As luck would have it, our computer was down during the magnitude 5.6 #earthquake at 8:53 PM 3 mi SSW of Petrolia, CA (41 mi from Arcata). Here is the seismogram from the Hayfork USGS instrument. #CAwx pic.twitter.com/oUkRkaOGRu

— Arcata Weather (@ArcataWx) 23 de junio de 2019