Rivers of glowing lava are oozing from the world's largest active volcano and could swallow the main highway linking the east and west coasts of Hawaii island.
2/19
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People watch the Mauna Loa volcano Thursday near Hilo.
3/19
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People use light from their phones to find their way along a trail after viewing the Mauna Loa volcano, as cars sit in traffic along Saddle Road, right, Thursday.
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People watch and record images of lava from the Mauna Loa volcano Thursday.
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People watch lava from the Mauna Loa volcano Thursday.
6/19
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People bathed in light from red flashlights look at a line of lava from the Mauna Loa volcano Thursday.
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Lava glows at the Mauna Loa volcano Thursday.
8/19
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Lava flows at the Mauna Loa volcano Thursday.
9/19
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Lava from the Mauna Loa volcano glows Thursday.
10/19
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A woman records with her phone as lava erupts from the Mauna Loa volcano Thursday.
11/19
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Cars wait in traffic along Saddle Road, with occupants waiting to view the Mauna Loa volcano Thursday.
12/19
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People use lights from their phones to find their way along a trail after viewing the Mauna Loa volcano, as cars sit in traffic along Saddle Road, right, Thursday.
13/19
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ASSOCIATED PRESS
A journalist, left, records lava from the Mauna Loa volcano as it erupts Wednesday, Nov. 30, near Hilo.
14/19
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COURTESY USGS
The webcam view of the Mauna Loa eruption on Dec. 1.
15/19
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COURTESY USGS
The webcam view of the Mauna Loa eruption on Dec. 1.
16/19
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COURTESY USGS
The view of Fissure No. 3 erupting on Mauna Loa's northeast rift zone on Dec. 1.
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COURTESY USGS
The view of Fissure No. 3 erupting on Mauna Loa's northeast rift zone on Dec. 1. A geologist for scale on the left.
18/19
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COURTESY USGS
The view of Fissure No. 3 erupting on Mauna Loa's northeast rift zone on the morning of Dec. 1. The fissure continues to be the dominant of two erupting fissures.
19/19
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COURTESY USGS
Hawaiian Volcano Observatory geologists collect samples in buckets downwind of the erupting Mauna Loa fissures. These samples will be analyzed to learn about lava being erupted.