A gradual temperature increase of the crater lake water from normal, i.e. 32° - 33° C, was recorded since the last week of August 1973. The estimated"critical" temperature, i.e. around 40°C, was reach ed on November 5, 1973. Since then the water temperature fluctus ted between 38° C and 40°°c until approximately the end of Janua ry 1974. On January 31 a temperature of 41° C was measured,…
Volcanism is one of nature’s primal spectacles. It commands our attention, whether for its awesome power, its danger, or its beauty. The years 1975-85 brought dramatic examples of volcanism – from the 1980 blasts of Mt. St. Helens, through the continuing lava river of Hawaii, to the tragic eruption of Colombia’s Nevado del Ruiz in 1985 and these have been abundantly documented by the news…