Asimov may well be the only "celebrity" death that I distinctly remember. I guess I also remember where I was when Princess Diana died, but only because my wife was utterly devastated.
Yes. I particularly remember Asimov's death as it came only a few years after Heinlein's. It was a reminder that we were losing the last of that first generation of greats. I got drunk and cried on my father's copy of "Across the Sea of Stars" when Clarke passed.