Good morning Northern California! Did you feel the magnitude 4.9 quake about 1 mile southeast of Boulder Creek at 1:41 am? The #ShakeAlert system was activated. See: https://t.co/nwxUGkr8S8 @Cal_OES @CAGeoSurvey @USGS_Quakes @FEMARegion9 @sccounty pic.twitter.com/FmhFk0JEG7

— USGS ShakeAlert (@USGS_ShakeAlert) April 2, 2026