PSN-L Email List Message

Subject: Re: clock pendulums
From: Pete Rowe ptrowe@.........
Date: Fri, 11 Mar 2011 11:59:56 -0800 (PST)


Hi Bryan
Welcome to the group. You will find many interesting an talented folks here. Where are you located? Tell us how you are monitoring the period of the clock. What is your sensor? What do all the different color lines mean?
I find this fascinating and I'm sure there are others who feel the same.
Keep ticking
Pete Rowe, San Jose, CA

--- On Fri, 3/11/11, Bryan Mumford  wrote:

From: Bryan Mumford 
Subject: clock pendulums
To: PSNLIST@..............
Date: Friday, March 11, 2011, 11:10 AM

I have just joined your list to learn a little more about seismic monitoring. I though you might have an interest in my "left-handed" experience with seismic activity. I measure clock pendulums, which can act as seismometers. The recent Japanese quake registered on two clocks I happened to be monitoring last night.

See:
http://www.bmumford.com/mset/courthouse/earthquake/index.html

I would be happy to learn why there is a second disturbance in my data at 10:39 PM. Was this a slower type of seismic wave, or an aftershock?

Am I seeing the P wave, or an S wave, or what?

-- 
Bryan Mumford
__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with the body of the message (first line only): unsubscribe
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Hi Bryan
Welcome to the group. You will find many interesting an talented folks here. Where are you located? Tell us how you are monitoring the period of the clock. What is your sensor? What do all the different color lines mean?
I find this fascinating and I'm sure there are others who feel the same.
Keep ticking
Pete Rowe, San Jose, CA

--- On Fri, 3/11/11, Bryan Mumford <ng1@............> wrote:

From: Bryan Mumford <ng1@............>
Subject: clock pendulums
To: PSNLIST@..............
Date: Friday, March 11, 2011, 11:10 AM

I have just joined your list to learn a little more about seismic monitoring. I though you might have an interest in my "left-handed" experience with seismic activity. I measure clock pendulums, which can act as seismometers. The recent Japanese quake registered on two clocks I happened to be monitoring last night.

See:
http://www.bmumford.com/mset/courthouse/earthquake/index.html

I would be happy to learn why there is a second disturbance in my data at 10:39 PM. Was this a slower type of seismic wave, or an aftershock?

Am I seeing the P wave, or an S wave, or what?

--
Bryan Mumford
__________________________________________________________

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.


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