In reply to TheFasting:
> seracs falling it mostly random (except for factors like time of day, temperature)
I think seracs falling is almost entirely a random thing, as it's (mostly) a product of ice flow dynamics rather than temperature. Of course the ice flow dynamics is a result of temperature but over a much longer time base (weeks/months). What is less random is the fact that that once a serac has fallen, it frees up ice behind it to then become unstable, so resulting in additional collapses. So I'd be a bit reluctant to go cruising across really fresh serac debris.
But this is, of course, being typed from the relative comfort of a house. And not from the point of view of a glaciologist either. I'm just a typical UKC "expert"!