Jackson Currie from USGS trims the ends of the sparker while Bran Black and Tim Kane from OSU observe. Salt water erodes the electrodes at the ends of the sparker and they must be trimmed every few hours to ensure accurate data collection.

Jackson Currie from USGS trims the ends of the sparker while Bran Black and Tim Kane from OSU observe. Salt water erodes the electrodes at the ends of the sparker and they must be trimmed every few hours to ensure accurate data collection. Image courtesy of San Andreas Fault 2010 Expedition, NOAA-OER.

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Related Links

San Andreas Fault 2010

San Andreas Fault 2010: September 25 Log

NOAA Ocean Explorer Gallery