a desert plate and a dinner plate
The plates involved in the Montserrat eruption are the North American Plate and the Caribbean Plate. Montserrat is located along the boundary where these two plates meet. The eruption was caused by the subduction of the North American Plate beneath the Caribbean Plate, leading to volcanic activity on the island.
two plates rubbing together
Plate tectonics
The Philippine plate collided with the Eurasian plate this is called a convergent boundary where the two plates collided and the plate melts and then shoots back up through the volcano causing an eruption
The Eyjafjallajökull eruption in 2010 involved the Eurasian and North American tectonic plates in Iceland. The volcano is located along the Mid-Atlantic Ridge, where these two plates are diverging.
A destructive margin
Assuming you are talking about the earthquake in Japan, the two plates are the Pacific and the Asian plates.
If seen broadly we can say that earthquakes are caused due to two major reasons. The first reason is the eruption of volcanoes, which are sudden, and as is known volcanoes are seat of inner disturbance and can effect the plates which is the second cause of earthquakes. Earthquakes are caused due to disturbance in the movement of plates, which again can be caused due to various reasons like under crust waves or cracks in the plates.
subduction boundary eruption
Earthquakes and tsunamis.
Two tectonic plates
No. Earthquakes are generally caused by the rubbing of two plates (tectonic plates).