As was suggested, the early issues of The Sput contain a bit of info about Oblong erupting in series. The following is from 1988 (I failed to check just which issue -- sorry): Oblonq -- Enjoyably Erratic Oblong is typically ranging from 24 to 48 hours between eruptive episodes. The average interval is likely near 30 hours. I say"episodes" because when there is one eruption, there may be a second and third. As seen in 1986-87, the interval between the first and second play is typically around 2-2 1/2 hours; the next interval, when it happens (and it usually does not) is of 28-42 minutes. Interestingly, the majority of eruption series have occurred near the time of something by Giant, and is therefore believed to serve as something of an indicator worth watching for. Scott Bryan -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20110610/f8a67177/attachment.html>