Probably the current tropical storm "Rick", off the west coast of Mexico
which was downgraded
from hurrican status.

Meredith
On Wed, Oct 21, 2009 at 7:57 PM, Barry Lotz wrote:

>
> To all
> Related to instrument quality- maybe. I have noticed a lot more
> microseismic activity the last few days. The background noise on my vertical
> is around +/- 300 counts @  8.7 sec  and 6.6 sec  (two narrow peaks). I
> don't remember this magnitude in years past. I'm sure it is weather related.
> I live about 200 miles east of the west coast of northern California. Anyone
> else noticed an increase in background lately? Every time I look at the
> output I think I'm looking at surface waves after an event.
> Barry
>
>
Probably the current tropical storm "Rick", off the west coa=
st of Mexico which was downgraded
from hurrican status.

Meredith

On Wed, Oct 21, 2009 at 7:57 PM, Barry Lotz <barry_lotz@sb=
cglobal.net> wrote:






To all
Related to instrument quality- maybe. I ha=
ve noticed a lot more microseismic activity the last few days. The backgrou=
nd noise on my vertical is around +/- 300 counts @=A0 8.7 sec=A0 and 6.6 se=
c=A0 (two narrow peaks). I don't remember this magnitude in years past.=
 I'm sure it is weather related. I live about 200 miles east of the wes=
t coast of northern California. Anyone else noticed an increase in backgrou=
nd lately? Every time I look at the output I think I'm looking at surfa=
ce waves after an event.

Barry