The tremors ranged between 4.5 and 5.4..
Below is a screen cap from of one of the strongest of the shakes so far:
Seems to be a developing situation right now as more are occurring..
This is the latest in the now famous 'earthquake swarm' that has made news in the area for weeks..
Here is a link to a closer look at the fault line where these quakes are striking today..
Here is more from the USGS website on the shaking..