Older volcanoes erupt less often but when they do it is larger and more dangerous, researchers say

Volcanic activity is difficult to predict, even when it is closely monitored. But researchers now believe a crater’s age might offer clues, with older volcanoes producing less frequent but larger and more dangerous eruptions. They gave the example of Mount St. Helens in the US, which became active 40,000 years ago but its last eruption … Read more

Older volcanoes erupt less often but when they do it is larger and more dangerous, researchers say

Volcanic activity is difficult to predict, even when it is closely monitored. But researchers now believe a crater’s age might offer clues, with older volcanoes producing less frequent but larger and more dangerous eruptions. They gave the example of Mount St. Helens in the US, which became active 40,000 years ago but its last eruption … Read more