What’s more, some of these hot spots have been linked to vast eruptions that have covered large areas with lava, Coffin said. These larger eruptions, in turn, are suspected of having something to do with some of the greatest mass extinctions in the history of life on Earth.

The team found eruption peaks at 10, 22, 30, 40, 49 and 60 million years ago. They also found a secondary series of eruptions at four, 15, 34, 45 and 65 million years ago. Analyzing those dates suggests a main eruption pulse period of approximately 10 million years, with a secondary period of about five million years.

Uh oh ;)

Source: Earth’s Pulse Felt at Hot Spots

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