Weekly RoundupM4.0 Peak105 earthquakes
Bay Area Earthquake Roundup: Nov 23 - Nov 29, 2025 (105 Earthquakes, Max M4.0)
105 earthquakes recorded in the Bay Area during the week of Nov 23 - Nov 29, 2025. Largest was M4.0. Complete summary and analysis.
Updated Nov 29, 2025, 11:59 PM PTSan Juan Bautista, San Jose, Morgan Hill +7 more
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San Juan Bautista
M4.0
105
Total Earthquakes
M4.0
Largest Magnitude
10
Cities Affected
Nov 29, 2025
Updated
Weekly Summary
The San Francisco Bay Area recorded 105 earthquakes during the week of Nov 23 - Nov 29, 2025.
Key Statistics
| Metric | Value |
|---|---|
| Total Earthquakes | 105 |
| Largest Magnitude | M4.0 |
| Average Magnitude | M1.41 |
| Most Active Region | Gilroy (37 earthquakes) |
Notable Earthquakes
- M4.0 - 5 km S of San Juan Bautista, CA
Thursday, November 27, 2025 at 8:57 PM
View Details- M4.0 - 8 km E of Gilroy, CA
Wednesday, November 26, 2025 at 2:16 PM
View Details- M3.7 - 6 km S of San Juan Bautista, CA
Thursday, November 27, 2025 at 8:48 PM
View Details- M3.6 - 9 km E of Gilroy, CA
Wednesday, November 26, 2025 at 2:20 PM
View Details- M3.2 - 5 km W of San Juan Bautista, CA
Friday, November 28, 2025 at 3:40 PM
View DetailsActivity by Region
- Gilroy: 37 earthquakes
- Santa Clara: 31 earthquakes
- SF Peninsula: 18 earthquakes
Swarm Activity
10 earthquake swarms were detected this week:
- Santa Clara: 6 earthquakes (Peak: M1.8)
- Gilroy: 15 earthquakes (Peak: M4.0)
- SF Peninsula: 8 earthquakes (Peak: M3.0)
- San Ramon: 7 earthquakes (Peak: M1.7)
- Gilroy: 13 earthquakes (Peak: M4.0)
- Santa Clara: 5 earthquakes (Peak: M2.1)
- SF Peninsula: 6 earthquakes (Peak: M0.8)
- Gilroy: 5 earthquakes (Peak: M1.8)
- San Ramon: 8 earthquakes (Peak: M1.4)
- Gilroy: 5 earthquakes (Peak: M2.0)
What This Means
This was an active week for the Bay Area. While most earthquakes were too small to feel, the elevated activity is a reminder that we live in one of the most seismically active regions in the United States.
Stay Prepared
- Keep your earthquake emergency kit stocked and accessible
- Know what to do: Drop, Cover, and Hold On
- Report earthquakes you feel: Did You Feel It?
Topics covered
#weeklyroundup#bayarea#seismicactivity#sanjuanbautista#sanjose#morganhill#sanramon#st.helena
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Data source:USGS Earthquake Hazards Program