[Walter internally sighs in relief - it'd have been out loud, too, but there's no one immediately around to hear it, so nothing is lost by keeping it in his head.]

At the park? Flat will have to be looked over.

I shouldn't keep you from work, then.

Understood.

[It made sense; substances without obvious weakpoints could have them revealed by seismic events like these. And those with cracks could have them widened.]