February 2026 Seismic Activity Report: 121 Earthquakes (Max M4.2)
Complete analysis of Bay Area earthquake activity in February 2026. 121 total earthquakes recorded, 7 felt events. Trends, regional breakdown, and safety reminders.
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February 2026 Overview
The San Francisco Bay Area recorded 121 earthquakes in February 2026, with magnitudes ranging from M0.9 to M4.2.
Monthly Statistics
| Metric | Value |
|---|---|
| Total Earthquakes | 121 |
| Largest Earthquake | M4.2 |
| Average Magnitude | M2.04 |
| Felt Earthquakes (M3+) | 7 |
| Earthquake Swarms | 2 |
Magnitude Distribution
| Range | Count | Percentage |
|---|---|---|
| M0-2 (Micro) | 62 | 51% |
| M2-3 (Minor) | 52 | 43% |
| M3-4 (Light) | 6 | 5% |
| M4+ (Moderate+) | 1 | 1% |
Regional Breakdown
| Region | Earthquakes | Share |
|---|---|---|
| San Ramon | 111 | 92% |
| Bay Area | 4 | 3% |
| Santa Clara | 3 | 2% |
| Gilroy | 2 | 2% |
| Berkeley | 1 | 1% |
Weekly Trend
- Week of Feb 1: 121 earthquakes
- Week of Feb 8: 0 earthquakes
- Week of Feb 15: 0 earthquakes
- Week of Feb 22: 0 earthquakes
Felt Earthquakes
These earthquakes were large enough to potentially be felt by residents:
M4.2 - 4 km SE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 3:01 PM UTC
- Depth: 9.6 km
- View Details →
M3.8 - 4 km SSE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 2:27 PM UTC
- Depth: 9.1 km
- View Details →
M3.8 - 5 km SSE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 3:27 PM UTC
- Depth: 8.2 km
- View Details →
M3.4 - 5 km SE of San Ramon, CA
- Date: Tuesday, February 3, 2026
- Time: 4:30 AM UTC
- Depth: 8.6 km
- View Details →
M3.1 - 4 km ESE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 10:56 PM UTC
- Depth: 7.8 km
- View Details →
M3.1 - 4 km SE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 2:29 PM UTC
- Depth: 8.1 km
- View Details →
M3.0 - 4 km ESE of San Ramon, CA
- Date: Monday, February 2, 2026
- Time: 11:04 PM UTC
- Depth: 8.4 km
- View Details →
Swarm Activity
2 earthquake swarms were detected in February 2026:
- San Ramon Swarm
- Duration: Feb 4, 2026 - Feb 5, 2026
- Total earthquakes: 13
- Peak magnitude: M2.2
- San Ramon Swarm
- Duration: Feb 1, 2026 - Feb 4, 2026
- Total earthquakes: 97
- Peak magnitude: M4.2
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
More from Bay Tremor
- Bay Area Earthquake Roundup: Feb 1 - Feb 7, 2026 (121 Earthquakes, Max M4.2)
- ⚡ Earthquake Swarm Alert: 13 Earthquakes in San Ramon
- 📢 M3.8 Earthquake Near Dublin - Did You Feel It?
- ⚠️ M4.2 Earthquake Hits San Ramon - Felt Across Bay Area
- 📢 M3.8 Earthquake Near San Ramon - Did You Feel It?