore) intersects with another 'crease' (at sea) which runs parallel with the coast.

There was movement evident on Melbourne seismo's and my own daggy one around and after that time.

Cheers for now.

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#1183708 - 15/03/2013 21:42 Re: Earthquakes [Re: duckweather]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
An update on that bubbling river in NSW - here

Also the Indian Ocean 'triple junction' has has an M5 in the last hour - depth of 10kms. This is sort of halfway between the west coast of Oz and Madagascar - but a little closer to Madagascar than Oz.

The Queen Charlotte Islands (Canada) has reactivated with M4+'s again today. I felt that the 'movement' in California was not going to be isolated to that (US) area and it could shift north to involve Canada (in my amateur opinion).

There's been some interesting activity on the Melbourne Uni's seismo's today, at times when not much has shown up on, e.g., the Global Incidents EQ Map or Geoscience in relation to Oz - so the reason for the activity is unclear atm.

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#1183965 - 17/03/2013 00:51 Re: Earthquakes [Re: Lindsay Knowles]
Wild Wassa Offline
Weather Freak

Registered: 17/03/2012
Posts: 417
Loc: NW ACT
I was going through some old photos today and came across this shot, that I took about 5 years ago. I was standing on the sea wall of Lake Barely Sailable (aka Burley Griffin to non sailors) when an earth tremor mid morning caused ripples to radiate off the sea wall.



I didn't realize at the time that these ripples were caused be an earth tremor. I heard later in the day that there was an earth tremor at 11am, the time when I took the shot of what I thought were ripples that formed for no reason.

Warren.


Edited by Wild Wassa (17/03/2013 00:58)
_________________________
No one's a bushman in a fog.

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#1184451 - 19/03/2013 09:49 Re: Earthquakes [Re: Wild Wassa]
duckweather Offline
Weatherzone Addict

Registered: 20/12/2010
Posts: 2769
Loc: Wantirna, Vic
Love the photo Wild Wassa - rather spooky isn't it?
Will be back properly on WZ by the end of the week.
Popped in to use a friends computer - mine (modem etc..) burn't out in a mini power surge.
Cheers, Duck wink

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#1185191 - 21/03/2013 20:10 Re: Earthquakes [Re: Lindsay Knowles]
GDL Offline
Weather Freak

Registered: 17/02/2008
Posts: 630
Loc: Bowen Mountain NSW
Large earthquake under parliment house today any thooughts on how powerful it was D.W,semms to have been felt around the country. ..........GDL

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