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Old 04-04-2010, 08:19 PM
 
Location: Hookerville, formerly in Tweakerville
15,129 posts, read 32,350,023 times
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USGS upgraded it to a 7.2. It's on their website, and the news.
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Old 04-04-2010, 08:32 PM
 
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What happens to the ocean water in all this? I saw a youtube of a swimming pool during this quake which was cool. Tsunami happens when the quake originates in the ocean floor but what if a quake happens inland?
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Old 04-04-2010, 08:46 PM
 
Location: San Diego, California Republic
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Quote:
Originally Posted by bloom View Post
What happens to the ocean water in all this? I saw a youtube of a swimming pool during this quake which was cool. Tsunami happens when the quake originates in the ocean floor but what if a quake happens inland?
In this type of quake, not much really.
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Old 04-04-2010, 08:48 PM
 
Location: San Diego
5,319 posts, read 8,990,328 times
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washingtonpost.com (http://www.washingtonpost.com/wp-dyn/content/article/2010/04/04/AR2010040402544.html - broken link)

Quote:
The U.S. Geological Survey, or USGS, originally measured the quake as 6.9 but later raised it to 7.2, a magnitude that can cause serious damage to urban areas. It also revised the depth of the quake to 6.2 miles from 20 miles.
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Old 04-04-2010, 08:50 PM
 
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Quote:
Originally Posted by moved View Post
It was upgraded from 6.9 to 7.2, NOT 7.9.
I was responding to the person's question about the NORTHRIDGE quake, from what I recall, NOT today's.
NOT NOT NOT...lol
Please read the quote above my post that I included with my post, for clarification. As I said, I don't know the depth of that one, but today's we do know the depth of-it was 20 miles. Right?
Anyway, did not google the northridge for exact details...
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Old 04-04-2010, 09:10 PM
 
Location: SoCal
6,420 posts, read 11,603,419 times
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Quote:
Originally Posted by bloom View Post
How does this one compare to the Northridge (LA area) one?
I happened to be in Northridge during their 5.1 aftershock. No comparison to what we felt this afternoon in Poway during the 7.2. In Northridge, we almost couldn't stand up.
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Old 04-04-2010, 09:11 PM
 
Location: SoCal
6,420 posts, read 11,603,419 times
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The 7.2 earthquake outside Mexicali was 10 km deep according to the USGS site, not 20 miles deep as some here have said. 10 km = 6.6 miles approximately.
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Old 04-04-2010, 09:20 PM
 
Location: San Diego CA
8,499 posts, read 6,908,457 times
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Noted an aftershock in Mission Valley just now, table, computer shaking.
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Old 04-04-2010, 09:30 PM
 
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Yep, we sure did just have an aftershock. My heart races every time!
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Old 04-04-2010, 09:35 PM
 
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Quote:
Originally Posted by oddstray View Post
I happened to be in Northridge during their 5.1 aftershock. No comparison to what we felt this afternoon in Poway during the 7.2. In Northridge, we almost couldn't stand up.
I meant how was the Northridge one felt down here in SD compared with this Mexicali one?

Obviously I was not equating an epicenter to a 100 mile+ distance away.
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