Truckee has been rocking Tuesday, with at least 28 small earthquakes shaking the high Sierra town overnight, the largest registering a magnitude 3.9 according to the United States Geological Survey.

The largest quake hit at 1:09 AM local time at an incredibly shallow depth, essentially right at the surface. There was no initial word on damage or injury resulting from the quake. More information on this earthquake is available on the USGS event page.

A recent study indicates earthquake activity increases in the dryer season, so it’s natural to see more quakes this time of year, as the weight of all the snow and water begins to lift, allowing the crust to rise. “It’s not like we’re seeing an earthquake …