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Old May 24th, 2015, 10:45 PM   #2221
fordgtman1992
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I agree Indica, it's hard to get shots while driving down 110. Here are my attempts during Friday's rush hour:





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Old May 25th, 2015, 04:54 AM   #2222
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Thanks for the photos - just please don't have an accident taking pics of the building.
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Old May 25th, 2015, 05:04 AM   #2223
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Funny that this building I think appears in the upcoming movie San Andreas, half built and collapsing in an enormous earthquake in Los Angeles.
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Old May 25th, 2015, 05:33 AM   #2224
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Today May 24, 2015

Wilshire Grand by HunterKerhart.com, on Flickr
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Old May 25th, 2015, 05:34 AM   #2225
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May 24, 2015

Wilshire Grand by HunterKerhart.com, on Flickr


Wilshire Grand by HunterKerhart.com, on Flickr
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Old May 25th, 2015, 05:36 AM   #2226
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May 24

Wilshire Grand by HunterKerhart.com, on Flickr
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Old May 25th, 2015, 05:37 AM   #2227
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May 24

Wilshire / Grand by Ryan Dravitz, on Flickr
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Old May 26th, 2015, 06:08 AM   #2228
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May 24, 2015

2015-05-25_WilshireGrand - 05 by Ryan Dravitz, on Flickr

2015-05-25_WilshireGrand - 06 by Ryan Dravitz, on Flickr

2015-05-25_WilshireGrand - 07 by Ryan Dravitz, on Flickr

2015-05-25_WilshireGrand - 08 by Ryan Dravitz, on Flickr

2015-05-25_WilshireGrand - 02 by Ryan Dravitz, on Flickr
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Old May 27th, 2015, 03:27 PM   #2229
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Can't believe the glass is already going up! How exciting!
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Old May 27th, 2015, 03:32 PM   #2230
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As a New Yorker, I'm curious, what would happen if an earthquake hit downtown LA and ripped the ground beneath one of these buildings open by a width of say a foot? Would the building collapse? Would they have to tear the whole thing down? Or what if one side of the ground was lifted up into the air and the other drops a couple of feet?

Or do they have some clever tricks to prevent that or is downtown LA far enough away from the fault lines for that not to really be a threat?
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Old May 27th, 2015, 05:18 PM   #2231
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As far as i know there has never been a 7 or 8 quake that had a surface rupture in the middle of tall buildings anywhere. Even Japans 9.0 was 200 miles from Tokyo. Had it been directly under it then the outcome would have been another story. Alaska,s 9+was under a city with major ground ruptures and severe damage but there were no tall buildings there.
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Old May 27th, 2015, 06:51 PM   #2232
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The faults in Southern California don't "open up" ... they slide against each other ... so you'd have one side slip a foot or more ...
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Old May 27th, 2015, 06:53 PM   #2233
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Quote:
Originally Posted by Kenni View Post
Funny that this building I think appears in the upcoming movie San Andreas, half built and collapsing in an enormous earthquake in Los Angeles.
The San Andreas fault can't produce the kind of quakes and tsunamis seen in the movie trailer. Its not a subduction fault its a strike-slip fault. So there's no way for the plate to thrust upwards to displace the water to create a tsunami. The movie's geology is a total joke.
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Old May 27th, 2015, 07:36 PM   #2234
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Quote:
Originally Posted by Riley1066 View Post
The San Andreas fault can't produce the kind of quakes and tsunamis seen in the movie trailer. Its not a subduction fault its a strike-slip fault. So there's no way for the plate to thrust upwards to displace the water to create a tsunami. The movie's geology is a total joke.
It's the movies. What do you expect. Remember the movie 10.5 At the end when they were running away from the earth opening up behind them. As if it were chasing them.
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Old May 28th, 2015, 01:11 AM   #2235
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The San Andreas fault is a strike slip fault...that much is true. But the LA area is home to many other fault lines and they are not all the same.

The Northridge Quake is a good example of a blind thrust earthquake, different from what the San Andreas would produce.

The closest known major fault line to DTLA is probably the Puente Hills Fault, which is also a blind thrust fault. It runs from just south of Griffith Park and travels southward about 25 miles. It has the potential to produce up to an 8.0M quake and would probably be much more catastrophic to the residents of LA than a quake on the San Andreas.

Due to the sedimentary nature of the LA basin, there may very well be dormant fault lines just waiting to jolt and we wouldn't even know it until one hit. Hell, even the Puente Hills Fault wasn't discovered until 1999, which is nearly 30 years after it caused the Whittier Narrows Quake.
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Old May 28th, 2015, 03:43 AM   #2236
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Quote:
Originally Posted by NativeOrange View Post
The San Andreas fault is a strike slip fault...that much is true. But the LA area is home to many other fault lines and they are not all the same.

The Northridge Quake is a good example of a blind thrust earthquake, different from what the San Andreas would produce.

The closest known major fault line to DTLA is probably the Puente Hills Fault, which is also a blind thrust fault. It runs from just south of Griffith Park and travels southward about 25 miles. It has the potential to produce up to an 8.0M quake and would probably be much more catastrophic to the residents of LA than a quake on the San Andreas.

Due to the sedimentary nature of the LA basin, there may very well be dormant fault lines just waiting to jolt and we wouldn't even know it until one hit. Hell, even the Puente Hills Fault wasn't discovered until 1999, which is nearly 30 years after it caused the Whittier Narrows Quake.
To get a 8.0 you need 2 or 3 hundred miles of rupture. The 6.7 Northridge quake rupture started at a depth of 17.5 kilometers beneath the valley and propagated upward and to the northwest and terminated at a depth of 5-6 kilometers. The entire rupture covered 15 to 20 kilometers.
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Old May 28th, 2015, 07:59 AM   #2237
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5/27/2015
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Old May 28th, 2015, 08:03 AM   #2238
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[QUOTE=Kelbeen;124338469]5/27/2015
Taken by me


It won't be long before most of the view from this angle is blocked by the podium building.
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Old May 28th, 2015, 09:04 AM   #2239
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Quote:
Originally Posted by 10064 View Post
To get a 8.0 you need 2 or 3 hundred miles of rupture. The 6.7 Northridge quake rupture started at a depth of 17.5 kilometers beneath the valley and propagated upward and to the northwest and terminated at a depth of 5-6 kilometers. The entire rupture covered 15 to 20 kilometers.
Yes, the Northridge event only ruptured the western portion of the San Fernando Valley, but SoCal geologists are actively gathering lots of data that sheds new light on the prospects of compound rupturing.

The entire San Andreas Fault Zone is like web of fractured, woven, broken glass. It's not uniform, and impossibly complex. There are hundreds of faults, both known and not, that may rupture at any time.

NativeOrange would have been more accurate to say that the Puente Hills blind thrust fault could be incorporated in a multi-fault compound rupture that together would release enough energy to produce a M 8.0 event. The fault itself cannot release anywhere near enough energy to achieve that magnitude, but it wouldn't be a stretch if it slipped with several others simultaneously as part of a complex compound rupture.

Oh, and this is not exactly accurate either:
Quote:
Originally Posted by 10064 View Post
As far as i know there has never been a 7 or 8 quake that had a surface rupture in the middle of tall buildings anywhere. Even Japans 9.0 was 200 miles from Tokyo. Had it been directly under it then the outcome would have been another story. Alaska,s 9+was under a city with major ground ruptures and severe damage but there were no tall buildings there.
The Moment Magnitude scale is a measurement of the amount of energy released in a seismic event, not the ferocity of the earth's shaking. M 9.0+ megathrust subduction quakes displace an enormous amount of earth, and in so doing can shake in excess of 10 minutes, but no more fiercely than other shallow events. The M 9.5 Valdivia event ruptured several thousand miles along its plate boundary, and is the largest such rupture ever known, but it may surprise you to know that the highest instrumentally recorded peak ground acceleration (the force of shaking, measured in G-force) EVER... occurred in SoCal's own M 6.7 Northridge blind thrust event.

With very few exceptions, most all subduction zones exist offshore, where the subducting plate dives beneath the continental shelf of that overlapping it into the mantle. So the reality is that basically no such boundaries exist near major cities. Because they occur a distance offshore, the true threat of the M 9.0+ megathrust quakes are never the shaking, and always the tsunami caused by the water displaced above the rupture. The tsunamis are always far more devastating than the shaking, especially if they create an oceanwide wave; damages and loss of life reach their peak if the wave hits multiple continental shores, like both the the M 9.1 Sumatra and M 9.2 Alaska quake tsunamis did.

---

I really dislike this tangent though. It is well documented that the Wilshire Grand is built to code, and is going to easily withstand any seismic event the region is going to throw at it. I'm very excited to see this building rising. Let's try not to keep getting distracted by things we've already known for a long time.
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Old May 28th, 2015, 04:09 PM   #2240
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Love this shot, thanks Kelbeen. This is 7th or 8th street? I can't remember.

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