Just did a bit more research...So according to USGS the area gets around 20 quakes a day since 1980 when the sustained unrest began...so the 30 day amount is normal, and has been that way for the last 30 years ( but was not normal prior to that )...interesting.

TYPICAL BEHAVIOR: Since 1980, typical background geologic activity in the Long Valley area has included as many as 20 earthquakes of magnitude 2 or smaller a day, occasional swarms of magnitude 3 and larger earthquakes (felt locally), and uplift of the center of Long Valley Caldera at a rate of about 1 inch per year. Swarms including magnitude 4 earthquakes may occur about once a year.

[link to pubs.usgs.gov]

I look forward to reading the findings of their survey...maybe that may shed more light on exactly what is happening in the region.