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#82114 - 21/09/2009 10:02 Re: Melbourne & Victoria day to day weather
norfolk Offline
Weatherzone Addict

Registered: 28/06/2003
Posts: 2951
Loc: Caroline Springs vic.
i read that we are due for a volcano anywhere from Victoria to Queensland. But I didn't think Volcanos erupted in the middle of tectonic plates, I always thought volcanos were situated on the edge of plates, like around the the Pacific, Indonesia, even the Italian Volcanos are on the edge of the Eurasian and African plates.

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#82115 - 21/09/2009 11:13 Re: Melbourne & Victoria day to day weather
Andrew73 Offline
Cloud Gazer

Registered: 27/02/2009
Posts: 14
Loc: Greensborough
This could almost be a thread on its own, I am no geologist but I believe these volcanos were caused by Australia moving over the east Australia hotspot, creating a line of Volcanos from Queensland down to Victoria, into Tasmanian and further south, Most of the northern volcanos are extinct, but some of the southern ones as still listed as dormant and could possibility erupt?

http://en.wikipedia.org/wiki/East_Australia_hotspot
http://www.volcanolive.com/australia.html

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#82116 - 21/09/2009 11:17 Re: Melbourne & Victoria day to day weather
Sherdz Offline
Weather Freak

Registered: 17/09/2009
Posts: 82
Loc: West Warwick QLD
Maybe our plate's about to break! laugh

And what about the Newcastle earthquake a few years ago? I thought earthquakes like volcanos only happened at the edges of plates too? confused

There is a few old, extinct, volcanos around the place I suppose.
_________________________
Darling Downs... ST generator country...
http://westwarwickweather.com.au

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#82117 - 21/09/2009 19:11 Re: Melbourne & Victoria day to day weather
ColdsnapIII Offline
Meteorological Motor Mouth

Registered: 19/01/2007
Posts: 6500
Loc: Mount Macedon, VIC
They've been going on about the eruption risk down here for some time now, it gets brought up in the news every now and then.

What Andrew73 says is correct. There is a chain of volcanoes that erupted right down the east coast and also inland. I think the Warrumbungles may be one of those ranges and some of the volcanic mountains in SE QLD as well I think. The southern most of these 'hot spot volcanoes' is actually just a few km from my place, The Camels Hump which is situated adjacent to Mount Macedon (another former volcano, very old 370 million years) on the summit of the ridge.

Hanging Rock to the near north of there is another one, the exact same type of volcano as Camels Hump composed of the same type of rock. These volcanoes are pretty old, from memory about 6 million years old. There are much more recently formed volcanoes though right around my area and down to western Melbourne and then stretching right out to Far SW VIC and SE South Australia. They appear as prominent hills rising out of the Western Victorian basalt plain which is one of the largest volcanic plains in the world.

Driving between here and Melbourne you pass by many of these rather unusual looking hills, some of them are quite steep, Mt Holden near Sunbury rises about 200m above the surrounding countryside or maybe 150m I'm not sure but it is a very prominent hill in the town.

The volcanoes around my area have not erupted for quite some time, I think hundreds of thousands of years or thereabouts but the volcanoes further to the west, particularly SW VIC and SE South Aus erupted very recently, only a few thousand years ago for the youngest ones. Tower Hill near Warrnambool still has the remnants of the caldera and crater intact.

Anyway I doubt there will be an eruption in our lifetimes, but even more likely there will never be another eruption because the longer we go without one the more likely it is the volcanoes have gone from 'dormant' to 'extinct'.

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#82118 - 21/09/2009 20:07 Re: Melbourne & Victoria day to day weather
norfolk Offline
Weatherzone Addict

Registered: 28/06/2003
Posts: 2951
Loc: Caroline Springs vic.
I used to work at a school just below Mt Holden and LOVED telling the kids how the Mt was a Volcano.....scared some of them, am I cruel? I always thought the most recent Volcano was Mt Gambier in SA.

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#82119 - 22/09/2009 14:36 Re: Melbourne & Victoria day to day weather
hitbylightning Offline
Weather Freak

Registered: 31/12/2006
Posts: 308
Loc: Caroline Springs
There's been a lot of seismic activity down Korumburra way this year....

I think a lot of the western plains volcanos were 'recently' active - ie within the last 40,000 years, which on a geologiccal timescale is just the other day. And as has been said, most of the hills you see out this way are remenants of cones - Mt Holden, Mt Atkinson, Mt Kororoit, Mt Cottrel just a few. All the bassalt out here, and scoria at quarries just outside of Melton, are all the result of that volcanic activity.

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#82120 - 22/09/2009 18:41 Re: Melbourne & Victoria day to day weather
mickyd Offline
Weather Freak

Registered: 18/04/2008
Posts: 324
Loc: Mitchelton
just heard on the tele reports of an earthquake in north east melbourne? anyone confirm this?

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#82121 - 22/09/2009 18:59 Re: Melbourne & Victoria day to day weather
bearinthere Offline
Weather Freak

Registered: 21/03/2006
Posts: 282
Loc: Berwick/Melbourne
felt something here in Berwick, very very short but was def a tremor

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#82122 - 22/09/2009 19:01 Re: Melbourne & Victoria day to day weather
petethemoskeet Online   content
Weatherzone Addict

Registered: 13/08/2003
Posts: 1256
Loc: toowoomba
3.0 on the richter scale

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#82123 - 22/09/2009 19:21 Re: Melbourne & Victoria day to day weather
Wolfcat Offline
Weather Freak

Registered: 26/11/2002
Posts: 552
Loc: Bentleigh East (third rock fro...
@petethemoskeet where did you get that info from?

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#82124 - 22/09/2009 19:27 Re: Melbourne & Victoria day to day weather
bearinthere Offline
Weather Freak

Registered: 21/03/2006
Posts: 282
Loc: Berwick/Melbourne
ditto wolfcat I have found zilch quite frustrating really was pleased there is talk of it or I would be thinking I overdid it on the curry tonight LOL

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#82125 - 22/09/2009 19:29 Re: Melbourne & Victoria day to day weather
Wolfcat Offline
Weather Freak

Registered: 26/11/2002
Posts: 552
Loc: Bentleigh East (third rock fro...
USGS and Geoscience Australia both have nothing...

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#82126 - 22/09/2009 19:32 Re: Melbourne & Victoria day to day weather
markm9 Offline
Weatherzone Addict

Registered: 09/03/2009
Posts: 1354
Loc: bris
They mentioned an earthquake or tremor around Melbourne on 'A Current Affair' in the last half hour, callers have confirmed this.

No news yet on the official readings?

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#82127 - 22/09/2009 19:35 Re: Melbourne & Victoria day to day weather
petethemoskeet Online   content
Weatherzone Addict

Registered: 13/08/2003
Posts: 1256
Loc: toowoomba
I heard it on the ABC radio 7pm news

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#82128 - 22/09/2009 19:35 Re: Melbourne & Victoria day to day weather
bearinthere Offline
Weather Freak

Registered: 21/03/2006
Posts: 282
Loc: Berwick/Melbourne
Nothing... confused

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#82129 - 22/09/2009 19:52 Re: Melbourne & Victoria day to day weather
hitbylightning Offline
Weather Freak

Registered: 31/12/2006
Posts: 308
Loc: Caroline Springs
Yep M3, looks like epicentre around Tooradin
GA Natural Hazards Map

USGS wont show it as their data only shows quakes outside of the US that are >M4.5

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#82130 - 22/09/2009 19:53 Re: Melbourne & Victoria day to day weather
markm9 Offline
Weatherzone Addict

Registered: 09/03/2009
Posts: 1354
Loc: bris
Residents of Melbourne's south-eastern suburbs are reporting that an earth tremor hit the area this afternoon.

Age reader Matthew Muir said the tremor hit Berwick about 6.21pm as "a rumble".

"[It] lasted around 15 seconds, and finish[ed] with a slightly louder, and felt, jolt," he said.

Readers from Narre Warren and Frankston also reported feeling the tremor.

"We heard large rumblings and felt [the] ground vibrate. It all ended with a loud bang," Rowena Esslinger from Narre Warren said.

Carrum Downs resident Larry Ma said that unlike other recent tremors "things were shaking up and down instead of going left and right".

Dozens of people took to online networking site Twitter to report the "earthquake", with Pakenham, Cockatoo and the Mornington Peninsula among the areas where it was reportedly felt.

Confirmation of the apparent tremor has been sought from Geoscience Australia.

More to come

http://www.theage.com.au/national/earth-...90922-g0du.html

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#82131 - 22/09/2009 20:16 Re: Melbourne & Victoria day to day weather
bearinthere Offline
Weather Freak

Registered: 21/03/2006
Posts: 282
Loc: Berwick/Melbourne
I swear it had nothing to do with the super hot curry I made for dinner :p

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#82132 - 22/09/2009 20:20 Re: Melbourne & Victoria day to day weather
bearinthere Offline
Weather Freak

Registered: 21/03/2006
Posts: 282
Loc: Berwick/Melbourne
geoscience just putting info up now

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#82133 - 22/09/2009 20:22 Re: Melbourne & Victoria day to day weather
Wolfcat Offline
Weather Freak

Registered: 26/11/2002
Posts: 552
Loc: Bentleigh East (third rock fro...
interesting

3.0 08:20:41 -38.200 145.300 0
2.6 08:20:28 -38.210 145.300 0

it was 2 quakes...

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