California earthquakes

M2.1 earthquake 5km N of Stratford, CA

A magnitude 2.1 earthquake struck 5km N of Stratford, CA on Thu, Oct 28, 2021, 1:10 AM PDT (08:10 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M3.2 7km NW of Parkfield, CA. This one was a foreshock.

Stratford forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-28 08:10:31 UTC
Depth
21.6 km (13.4 mi), shallow
Epicenter
36.233° N, 119.830° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
60°
Stations used
34

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 2.24km ESE of Cholame, CA · 1801 days ago · 13 km deep · 70 km away · felt by 1
  2. 1.822km NW of Parkfield, CA · 1801 days ago · 0 km deep · 73 km away
  3. 2.79km ENE of East Orosi, CA · 1801 days ago · 27 km deep · 70 km away · felt by 3
  4. 1.68km SSE of Huron, CA · 1800 days ago · 9 km deep · 25 km away
  5. 2.222km NE of San Lucas, CA · 1789 days ago · 7 km deep · 88 km away
  6. 1.60km ENE of Kettleman City, CA · 1789 days ago · -1 km deep · 27 km away
  7. 3.27km NW of Parkfield, CA · 1784 days ago · 10 km deep · 67 km away · felt by 12
  8. 1.622km WNW of Buttonwillow, CA · 1783 days ago · 28 km deep · 86 km away
  9. 1.623km ENE of San Ardo, CA · 1777 days ago · 4 km deep · 77 km away
  10. 1.716km ESE of Kettleman City, CA · 1775 days ago · 9 km deep · 29 km away
  11. 1.810km WNW of New Idria, CA · 1775 days ago · 15 km deep · 88 km away
  12. 1.512km NW of Parkfield, CA · 1775 days ago · 8 km deep · 69 km away
  13. 1.814km ESE of Porterville, CA · 1775 days ago · 9 km deep · 90 km away
  14. 1.824km NW of Parkfield, CA · 1772 days ago · 3 km deep · 74 km away
  15. 2.112km S of Yosemite Lakes, CA · 1763 days ago · 11 km deep · 95 km away
  16. 2.710km NNE of New Idria, CA · 1761 days ago · 9 km deep · 76 km away · felt by 1
  17. 2.14km WSW of Squaw Valley, CA · 1755 days ago · 13 km deep · 73 km away
  18. 1.914km SSW of Avenal, CA · 1754 days ago · 21 km deep · 49 km away
  19. 1.714km SSW of Avenal, CA · 1753 days ago · 21 km deep · 49 km away
  20. 2.112km WNW of Corcoran, CA · 1752 days ago · 20 km deep · 16 km away
  21. 2.36km NE of Orange Cove, CA · 1751 days ago · 22 km deep · 70 km away
  22. 2.114km N of Coalinga, CA · 1748 days ago · 9 km deep · 50 km away
  23. 1.612km NW of Parkfield, CA · 1747 days ago · 7 km deep · 69 km away
  24. 2.511km N of Avenal, CA · 1746 days ago · 9 km deep · 32 km away
  25. 2.211km WSW of Squaw Valley, CA · 1746 days ago · 19 km deep · 68 km away
  26. 2.217km ENE of New Idria, CA · 1743 days ago · 15 km deep · 65 km away

Before

  1. 2.15km NE of New Idria, CA · 1806 days ago · 13 km deep · 76 km away
  2. 1.713km ESE of Kettleman City, CA · 1809 days ago · 8 km deep · 31 km away · felt by 1
  3. 1.912km ESE of Kettleman City, CA · 1809 days ago · 9 km deep · 31 km away
  4. 1.77km NE of Coalinga, CA · 1809 days ago · 10 km deep · 43 km away
  5. 1.720km ESE of Kettleman City, CA · 1811 days ago · 17 km deep · 31 km away
  6. 2.413km ESE of Kettleman City, CA · 1811 days ago · 5 km deep · 30 km away · felt by 1
  7. 1.96km SSW of Huron, CA · 1812 days ago · 10 km deep · 28 km away
  8. 3.47km NE of Coalinga, CA · 1812 days ago · 10 km deep · 43 km away · felt by 24
  9. 2.88km NE of Coalinga, CA · 1812 days ago · 10 km deep · 43 km away
  10. 2.313km ESE of Kettleman City, CA · 1813 days ago · 13 km deep · 29 km away
  11. 2.124km NE of King City, CA · 1815 days ago · 8 km deep · 100 km away · felt by 1
  12. 1.822km NNE of San Ardo, CA · 1816 days ago · 4 km deep · 84 km away
  13. 2.99km SE of Kettleman City, CA · 1823 days ago · 29 km deep · 31 km away · felt by 1
  14. 1.513km NE of Coalinga, CA · 1826 days ago · 11 km deep · 38 km away
  15. 1.66km NNW of Cholame, CA · 1826 days ago · 8 km deep · 68 km away
  16. 1.99km NNE of New Idria, CA · 1829 days ago · 9 km deep · 78 km away
  17. 2.47km NW of Lemoore, CA · 1829 days ago · 19 km deep · 13 km away
  18. 1.510km SE of Avenal, CA · 1829 days ago · 11 km deep · 38 km away
  19. 1.66km WSW of Kettleman City, CA · 1831 days ago · 4 km deep · 33 km away
  20. 3.24km NNW of Cholame, CA · 1832 days ago · 4 km deep · 68 km away · felt by 4

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73645840. Read Sun, Oct 4, 2026, 12:49 PM UTC.