Drought slowing Old Faithful geyser
Thursday, June 5, 2008 - 12:28
in Earth & Climate
New research suggests that several years of drought may have added a minute or two to the eruption cycle of Old Faithful geyser. The geyser used to erupt about every 61 minutes. That cycle lengthened to more than an hour and 15 minutes following earthquakes in 1959, 1975 and 1983.