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Submit an eruption

You can enter eruption times for geysers.

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To contribute data, a GeyserTimes account is required. If you don't have a GeyserTimes account, you can sign up to GeyserTimes for free.

Data required to submit an eruption​

To enter an observed eruption, you need the following information:

  • the name of the geyser,
  • the date and time of the eruption,
  • the time accuracy of your observation, i.e.,
    • exact, if you observed the eruption from the start,
    • near start, if you observed the eruption within a minute of the start,
    • in eruption, if you observed the eruption, but not from the start,
    • electronic, if the eruption was determined from monitoring data (e.g. temperature logger or seismometer),
    • approximate, if you observed the eruption, but did not note the exact time and therefore approximate it, or if you infer an eruption from post-eruptive activity (e.g. for overnight eruptions),
  • (optionally) the duration of the eruption,
  • as required additional labels, i.e.,
    • the webcam label, if you observed the eruption on a webcam,
    • the initial label, if you observed the first eruption of a series at a geyser known to erupt in series (e.g. Lion),
    • the questionable label, if you think an eruption occurred, but aren't sure,
    • the major or minor label (or the long or short label for Old Faithful), if you observed such an eruption at a geyser that has multiple eruption types (e.g. Castle),
  • (optionally) additional information for Grand, i.e.,
    • the delay code, i.e.,
      • D# with the number representing the number of Turban eruptions after the delay, if the interval between Turban eruptions was 25m or greater,
      • V# with the number representing the number of Turban eruptions after the delay, if Vent overflowed, but Grand didn't start even though it was time for Turban or Turban started,
    • the start type, i.e. Grand or Turban, depending on whether Grand or Turban initiated the eruption,
    • the number of bursts,
    • the star label, if the second burst lasted 1m15s or greater,
    • the pound label, if the third burst lasted 1m15s or greater,
    • the end type, i.e. Continue or Quit, depending on whether Vent and Turban continued or quit after the eruption of Grand,
    • the number of afterbursts,
  • the observer(s) of the eruption, assumed to be you, the entrant, if left empty, and,
  • (optionally) a comment.
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Contributed data will be licensed under the Open Database License 1.0 and the Database Contents License 1.0.

Submit an eruption​

  • Visit GeyserTimes with your browser.
  • Log in to your account.
  • In the top toolbar, click Enter.
  • In the tabs, click Add Eruption.
  • Enter the data into the form.
  • Click Submit.