Am sure if I go back another couple hundred million years back from Wah Wah I could find a bigger one. But what the hell..
You will note that the mention of the “not” natural comment has stimulated discussion on this thread. All I got to say about that is..
REALLY?
Am sure if I go back another couple hundred million years back from Wah Wah I could find a bigger one. But what the hell..
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Wah Wah Springs was the largest know eruption in 4.5 billion years.
The Siberian Traps (the area is covered by about 7 million km2 - 3 million sq mi of basaltic rock, with a volume of around 4 million km3 - 1 million cu mi ;
The Deccan Traps (lava flows is estimated to have been as large as 1.5 million km2 - 0.58 million sq mi, approximately half the size of modern India over a million years) might have been larger - but may have just been the volume of lava flow and that they erupted for 100ds of years. These two events were basalt flows (like Hawaii), not explosive events.