How fast is lava in Hawaii?greenspun.com : LUSENET : About Hawaii : One Thread
How fast does the lava travel? Some of the pictures on tv make it look like it's moving awful slow and some fast.
-- Val Morim (email@example.com), January 19, 1999
Lava on the surface usually travels 1-300 yards per hour, but sometimes moves 8-10 miles an hour. Underground tunnels could have lava moving 50+ miles per hour.
-- Roy Inouye (firstname.lastname@example.org), January 19, 1999.