- Report an earthquake Bold red lines are plate boundaries.
The line where this happens is called a divergent plate boundary.
The place where plates meet are called plate boundaries.
Many of the ancient faults are within plates rather than along plate boundaries.
Over time, the position of the plate boundary has altered.
However, the plate boundary and subduction zone in this area is not very straight.
A triple junction is the point at which three plate boundaries meet.
They may be on, near to, or far from tectonic plate boundaries.
The 1906 event was one of many large earthquakes in Chile along this plate boundary.
The plate boundary is defined by the trench axis itself.