At only 17 miles from Lone Pine, and at a very shallow depth, the "shake map" for the initial 4.5 quake indicates that it could very well have been felt by anyone in the Whitney area (including the summit) at the time.

Imagine being on the East Face during a quake. eek

CaT

If future generations are to remember us with gratitude rather than contempt, we must leave them more than the miracle of technology. We must leave them a glimpse of the world as it was in the beginning, not just after we got through with it.
- Lyndon Johnson, on signing the Wilderness Act into law (1964)