U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > U.S. Forums > New York > New York City
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
 
Old 11-27-2014, 04:51 AM
 
Location: Manhattan
20,134 posts, read 26,416,255 times
Reputation: 9029

Advertisements

Quote:
Originally Posted by bill83 View Post
What type of structures are most vulnerable to earth quakes? Any engineers here?
Structures?
It was been shown tat "wiggly ones" survive...those that can bend. FOr example in the SF quake of 1906, wooden shacks stood undamaged but square blocks made of stone were destroyed. Those with the fewest constraints on motion are best. Steel wiggles, stone doesn't. Trouble is that new steel and glass structures might stand but lose their glass in a shower of death to those on the street.


Those on landfill and sandy soils, those who depend on long pilings that do not reach bedrock are most vulnerable to total destruction.

Good bedrock exists (mica-schist) in the Financial district and the Midtown to North Manhattan but the area between is fill and soft ground and these areas resist earthquake damage well but soft Earth will "liquefy" when shaken and turn pudding-like. That's why there are no sklyscrapers in Soho or the Village or Chelsea (or their shouldn't have been but developers are getting greedier and greedier.)

Here's a nice cutaway showing the bedrock.
Needless to say the communities on new landfill, might be MOST vulnerable. Perhaps Battery Park City might not have been the brilliant stroke it was advertised to be.

I recall the Ramapo Fault did a 3.5 quake about a decade ago (or two) but it was barely felt in NYC. Of course the MAJOR damage that might occur would be rupture of containment at Indian Point up the Hudson a bit.

Last edited by Kefir King; 11-27-2014 at 05:08 AM..
Quick reply to this message

 
Old 11-27-2014, 08:40 AM
 
9,316 posts, read 13,844,848 times
Reputation: 9354
I wonder if concrete "floats" on liquified ground.
Quick reply to this message
 
Old 11-27-2014, 09:53 AM
 
Location: Sugarmill Woods , FL
6,235 posts, read 5,386,899 times
Reputation: 13586
Quote:
Originally Posted by gottaq View Post
The ramapo fault line is one of the largest faults along the east coast, and is in the NYC area. Scientists say it could cause a major quake at some point. Should NYC metro area be worried??
Why worry? If you ARE worried your ONLY choice is move!
Quick reply to this message
 
Old 11-27-2014, 01:36 PM
 
Location: Manhattan
20,134 posts, read 26,416,255 times
Reputation: 9029
Quote:
Originally Posted by nybbler View Post
I wonder if concrete "floats" on liquified ground.
Nope, no more than it would float on mud.
Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


 
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:


Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > U.S. Forums > New York > New York City
Similar Threads
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2018, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top