Pinatubo Lake and Occam's Razor

THE active Mount Pinatubo volcano is located in the mountain range of Zambales. It erupted in June 1991 after more than 600 years of dormancy as many volcanologists and geologists tell us. Its geological history was relatively unknown until it became active and eventually erupted.

The massive eruption of Pinatubo is considered to be "the second largest terrestrial eruption of the 20th century, after the 1912 eruption of Novarupta in Alaska. Mount Pinatubo emitted 10 billion tons of lahar and 20 million tons of sulfuric acid (CO2) depositing minerals and toxic metals into the environment."