Per CSEM / EMSC, a M 3.3 aftershock was felt in the same general area as the earlier quake.
-NW

Major 5.1 Earthquake Strikes Outside of San Jose, CA
Mary Greeley News
Oct 25, 2022
https://www.youtube.com/watch?v=g5rNJgXUMrI

Viewer comments:,/i>

H Q
I got a shake alert and it even called the quake "Severe". It was very rolling and wave like, giving a surprisingly gentle impression of the experience. Thank you for your thorough coverage of quakes in this area. There are a lot of people who will be inclined to pay careful attention to details here.

T S
I felt it, it was so strong and so loud, it sounded like a truck drove into my house and my chandelier was swinging

V
Oh I felt it. I was sitting in my living room (Campbell, CA) and it started to shake. Im from the midwest (Chicago) and this is third time feeling a quake although thus so far this was longest and biggest Ive felt. My cat woke from her nap on her tree by the window and jumped up and ran to hide. Id say it felt like it lasted about ten seconds as I was able to text my brother back home that we were shaking. There was an aftershock but very lightly. All is good so far since.