| Comments: | While River was off, 1836 UM loud huff and heavier steam from Main Vent. 1845 MV splash. 1847 River on. 1850 continued MV splashing. 1853 River Pause. 1901 first large MV splash into East. 1093 River on (first pause d=10m). Continued MV splashing (almost continuous) 1912 River pause. 1918 more MV splashes into East Vent. 1921-1930 Bottom Vent erupting. 1934 River on (second pause d=22m). 1943 G on. 1948 A on. Water levels were unimpressive at first but began to pick up around 1953. High tried to go into lock, but could not sustain it. At 2000, first water and push from Upper Mortar. It had 4 big pushes between 2000 and 2003. First 2 pushes, High died down after UM surged. At 3rd push, High continued 4-6'. 2003 start. First pause 2022. Last water 2036. |