Technical Earthquakes & Volcanoes

neilmny

One of Us
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Aug 12, 2013
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I'll bet you're not.
1632292892875.png
Crikey shook the snow off LBS :oops:
 
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Doonks

Let's cook!
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Jul 17, 2000
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'Victorian Alpine region' would have been more appropriate for the nation than 'Melbourne'.
I think lots of people who don't know the difference would only think of Mt Buller, Hotham or Falls if they said that. Is Licola/Woods Point really in the "Alpine Region"?
 
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IIRC we had a good one about a decade ago in Melbourne one evening. I remember being on the couch at home and it feeling like a gust of wind was blowing through because the doors all opened. Was centered in Korumburra IIRC
we were talking about this over dinner tonight. 2012 - was a fair shake but all I remember was thinking I shouldn't have opened the second bottle of wine then ski.com folks started posting about a tremor........
 
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POW Hungry

Old n' Crusty
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May 28, 2000
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The thing that has struck me about the main event (M5.9), was the amount of people in bed at 9:15am!
 

NeoSamurai

One of Us
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May 22, 2002
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If I retrace my steps I can probably find it.
There was one in Melb in early July - EC was in Epping (a 3?) I was lying on the lounge surfing net when (I initially thought) I felt a super heavy double dump truck full of boulders slowly drove down our small street - very 'rumbly' and then I realised it was a solid tremor. Only lasted about 6secs - not like this one.
 

Donza

Dogs body...
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The thing that has struck me about the main event (M5.9), was the amount of people in bed at 9:15am!
Lockdown lyfe
 

Donza

Dogs body...
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I was in a 7.7 in the pacific as a kid.
Was right after dinner. We were all sitting around the dinner table.
Watching the walls flex in the house (was Lockwood) was bizarre.
The movement was so severe that it feels like solids are liquid.
 
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neilmny

One of Us
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Aug 12, 2013
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While on the subject of volcanoes and earthquakes spare a thought for the poor buggers in Spain in the way of the lava flow. Jeez it's devastating when a bushfire burns a home down. Not to belittle that suffering by any means the land is still there to rebuild if possible. The lava flow is total wipe out. Once it covers a persons home and land that is the end of the story, totally unrecoverable.
 

echidna

Part of the Furniture
Ski Pass
Jun 16, 2003
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Melbourne

If you feel an earthquake
  • Drop to the ground.
  • Take cover by getting under a sturdy table or other piece of furniture.
  • Hold on until the shaking stops.
Our cat 3 hours later :

1632359239383.jpeg
 

neilmny

One of Us
Ski Pass
Aug 12, 2013
2,834
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363

If you feel an earthquake
  • Drop to the ground.
  • Take cover by getting under a sturdy table or other piece of furniture.
  • Hold on until the shaking stops.
Our cat 3 hours later :

1632359239383.jpeg
The old abundance of caution in play there ;)
 
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Sandy

Dark Sith Lord of the Pool Room
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Jan 1, 1998
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Yokohama, Japan, Melb. Expat.
I have very vague recollections of the Meckering quake which was 6.5.
That was a hell of a lot stronger than today’s quake.
Yup, Richter scale is log....so every time it goes up it's extreme


It's log10 scale.

e.g.
M6.9 is 10 times larger than a M5.9
The Japanese Tohoku earthquake in 2011 was a M9.1, which is 1000 times more powerful than a M6.1 (and >1580 times larger than the Vic quake yesterday!!)

In this case, M6.5 is just under 4 times larger than M5.9

Calculate here



The Richter scale – also called the Richter magnitude scale or Richter's magnitude scale – is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale".[2] This was later revised and renamed the local magnitude scale, denoted as ML .

Because of various shortcomings of the ML  scale, most seismological authorities now use other scales, such as the moment magnitude scale (Mw )
 

Claude Cat

On my bike
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We is the from? I cant figure out how to navigate the link Carveman shared.

Select recent earthquakes

1632370391245.png


And limit the results to Australia only.
 

Crystal

Sand skier extraordinaire
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Far far away Aussie expat
It's log10 scale.

e.g.
M6.9 is 10 times larger than a M5.9
The Japanese Tohoku earthquake in 2011 was a M9.1, which is 1000 times more powerful than a M6.1 (and >1580 times larger than the Vic quake yesterday!!)

In this case, M6.5 is just under 4 times larger than M5.9

Calculate here



The Richter scale – also called the Richter magnitude scale or Richter's magnitude scale – is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale".[2] This was later revised and renamed the local magnitude scale, denoted as ML .

Because of various shortcomings of the ML  scale, most seismological authorities now use other scales, such as the moment magnitude scale (Mw )
heheheheee I got the lecture yesterday. I share my office with an Academic who is a sedimentologist and flies all over the world doing drone surveys of volcanoes, active and asleep. very interesting.
 
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ScottGN

A Local
Ski Pass
Apr 14, 2010
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Plenty of activity around the globe this morning and afternoon.

I no next to nothing about earthquakes, but if I lived on a boarder of the pacific plate I'd be nervous for a few days I reckon
We get about 15,000 a year in and around NZ. 100-150 of them are large enough to be felt. If you were a worrier your nerves would well and truly be shot.
 

Claude Cat

On my bike
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Was awake for some reason at 4am and felt/heard this little 3.1 guy:

Reckon I felt a couple of those others that were on Monday.
So small that you think was that a quake or a car driving past ...
 
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Sandy

Dark Sith Lord of the Pool Room
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Yokohama, Japan, Melb. Expat.
F#$k!!!!! Big jolt here in Yokohama!!!!

15-20 sec. Big bump to start with. Maybe within 150km, M6.5 or more.
Ok, looks like only 35km from my place, M6.1

And only 20km from downtown Tokyo. Right in the port area of Chiba (eastern Tokyo), about 12km from Tokyo Disney, and 25km from both Haneda & Narita airports, mid way between.
 
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