Fire, Flood, Pestilence ... and now an Earthquake!

Your simple solution to home security. Quickly view what’s happening at home when you're not there, giving you peace of mind.

Simple plug-in installation means you’ll be up and running in no time.

AFF Supporters can remove this and all advertisements

lovetravellingoz

Enthusiast
Joined
Jul 13, 2006
Messages
12,371
Solutions
1
Points
905
Seemingly a 6.0 earthquake NE of Melbourne


Evidently a 6. Centred near Mansfield. Second tremor was 4.
It was also the loudest that I have ever heard by far in Melbourne. Normally I just feel them. This one you very much heard as well.

From a Melbourne perspective it was the largest and longest tremor that I have felt

Isolated damage. But pretty much no damage in most locations.
ie Off Chapel St South Yarra

1632269831880.png

In that pic, the roof and supporting structure is new, and the new structure may not have been tied properly to the masonry wall at the top, allowing it to flex more in the tremor. Masonry walls are typically weak and need to be tied.
 
Last edited:

AisleSeat

Established Member
Joined
Nov 11, 2016
Messages
1,375
Points
565
At first I though a big truck was driving down my road, then realised what was happening. That was a big one! Someone on twitter posted a map of fault lines in Melbourne and I live right on top of one.
 

SydneySwan

Established Member
Joined
Jan 12, 2014
Messages
2,620
Points
820
Qantas
LT Silver
So it is not only civil society that is imploding in Melbourne then ..... ;)
 

MelMel

Member
Joined
Jun 9, 2019
Messages
237
Points
215
Evidently a 6. Centred near Mansfield. Second tremor was 4.
It was also the loudest that I have ever heard by far in Melbourne. Normally I just feel them. This one you very much heard as well.

From a Melbourne perspective it was the largest and longest tremor that I have felt

Isolated damage. But pretty much no damage in most locations.
ie Off Chapel St South Yarra

View attachment 259152

In that pic, the roof and supporting structure is new, and the new structure may not have been tied properly to the masonry wall at the top, allowing it to flex more in the tremor. Masonry walls are typically weak and need to be tied.
Interesting........I did wonder if that building was somehow compromised
 

lovetravellingoz

Enthusiast
Joined
Jul 13, 2006
Messages
12,371
Solutions
1
Points
905
So it is not only civil society that is imploding in Melbourne then ..... ;)

Epicenter pretty much in the middle of nowhere. 38km south Mt Buller. So up in the hills where it mainly just bush.

Only a tremor in Melbourne and in any regional town. Though one you certainly felt and heard.

1632270773829.png
 

lovetravellingoz

Enthusiast
Joined
Jul 13, 2006
Messages
12,371
Solutions
1
Points
905
Interesting........I did wonder if that building was somehow compromised

As per my pic and comment above:

In that pic, the roof and supporting structure is new, and the new structure may not have been tied properly to the masonry wall at the top, allowing it to flex more in the tremor. Masonry walls are typically weak and need to be tied.

But many possibilities. Masonry facades in earthquakes that fall often do so if not tied back to the structure properly. It may never have been tied (and in particular the top part of the wall may not have been tied if it was built up above the old roofline. The old ties may have corroded. Or the ties at the top where the new work may have been removed and not reinstated, or if so not reinstated adequately.

Or the wall may have had other flaws.

PS. I am an engineer.
 
Last edited:

moa999

Enthusiast
Joined
Jun 23, 2003
Messages
11,883
Solutions
1
Points
1,200
Masonry facades in earthquakes that fall often do so if not tied back to the structure properly. I

Similar comment on the Whirlpool forum.

Back in the newcastle earthquake, nearly all obvious failures involved early 20th century buildings – particularly parapets.

I worked on the odd parapet or 2, and ones that were supported back to the roof structure were fine, though cracked – ones that just sat by virtue of weight and lime mortar and aligned away from the epi centre fell onto the street below.

just relevant to that bit of damage I've seen so far – as opposed to the major structural failures that happened in newcastle.

I'd also bet pounds to peanuts that the geology of that local area is also sandy – thats where most damage of that nature happened in newcsatsle
 
Top