McDonald Island, Australia

- July 22, 1997
Scientists have noticed smoke and steam
plumes rising from an island southwest of the Australian mainland.
They believe this is the end of an eruption beneath the ocean. In
March, scientists first noticed smoke and steam rising from McDonald
Island, 2,800 miles (4,500 km) southwest of Perth. It is the first
active volcano that has been discovered in the Southern Hemisphere
for over 50 years.
It is believed that the volcano began
erupting in late December, 1996 or early January, 1997. When seawater
entered the undersea magma chamber, molten rock came to the surface
in the form of pumice, and steam rose several kilometers into the air.
McDonald is only Australia's second currently
active volcano. It was thought to have been inactive for over 35,000
years. McDonald could erupt again at any time and could be very dangerous
for anyone on the island at the time.
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