Quake info: Reported (unconfirmed) earthquake: 3.6 mi northwest of San Ramon, Contra Costa County, California, USA, 1 June 2021 20:38 GMT – 3 user experience reports – VolcanoDiscovery June 1, 2021 by Zennie Abraham Quake info: Reported (unconfirmed) earthquake: 3.6 mi northwest of San Ramon, Contra Costa County, California, USA, 1 June 2021 20:38 GMT – 3 user experience reports VolcanoDiscovery …read more Source:: Oakland, California News By Google News