Another Quake

I was sitting in the living room at a little before 2 a.m., listening to Sibelius Symphony No. 5 through headphones. I felt a quick, sharp vertical movement and thought I heard a bit of a bumping noise. Did I doze off? Was it noise from the study lounge upstairs? Or was that an earthquake? I immediately ran to the computer and the SoCal seismic site, refreshed the browser a couple of times and saw this:

I was right! A 4+ (4.2), just on the other side of the San Bernadino Mts. Event Id ci10285533 at 1:53 a.m. There were five more little shocks of 2.0 or less at the same location within the next fifteen minutes or so, but I didn’t feel them. It looks like the first 4+ quake in at least a week, maybe more.
Here’s the detailed list: