A rather silly answer would be to point out that the mid-Atlantic ridge is technically off the Atlantic coast -- just 2500 kilometers away!
More seriously: it is always possible that a new hot spot will form, like that which formed the New England Seamounts chain of extinct underwater volcanic peaks extending to the east of Cape Cod all the way to the (still volcanically active) Azores.
(For some reason Pinduck85 seems to have forgotten about hotspot volcanoes. Also volcanoes from rifting - hmm, come to think of it The St. Lawrence River and estuary is a failed rift zone with a line of ancient extinct volcanoes running eastward of Montreal).
In the current geologic setting off the East Coast, there is no reason to believe that one could form. Although not impossible because the forces that can trigger volcanoes are not entirely understood, it is highly unlikely one could form. The reasons for this, unlike the pacific coast there is no active subduction on the East Coast to create volcanoes and drive a magmatic production process. There is also no known active hotspot along the East Coast. The problem for a volcano to form in this region goes back to there, doesn't seem to be any way for the East Coast of the United States geologically to sustain any form of magma production that could cause a volcano.
Spain has an Atlantic Ocean coast and a Mediterranian Sea coast. Ireland has an Atlantic Ocean coast and an Irish Sea coast. Scotland has an Atlantic Ocean coast and a North Sea coast.
The State of Maine is the northernmost US state on the Atlantic coast.
Coastal Plains
I think the atlantic city
it is the southern coast of Georgia, alantic ocean
East coast or the coast of the Atlantic Ocean.
That would be the Atlantic Coast, or East Coast if you will.
The Atlantic
No, only coast in proper nouns would be capitalized, like Mosquito Coast.
Atlantic Coast Conference
Atlantic coast!
atlantic coast
In the current geologic setting off the East Coast, there is no reason to believe that one could form. Although not impossible because the forces that can trigger volcanoes are not entirely understood, it is highly unlikely one could form. The reasons for this, unlike the pacific coast there is no active subduction on the East Coast to create volcanoes and drive a magmatic production process. There is also no known active hotspot along the East Coast. The problem for a volcano to form in this region goes back to there, doesn't seem to be any way for the East Coast of the United States geologically to sustain any form of magma production that could cause a volcano.
Atlantic oceans coastline
That would be the Atlantic Ocean.
The Canary Island of Lanzarote has a volcano which it said to be on the precipice of falling in to the sea, should this erupt and happen it would cause a massive Tsunami which would cross the Atlantic Basin and likely reach the US East coast.