Earthquake 3 km NNW of Castro Valley, CA (1.3 md) (2025-08-23 11:32:16 UTC)
A 1.3 magnitude earthquake struck on 3 km NNW of Castro Valley, CA, at 2025-08-23 11:32:16 UTC. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of md and was felt in surrounding areas. Stay updated on earthquake activity in 3 km NNW of Castro Valley, CA
Recommendation
Minor Earthquake
Minor Earthquake
Action
No need for significant action. These tremors are typically imperceptible or barely felt.
Suggestion
Remain calm and observe. These are often harmless and not a cause for concern.
Magnitudo (md)
1.3
Automatic
USGS
Summary
- Intensity: 0
- Tsunami: 0
- ID: usgs_nc75227667
Nearest Places
- Lake Chabot / 0.55 km
- Nike Site SF-31L (historical) / 0.65 km
- East Bay Regional Park District Station 10 / 0.77 km
- Nike Site SF-31C (historical) / 1.28 km
- Redwood High School / 1.31 km
Comment
Latest Earthquake
2.2
8 km WSW of Knik, Alaska
Time:
Depth: 31.80 km
Source: USGS (Automatic)
Time:
Depth: 31.80 km
Source: USGS (Automatic)
2.9
5 km NE of Point MacKenzie, Alaska
Time:
Depth: 21.90 km
Source: USGS (Automatic)
Time:
Depth: 21.90 km
Source: USGS (Automatic)
1.4
WESTERN TURKEY
Time:
Depth: 7.00 km
Source: EMSC (Automatic)
Time:
Depth: 7.00 km
Source: EMSC (Automatic)
2.5
ANTOFAGASTA, CHILE
Time:
Depth: 103.10 km
Source: EMSC (Automatic)
Time:
Depth: 103.10 km
Source: EMSC (Automatic)
2.5
NORTHERN TERRITORY, AUSTRALIA
Time:
Depth: 9.00 km
Source: EMSC (Automatic)
Time:
Depth: 9.00 km
Source: EMSC (Automatic)