Recent Helicorder Displays
SDMD HHZ LD : SDMD Vertical Component, Global Events
SDMD HHE LD : SDMD East-West Component, Global Events
SDMD HHN LD : SDMD North-South Component, Global Events
SDMD HWZ LD : SDMD BandPass Vertical Component, Local Events
SDMD HWE LD : SDMD BandPass East-West Component, Local Events
SDMD HWN LD : SDMD BandPass North-South Component, Local Events
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