Ehm, 



no hurricane here in Hawaii, a bright sunny day in fact.



What it may be is the volcano causing what you see on the Kipapa station.
 I know there has been a bit of extra activity lately, described as long
period small quakes.  Another station here which is also showing activity
is the Poha station, http://aslwww.cr.usgs.gov/Seismic_Data/telemetry_data/POHA_24hr.html
..  The volcano's daily status can be checked at  http://hvo.wr.usgs.gov/kilauea/update/main.html
 One key phrase from today's bulletin is "Kilauea is really jumping".



My own geophone seismometer isn't showing anything untoward - http://www.iasmith.com/realtime.htm
- but my experimantal tiltmeter is picking up similar traces to those seen
at Kipapa and Pahoa stations.



Could be interesting...



Ian Smith



Mark Robinson wrote:


  

    
FYI,,   I noticed a strangeness in the background noise today as I was

    
    
checking my

    

      
traces, so I did an FFT and discovered that they had a period of about 8
seconds,,   as compared to the n
ormal 4.5 to 5.5 that I've noticed over

      
      
the years

      

        
for Northern California!    Anyone have any idea why????    Could this be

        
        
caused

        

          
by the hurricane,, or is something else going on???   I verified that it

          
          
was not

          

            
my machine by checking with the Berkeley "make your own seismogram" link!!

http://quake.geo.berkeley.edu/bdsn/make_seismogram.
html

I haven't noticed such long period microseisms before,,,   perhaps I just

            
            
wasn't

            

              
looking??

  Stephen
  PSN Station #55
  near Pilot Hill Ca
  38.828N  120.979W

              
              

Hurricane huh, must be hitting Hawaii pretty hard, have a quick look at LISS
http://aslwww.cr.usgs.gov/Se
ismic_Data/telemetry_data/KIP_24hr.html before
it expires or at a cached version at
http://203.79.120.108/hawaii.200205302156.gif

Mark

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