Can someone verify if this is detonation? (vid)

[Ssiptang]

I'm not sure if that was detonation or just some rocks. I have never heard detonation before.
You could hear little ones @ 49 sec and a loud one @ 52 sec.

 

[CPRsm]

Detonation is under a load. Those were rocks getting picked up at the big end w sticky tires and slung against the underside of your car

 

[ford20]

Doesn't detonation only occur under WOT conditions?

 

[Ssiptang]

Detonation is under a load. Those were rocks getting picked up at the big end w sticky tires and slung against the underside of your car

Thanks for the verification. It stressed me out all freaking day.

 

[CPRsm]

Doesn't detonation only occur under WOT conditions?

Needs a load, but doesn't have to be WOT. Can see it on light loads just cruising as well.