|Date/Time From:||2018-05-19 @ 2100|
|Date/Time To:||2018-05-19 @ 2135|
|Time Entered:||2018-05-21 16:00:04|
|Time Uploaded:||2018-05-21 16:00:04|
|Note:||I was present all day from about 10 a.m. Tom C., CB and Tara have more detailed descriptions of observations during the day. I stayed until 21:35, when it was too dark to see anything. If the report is correct that the major eruption was at 21:48, then here is the timetable for my observations. At about E-45 minutes, the activity had increased to the point that there was a surge from both the north and south vents about 60 feet high for about 10 seconds. The surge stopped and there was visible splashing from the north vent about 5-10 feet high and probably some splashing from the south vent. Splashing lasted a couple of minutes. Gradually, the surge from both vents increased in duration (but not in height) and the splashing shortened until about E-15 minutes, when the surge lasted for a couple of minutes and the splashing break only lasted about 15 seconds. The surge periods were so continuous that I wondered if I was experiencing a “weak” major eruption. The data from the seismographic data is probably correct recording the time of the major eruption at 21:48.|
All data is shown in US/Mountain timezone unless specified otherwise.
GeyserTimes.org is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".
If you have any questions or comments please contact: firstname.lastname@example.org
© Copyright 2011-2018