Hi all,

John Cole...I noted your seismogram with the "Hrubetz
experimental vertical" on the PSN quake files; of Jan 30th
2002.  It seems to have a strong sensor (?), or the gain
was high?

Any kind of description of the seismometer....just to
give some kind of curiosity whetting?  Couldn't find
anything right off on a web search of the "Hrubetz".

Thanks, Meredith




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