So far, there has been at least 159 recorded aftershocks above magnitude 2.5 following today's 6.4 magnitude earthquake.

Experts say that while this is higher than usual, it is not unprecedented.

In the coming weeks, seismologist Robert Graves said there is a 9% chance of another earthquake greater than 6.4, and a 20% chance of one greater than five. As time passes, these probabilities will drop significantly.

Geologists went to where there were reports of ground cracks and faulting this afternoon. Experts have said they think there are two active faults, but have not identified them yet.

The quake has a name: Seismologists are calling this morning’s 6.4 quake the “Searles Valley Quake.”