The photographic and smoked paper seismograms kept on store in the BSL seismogram archive are gradually deteriorating over time and scanning of the seismograms into a computer readable format is essential if they are to be preserved for the future. BSL has a wide format scanner and whenever the opportunity and funding allows we make an effort to scan seismograms.
Berkeley Seismological Laboratory
215 McCone Hall, UC Berkeley, Berkeley, CA 94720-4760
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