Have received surface waves in the period area
of 17 to 20 seconds.
Quite large since theu must be 20 to 40 DB
larger in amplitude than the initial P wave ?


On 2/2/2012 2:21 PM, Thomas Dick wrote:
> On 2/2/2012 7:53 AM, Geoffrey wrote:
>> What I did was put an aluminum ground plane on
>> top of a 7 foot pvc pipe then mount the
>> GPS unit to the ground plane then place the pole
>> beside the computer then make sure the
>> ground plane was level with a small
>> bubble level thingy.
>> The GPS sits maybe 7 feet higher
>> than the floor above most human activity.
>> has functioned well since then.
>>
>> Wow, as i type this a new teleseismic wave arrived
>> at this location.
>>
>> P 13:47:52 2012FEB02 UTC
>>
>> Interesting option Geoff. I am an amateur radio operator. I understand
>> what you are saying. Wish I had this tip years ago....I looked at my
>> setup seismic units when I got it seconds ago and the Vanuatu quake
>> hadn't started yet...
> 
> __________________________________________________________
> 
> Public Seismic Network Mailing List (PSNLIST)
> 
> To leave this list email PSNLIST-REQUEST@.............. with the body of
> the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
> 
__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.