⌛ TIME MACHINE

3.4-magnitude quake near Brentwood shakes Contra Costa County

9 verified updates • corroborated by 2 independent sources • tracked since September 12, 2026

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  Sep 12, 10:30 AM 1 source: SFGATE

  3.4-magnitude quake near Brentwood shakes Contra Costa County
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  Sep 12, 11:00 PM 1 source: sfgate.com
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  Sep 12, 11:30 PM 1 source: SFGATE
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  Sep 13, 12:30 AM 1 source: sfgate.com
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  Sep 13, 02:00 AM 1 source: SFGATE
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  Sep 13, 04:30 AM 1 source: sfgate.com
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  Sep 13, 05:00 AM 1 source: SFGATE
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  Sep 13, 08:30 AM 1 source: sfgate.com
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  Sep 13, 09:00 AM 1 source: SFGATE