Along these fault zones, they can sometimes detect small quakes, the tilting of rock, and other events that might signal a large earthquake is about to occur.
(they; can detect; small quakes, the tilting of rock, and other events; L:Along these fault zones; T:sometimes) (a large earthquake; to occur; ) (other events; might signal; a large earthquake is about to occur) Context(other events might signal,List([90, 120))):(a large earthquake; is; about to occur)
other events might signal,List([90, 120))
they a large earthquake other events a large earthquake
can detect to occur might signal is
small quakes, the tilting of rock, and other events L:Along these fault zones T:sometimes
a large earthquake is about to occur
about to occur