This is a tragedy,

He was always cheerful, always helping anyone ... always the first to volunteer to take stuff on.

At the end of the day, it's got to have effective technology, which means it has got to shave.

Cycle after cycle, like the ticks of a clock, we get closer and closer to the point where one of these mega-thrust earthquakes are going to occur like happened in Indonesia last year. You can almost look at these slip events as ticks of that clock.

I've lost a dear friend; and, the guy I depended on for so many different things, here in the lab. He's irreplaceable. I don't know where we go from here.

There isn't a consensus of exactly what is going on with this deep tremor. There's a lot of unanswered questions.