Are you older than this lake?

If you were born before summer 1991, the answer is yes. Before 30 years ago, Lake Pinatubo was just a rumble in Mount Pinatubo's magma-filled belly. But here, on the Philippines’ main island of Luzon, there was a calamitous eruption on 15 June 1991 - one of the 20th century's most powerful. It destroyed Pinatubo's original summit and formed a vast crater, which gradually filled with water as greenery reclaimed the summit.
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