| Note: | 02/12/1986 Ruptured sinter sheet, SE corner of Porcelain Basin. Occurred between 2-6 & 2-11-83.
Center of vent (26’) 7.9m from base of slope of old roadway.
Maximum height 3-6 meters.
Water drains into collapse pit of 1972 basin-wide disturbance at base of slope about 12m to the SW.
Maximum thickness of ruptured sinter is 12cm.
Water is turbid dark gray.
L 21 1/2” major rupture W 25’ 7.6m
33’8” 10-3m Vent 5’ 1.5m
Vent to south end of 71 blow-out 20.7m
Vent to drain at base of slope 50’ 15.2m |
