The farthest you can ever get from the Prime Meridian is the point way out in the central
Pacific Ocean, on the equator, at 180° longitude. Approximate distances from there to
some points on land are:
Tarawa . . . . . 485 miles
Funafuti . . . . . 600 mi
Tokyo . . . . . . . 3,550 mi
Port Moresby. . 2,350 mi
Brisbane . . . . . 2,600 mi
Anchorage . . . 4,510 mi
Seattle . . . . . . 4,760 mi
San Francisco . 4,490 mi
San Diego .. . . 4,660 mi
Panama Canal . 6,930 mi
Lima . . . . . . . . 7,100 mi
Antarctica, nearest point . . . 5,030 mi.
Distances to points on the Prime Meridian:
0° lat, 0° lon (Intersection of Equator and Prime Meridian) . . . 12,439.9 miles
North or south pole (ends of the Prime Meridian) . . . .. . . . . . . . 6,219.9 miles
There's only one Prime Meridian for the whole Earth, and it's nowhere near Etna. The closest it ever gets is about 820 miles away.
No. The closest it ever gets is about 1° west, or about 58 miles from the PM.
It joins the north and south poles, and it has stayed right where it is now ever since it was invented.
Yes 1 2 and 3 are consecutive and prime
Not with the technology we have right now.
more than you could ever dream of
No ones ever tried. You could be the first!
No.
yes because some volcanic tubes hold no magmum.
No.
-- Parallels of latitude don't ever touch the poles. -- Technically, meridians of longitude touch the poles but don't pass through them, because the north and south poles are the two ends of each meridian. So they all meet at the poles, but don't pass through.
No.