January 2026 Seismic Activity Report: 182 Earthquakes
Complete analysis of Bay Area earthquake activity in January 2026. 182 total earthquakes recorded, 4 felt events. Trends, regional breakdown, and safety reminders.
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January 2026 Overview
The San Francisco Bay Area recorded 182 earthquakes in January 2026, with magnitudes ranging from M0.5 to M3.4.
Monthly Statistics
| Metric | Value |
|---|---|
| Total Earthquakes | 182 |
| Largest Earthquake | M3.4 |
| Average Magnitude | M1.39 |
| Felt Earthquakes (M3+) | 4 |
| Earthquake Swarms | 8 |
Magnitude Distribution
| Range | Count | Percentage |
|---|---|---|
| M0-2 (Micro) | 159 | 87% |
| M2-3 (Minor) | 19 | 10% |
| M3-4 (Light) | 4 | 2% |
| M4+ (Moderate+) | 0 | 0% |
Regional Breakdown
| Region | Earthquakes | Share |
|---|---|---|
| San Ramon | 53 | 29% |
| SF Peninsula | 39 | 21% |
| Bay Area | 32 | 18% |
| Santa Clara | 16 | 9% |
| Gilroy | 14 | 8% |
Weekly Trend
- Week of Jan 1: 26 earthquakes
- Week of Jan 8: 58 earthquakes
- Week of Jan 15: 34 earthquakes
- Week of Jan 22: 24 earthquakes
- Week of Jan 29: 11 earthquakes
Felt Earthquakes
These earthquakes were large enough to potentially be felt by residents:
M3.4 - 4 km SE of San Ramon, CA
- Date: Friday, January 30, 2026
- Time: 6:33 PM UTC
- Depth: 9.3 km
- View Details →
M3.1 - 5 km SE of San Ramon, CA
- Date: Friday, January 30, 2026
- Time: 6:33 PM UTC
- Depth: 8.1 km
- View Details →
M3.0 - 23 km ENE of Alum Rock, CA
- Date: Thursday, January 15, 2026
- Time: 2:54 PM UTC
- Depth: 8.9 km
- View Details →
M3.0 - 2 km SE of San Ramon, CA
- Date: Friday, January 2, 2026
- Time: 12:58 AM UTC
- Depth: 8.9 km
- View Details →
Swarm Activity
8 earthquake swarms were detected in January 2026:
- San Ramon Swarm
- Duration: Jan 28, 2026 - Jan 31, 2026
- Total earthquakes: 7
- Peak magnitude: M3.4
- SF Peninsula Swarm
- Duration: Jan 17, 2026 - Jan 19, 2026
- Total earthquakes: 7
- Peak magnitude: M1.5
- SF Peninsula Swarm
- Duration: Jan 13, 2026 - Jan 16, 2026
- Total earthquakes: 18
- Peak magnitude: M2.5
- Bay Area Swarm
- Duration: Jan 12, 2026 - Jan 13, 2026
- Total earthquakes: 8
- Peak magnitude: M1.7
- SF Peninsula Swarm
- Duration: Jan 10, 2026 - Jan 12, 2026
- Total earthquakes: 5
- Peak magnitude: M1.3
Looking Ahead
The Bay Area sits atop several major fault systems including the San Andreas, Hayward, and Calaveras faults. Scientists estimate a 72% probability of a magnitude 6.7 or greater earthquake in the region within the next 30 years.
Stay Prepared
1. Before: Create an earthquake kit and family communication plan
2. During: Drop, Cover, and Hold On
3. After: Check for injuries, assess damage, and be prepared for aftershocks
Report felt earthquakesTopics covered
Related Reports
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- ⚡ Earthquake Swarm Alert: 13 Earthquakes in San Ramon
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