What is maximum ground distance that lava can flow from an erupting
volcano?
Graham Wright
Graham -
Many lava flows are just a few kilometers long, but some - like
those on Mauna Loa, Hawaii - are tens of km long. The longest flows
generally noted are in Australia and Iceland where flows up to 150 km
have been described. On the Moon and Mars much longer lava flows have
been measured, including some nearly 1000 km (600 miles) long!
Charles A. Wood, Space Studies, Univ. of North Dakota