As a supplement to qwertxyz's answer, which gives the correct scansion, I'll note that this line fits into the scheme described in D.S. Raven, Latin metre §66:

The 'weak' third foot caesura is far less common in Latin than in Greek ... [I]n the most developed type of hexameter verse ... it is nearly always combined with 'strong' caesura in the fourth foot at least ... and usually also with 'strong' caesura in the second foot...

The example provided (Aeneid 1.87) corresponds closely to your line (except that the second foot is spondaic instead of dactylic):

insequitur | clamorque | virum | stridorque rudentum

As a supplement to qwertxyz's answer, which gives the correct scansion, I'll note that this line fits into the scheme described in D.S. Raven, Latin metre §66:

The 'weak' third foot caesura is far less common in Latin than in Greek ... [I]n the most developed type of hexameter verse ... it is nearly always combined with 'strong' caesura in the fourth foot at least ... and usually also with 'strong' caesura in the second foot...

The relevant parts of the example provided (Aeneid 1.87) correspond closely to your line (except that the second foot is spondaic instead of dactylic):

insequitur | clamorque | virum | stridorque rudentum