Authorities won't stop magma from active volcano from hitting highway

's Mauna Loa volcano is likely going to reach a major highway in the state unimpeded, as it moves within 2.5 miles of traffic on Sunday.

Many people on the Big Island in Hawaii are bracing for major upheaval if lava from Mauna Loa slides across a key road and blocks the quickest route connecting two sides of the island.

The molten rock could make the road impassable and force drivers to find alternate coastal routes in the north and south.

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