Seafloor spreading occurs at divergent plate boundaries under the ocean.
Convection currents beneath the plates move the plates in different directions.
plate boundary
Japan is at the meeting place of four tectonic plates: The Pacific Plate, The Eurasian Plates, The Philippine Plate, and the Okhotsk Plate (sometimes considered part of the North American Plate).
At a divergent plate boundary.
a convergent boundary. The oceanic plate is then subducted under the continental plate because it is denser. This subduction creates earthquakes and volcanoes
Australia is in the middle of the Australian-Indian plate. Antarctica has its own plate, but the actual continent doesn't get near the plate boundary. It's plate is called, oddly enough, the Antarctic plate. Who would have figured? You could say that Africa's edges aren't on plate boundaries, but there are some places in northern Africa that get pretty close to being on a boundary.
plate boundary
divergent boundary
Japan is at the meeting place of four tectonic plates: The Pacific Plate, The Eurasian Plates, The Philippine Plate, and the Okhotsk Plate (sometimes considered part of the North American Plate).
Older material
The East African Rift Valley
At a divergent plate boundary.
a convergent boundary. The oceanic plate is then subducted under the continental plate because it is denser. This subduction creates earthquakes and volcanoes
any where
Australia is in the middle of the Australian-Indian plate. Antarctica has its own plate, but the actual continent doesn't get near the plate boundary. It's plate is called, oddly enough, the Antarctic plate. Who would have figured? You could say that Africa's edges aren't on plate boundaries, but there are some places in northern Africa that get pretty close to being on a boundary.
No, that would be a divergent plate boundary where a rift valley forms.
No, it would form along a separating (divergent) tectonic plate boundary.
This would be called a Spreading center, or a divergent plate boundary.