| Comments: | "Electronic data shows that pool water temperature rose from 100 F to 142.5 F and soil temperature from 76 F to 147 F within two minutes. The pool water thermistor leveled off at about 124 F within six minutes then slowly declined to 122 F eighteen minutes after the eruption. The soil declined steadily to its original temperature in about an hour. On-site inspection at 1650 showed the #1 and #3 soil thermistors washed away with the pool probe wire moved. The area was coated with an olive-gray silty clay a few millimeters thick and abundant scattered fragments of silicious microbial mat." |