Question

slip, slide, & collide
plate interactions challenge
case 2: new zealand
what geological event is most likely to occur at this plate boundary in the future?

• the south island of new zealand will split in two, forming a new sea.
• a major earthquake — magnitude 7 or 8 — will occur somewhere along the plate boundary.
• magma will push up from the mantle, forming a new volcano.
• an existing volcano will erupt.

Explanation:

New Zealand lies on the boundary of the Australian and Pacific tectonic plates, which are transform (strike - slip) and convergent boundaries. Transform boundaries are prone to significant earthquakes (magnitude 7 - 8 is common for such active plate boundaries). Splitting to form a new sea is typical of divergent boundaries (not New Zealand's case). New volcano formation or existing volcano eruption is more associated with convergent boundaries with subduction (New Zealand has some volcanic activity but the most likely frequent major event at the plate boundary here is earthquakes due to the transform - convergent interaction, and the earthquake option is the most characteristic of the plate boundary's main geological hazard in terms of likelihood for a "future" event as plate movement causes stress build - up leading to quakes).

Answer:

B. A major earthquake — magnitude 7 or 8 — will occur somewhere along the plate boundary.