Qualla: Billy Mitchell (volcano)

Billy Mitchell (volcano): Introduction

Thu, 16 Apr 2026 00:00:00 GMT

In the mid-1550s, something happened in the tropical Pacific that ice cores drilled from the Law Dome in Antarctica still remember. Glass shards rained down onto what would become a polar archive, and temperatures across the Northern Hemisphere sagged noticeably for a year or two after. Tree rings recorded the chill. Climate historians have been trying to identify the culprit for decades. One strong suspect sits in the center of Bougainville Island, 14,000 kilometers from the ice that logged its handiwork: a broad pyroclastic shield now called Billy Mitchell, with a two-kilometer-wide caldera that holds a cold lake and one species of eel.

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Billy Mitchell (volcano): A Volcano Named for a Court-Martialed General

Thu, 16 Apr 2026 00:00:00 GMT

The name has nothing to do with Bougainville. William 'Billy' Mitchell was a U.S. Army brigadier general who spent the 1920s arguing, loudly and often insubordinately, that airpower would decide the next war. He sank captured German battleships with bombs to prove his point, feud...

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Billy Mitchell (volcano): The 1580 Eruption and the Cold That Followed

Thu, 16 Apr 2026 00:00:00 GMT

Billy Mitchell has erupted at least twice in the last thousand years - once around 1030 AD, once around 1580 AD give or take twenty years. Both eruptions registered a Volcanic Explosivity Index of 5 or 6, putting them among the largest events of the entire Holocene epoch in Papua...

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Billy Mitchell (volcano): The Lake in the Caldera

Thu, 16 Apr 2026 00:00:00 GMT

Today the crater holds a lake roughly three square kilometers in surface area, sitting at 1,013 meters above sea level with a maximum depth of 88.3 meters. The water is cool and clear, ringed by the steep inward walls of the caldera and fed by rainfall. Only one fish species live...

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Billy Mitchell (volcano): A Landscape of Sleeping and Waking Mountains

Thu, 16 Apr 2026 00:00:00 GMT

Billy Mitchell is not alone. The Emperor Range is a chain of volcanoes stretching across central Bougainville - Mount Balbi to the north, still venting sulphur and steam; Mount Bagana just to the south of Billy Mitchell, one of the most continuously active volcanoes in the entire...

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