Japan is certainly no stranger to major Earthquakes, but this one is the  
largest Japan or the surrounding area has ever recorded I think. 
 
The Northridge Quake, although 'only' at a 6.7, had one of the fastest  
ground accelerations ever recorded - at 1.7 Gs. 
 
As you can see from here, quakes of magnitude 8.5 or higher are very rare  
indeed:
_http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php_ 
(http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php) 
 
-William
 
 
 
In a message dated 3/11/2011 7:50:05 A.M. Eastern Standard Time,  
[email protected] writes:

This is  a major disaster for Japan, with tsunami affecting the  
Philippines.
Warnings have gone out to Gaum, Hawaii, Indonesia and the US  West Coast.

Early reports have it as an 8.9, by comparision the  Northridge EQ that his
the LA area in 1994 was a 6.7.  This equake is  about 100 times more
powerful.

On Fri, Mar 11, 2011 at 6:25 AM,  Lawrence Yates <yateslawrence@gma
il.com>wrote:

> I've just  heard that the BBC Philharmonic Orchestra (based here in
>  Mancheter)  who are on tour in Japan at the moment are safe after  the
> earthquake.  Apparently they were going across a bridge in  their coach 
when
> the earthquake struck.
>
>  Lawrence
>
>
>
> --
> Lawrenceyates.co.uk  <http://lawrenceyates.co.uk/>
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