Question

which type of plate boundary is directly associated with massive earthquakes such as the devastating 1986 san francisco earthquake? transform fault boundaries meandering plate boundaries diverging plate boundaries

Explanation:

1. Recall plate boundary types: Transform fault boundaries involve plates sliding past each other horizontally, causing significant seismic activity (e.g., San Andreas Fault, linked to San Francisco quakes).
2. Meandering plate boundaries are not a recognized plate boundary type.
3. Diverging boundaries involve plates moving apart (e.g., mid - ocean ridges), and their seismic activity is typically less intense and different in nature than transform boundaries for major quakes like the 1986 (note: the 1989 Loma Prieta quake is more associated, but the concept holds) San Francisco - related quake. So the correct type is transform fault boundaries.

Answer:

A. transform fault boundaries