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Add New Seismogram

Network Details


earliest FDSN Code in use for the station (use SS if not associated with a network)



network to which the station belongs (e.g. WWSSN, GSN, EREBUS)


Station Details


station's code in the International Registry (ISC)



city, state/province, and country (e.g. Albuquerque, New Mexico, USA)



longitude using WGS84 datum (value must be float between −180 to 180)



latitude using WGS84 datum (value must be float between −90 to 90)



elevation above (+) or below (-) sea level (in meters)



date when station was opened



if closed, Date when station was closed. Leave empty if still operating or not known


Location Details





type of sensing instrument (e.g. Streckeisen STS-2, Ewing, Beniof)






depth below ground surface at specified longitude and latitude (in meters)



date when sensor was installed


Seismogram Details


country, state or province, city, institution, room of original analog document when scanned



ground motion up = up on paper or down on papers



the time of the first sample in the image



the time of the last sample in the image



any time correction applied to the data






information about source of metadata entered - e.g., lat/lon adopted from a published source, or response assumed based on X information or publication



date and time when the metadata was created or last updated


Channel Details


channel code as in SEED format



the free period of the instrument



the instrument's damping constant



manufacturer's serial number of seismometer if known









manufacturer's serial number if known



period at which the gain is valid



Mechanical (e.g., Wiechert) or electromagnetic (e.g., Golitsyn)



paper speed (linear velocity of paper) (in meters/s)



length of the writing arm, from its rotating axis to the the tip of the needle (in meters/s)



radius of the drive cylinder bearing the smoked paper (in meters/s)



distance from the rotating arm axis to the driving cylinder axis (in meters/s)



shift of the arm axis to the base line on the smoked paper (in meters/s)



length of 1 minute on paper (in meters/s)


Image Details


Choose the scanned image file to upload



date the image was scanned



DOI if one has been assigned



room, institution, city, state/province, and country of original analog document when scanned



resolution of the scanned image in DPI/PPI







length (float) of the analog document (in cm)



width (float) of the analog document (in cm)



indicate if phase notations were placed in the image



earthquake phases are present on image. phases were reported to a bulletin or otherwise published



indicate true if tears or other flaws obscure trace data



original recording type



scale or gain factor (scaler)



indicate true if an earthquake signal is present



positive reel to indicate length of vertically offset timemarks, negative reel to indicate length of gapped timemarks, null to indicate no timemarks



indicate whether the trace in the image has been vectorized






contact information for the original owner of the data


CDWP Image











0 = Front, 1 = Back









defined as pendulum free period



defined as galvanometer free period



image filename





CDWP Location