Kilauea’s recent eruptions are fed by two small reservoirs of molten rock (magma).
But the Kilauea volcano also taps a deeper source, because the shallower magma chambers are too tiny to account for all of the lava that has streamed across the island’s surface since 1983.
One reservoir sits less than 1.2 miles (2 km) beneath Halema’uma’u Crater, where a bubbling lava lake emerged in 2008. The other reservoir is slightly deeper and larger, and rests about 1.2 to 2.4 miles (2 to 4 km) under the caldera’s south rim.
And double the trouble! Hawaii’s big, booming eruptions are born from just under Kilauea volcano’s peak…
Link: Double the Trouble Found Under Hawaii’s Kilauea Volcano via www.livescience.com
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