Earthquake 21 km NW of Petrolia, CA (1.8 md) (2025-09-20 14:43:38 UTC)
A 1.8 magnitude earthquake struck on 21 km NW of Petrolia, CA, at 2025-09-20 14:43:38 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 21 km NW of Petrolia, 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)
1.8
Automatic
USGS
Summary
- Intensity: 0
- Tsunami: 0
- ID: usgs_nc75239867
Nearest Places
- The Great Break / 0.81 km
- Blunts Reef / 1.35 km
- Blunts Reef Coast Guard Station / 1.83 km
- Blunts Reef Lightship (historical) / 1.84 km
- Fauntleroy Rock / 3.48 km
Comment
Latest Earthquake
4.4
MYANMAR
Time:
Depth: 6.00 km
Source: EMSC (Automatic)
Time:
Depth: 6.00 km
Source: EMSC (Automatic)
1.6
26 km SE of Point Possession, Alaska
Time:
Depth: 34.40 km
Source: USGS (Automatic)
Time:
Depth: 34.40 km
Source: USGS (Automatic)
1.3
FINLAND-RUSSIA BORDER REGION
Time:
Depth: 0.00 km
Source: EMSC (Automatic)
Time:
Depth: 0.00 km
Source: EMSC (Automatic)
1.9
West Papua Region, Indonesia
Time:
Depth: 22.17 km
Source: BMKG (Automatic)
Time:
Depth: 22.17 km
Source: BMKG (Automatic)
2.8
Timor Region
Time:
Depth: 22.31 km
Source: BMKG (Automatic)
Time:
Depth: 22.31 km
Source: BMKG (Automatic)