Sunday, Sept. 26, 2021

• 2.4M Earthquake 11 Kilometers Southwest of Petrolia
• 3.6M Earthquake 13 Kilometers Southeast of Petrolia

Saturday, Sept. 25, 2021

• 1.6M Earthquake 21 Kilometers Southwest of Petrolia
• 2.9M Earthquake 83 Kilometers West of Ferndale
• 2.1M Earthquake 18 Kilometers Southeast of Weitchpec

Friday, Sept. 24, 2021

• 2.4M Earthquake 5 Kilometers Southwest of Petrolia

Thursday, Sept. 23, 2021

• 2.6M Earthquake 17 Kilometers Southwest of Petrolia

Tuesday, Sept. 21, 2021

• 2.7M Earthquake 61 Kilometers West of Petrolia

Friday, Sept. 17, 2021

• 3.0M Earthquake 6 Kilometers Southwest of Petrolia

Sunday, Sept. 12, 2021

• 2.4M Earthquake 18 Kilometers Southwest of Petrolia

Friday, Sept. 10, 2021

• 2.4M Earthquake 23 Kilometers Northwest of Petrolia
• 2.2M Earthquake 5 Kilometers Southwest of Petrolia

Thursday, Sept. 9, 2021

• 4.3M Earthquake 4 Kilometers West of Petrolia

Tuesday, Sept. 7, 2021

• 3.6M Earthquake 100 Kilometers West of Petrolia

Saturday, Sept. 4, 2021

• 1.6M Earthquake 5 Kilometers Southwest of Petrolia

Friday, Sept. 3, 2021

• 2.3M Earthquake 7 Kilometers West of Petrolia

Thursday, Sept. 2, 2021

• 2.2M Earthquake 5 Kilometers West of Petrolia

Tuesday, Aug. 31, 2021

• 3.4M Earthquake 5 Kilometers West of Petrolia

Saturday, Aug. 28, 2021

• 2.3M Earthquake 33 Kilometers West of Hayfork

Wednesday, Aug. 25, 2021

• 2.1M Earthquake 2 Kilometers West of Petrolia

Friday, Aug. 20, 2021

• 2.9M Earthquake 64 Kilometers Northwest of Petrolia
• 3.2M Earthquake 3 Kilometers Southwest of Petrolia

Wednesday, Aug. 18, 2021

• 2.1M Earthquake 12 Kilometers Southeast of Redway

Sunday, Aug. 15, 2021

• 2.0M Earthquake 30 Kilometers West of Petrolia

Friday, Aug. 13, 2021

• 2.0M Earthquake 8 Kilometers Northwest of Petrolia

Thursday, Aug. 12, 2021

• 2.4M Earthquake 2 Kilometers Southwest of Petrolia
• 2.8M Earthquake 16 Kilometers Southwest of Petrolia

Monday, Aug. 9, 2021

• 2.8M Earthquake 3 Kilometers West of Petrolia
• 1.8M Earthquake 5 Kilometers East of Petrolia

Sunday, Aug. 8, 2021

• 3.4M Earthquake 4 Kilometers Southwest of Petrolia

Saturday, Aug. 7, 2021

• 2.2M Earthquake 5 Kilometers Southwest of Petrolia
• 2.5M Earthquake 56 Kilometers West of Ferndale

Friday, Aug. 6, 2021

• 2.2M Earthquake 6 Kilometers Northeast of Petrolia

Thursday, Aug. 5, 2021

• 3.7M Earthquake 86 Kilometers West of Petrolia

Sunday, Aug. 1, 2021

• 2.3M Earthquake 2 Kilometers West of Petrolia
• 1.6M Earthquake 10 Kilometers Southwest of Petrolia

Friday, July 30, 2021

• 1.9M Earthquake 10 Kilometers Southeast of Redway

Thursday, July 29, 2021

• 1.6M Earthquake 4 Kilometers Southwest of Petrolia
• 2.2M Earthquake 53 Kilometers West of Ferndale
• 2.9M Earthquake 40 Kilometers West of Petrolia

Tuesday, July 27, 2021

• 2.4M Earthquake 56 Kilometers Northwest of Petrolia

Monday, July 26, 2021

• 2.4M Earthquake 10 Kilometers Southeast of Willow Creek

Sunday, July 25, 2021

• 2.9M Earthquake 17 Kilometers West of Petrolia

Saturday, July 24, 2021

• 2.9M Earthquake 5 Kilometers Southwest of Petrolia

Friday, July 23, 2021

• 2.7M Earthquake 4 Kilometers West of Petrolia

Thursday, July 22, 2021

• 2.1M Earthquake 41 Kilometers West of Petrolia

Wednesday, July 21, 2021

• 2.5M Earthquake 125 Kilometers West of Ferndale
• 2.6M Earthquake 40 Kilometers Northwest of Petrolia
• 2.8M Earthquake 50 Kilometers Northwest of Petrolia
• 4.3M Earthquake 5 Kilometers West of Petrolia