California earthquakes

M2.1 earthquake 26km SW of Gustine, CA

A magnitude 2.1 earthquake struck 26km SW of Gustine, CA on Sun, Dec 26, 2021, 6:56 PM PST (02:56 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.4 9km SSW of Tres Pinos, CA. This one was a foreshock.

Gustine forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-12-27 02:56:00 UTC
Depth
7.0 km (4.4 mi), shallow
Epicenter
37.068° N, 121.178° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
50°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 39 in the 30 days before it.

After

  1. 2.016km N of New Idria, CA · 1742 days ago · 12 km deep · 72 km away
  2. 2.74km NW of Pinnacles, CA · 1742 days ago · 2 km deep · 56 km away · felt by 4
  3. 1.728km SSW of South Dos Palos, CA · 1741 days ago · 2 km deep · 47 km away
  4. 1.93km N of Pinnacles, CA · 1740 days ago · 8 km deep · 57 km away · felt by 1
  5. 2.05km ESE of Aromas, CA · 1738 days ago · 5 km deep · 43 km away
  6. 2.19km SSW of Tres Pinos, CA · 1738 days ago · 2 km deep · 42 km away
  7. 2.122km ENE of San Lucas, CA · 1737 days ago · 6 km deep · 99 km away
  8. 2.012km SE of Pinnacles, CA · 1737 days ago · 0 km deep · 68 km away
  9. 2.19km E of Alum Rock, CA · 1736 days ago · 9 km deep · 60 km away
  10. 1.510km ENE of Milpitas, CA · 1735 days ago · 8 km deep · 72 km away
  11. 2.410km SE of Pinnacles, CA · 1732 days ago · 9 km deep · 67 km away · felt by 3
  12. 2.110km SE of Pinnacles, CA · 1732 days ago · 9 km deep · 67 km away
  13. 1.74km W of Pinnacles, CA · 1731 days ago · 1 km deep · 59 km away
  14. 1.710km SE of Pinnacles, CA · 1731 days ago · 9 km deep · 66 km away
  15. 2.121km SE of Pinnacles, CA · 1731 days ago · 9 km deep · 76 km away
  16. 2.55km NNW of Pinnacles, CA · 1730 days ago · 3 km deep · 55 km away · felt by 1
  17. 1.711km NE of Milpitas, CA · 1730 days ago · 4 km deep · 75 km away
  18. 1.727km NE of Hollister, CA · 1730 days ago · 3 km deep · 4 km away
  19. 1.94km NE of Fairmead, CA · 1730 days ago · 22 km deep · 90 km away
  20. 1.52km NE of Union City, CA · 1729 days ago · 5 km deep · 94 km away
  21. 1.72km NE of Pinnacles, CA · 1728 days ago · 9 km deep · 58 km away
  22. 2.422km NE of San Lucas, CA · 1726 days ago · 7 km deep · 96 km away · felt by 1
  23. 1.62km NNE of Pinnacles, CA · 1726 days ago · 9 km deep · 58 km away
  24. 2.17km NNW of Pinnacles, CA · 1725 days ago · 4 km deep · 53 km away · felt by 1
  25. 2.111km SSW of Brentwood, CA · 1725 days ago · 18 km deep · 99 km away
  26. 1.99km E of Gilroy, CA · 1724 days ago · 5 km deep · 27 km away · felt by 2
  27. 2.112km S of Tres Pinos, CA · 1724 days ago · 5 km deep · 44 km away
  28. 2.39km E of Gilroy, CA · 1724 days ago · 6 km deep · 27 km away
  29. 1.98km E of Fremont, CA · 1723 days ago · 7 km deep · 82 km away · felt by 3
  30. 1.93km NNW of Pinnacles, CA · 1722 days ago · 8 km deep · 57 km away
  31. 1.77km ENE of Gilroy, CA · 1721 days ago · 9 km deep · 28 km away
  32. 2.02km SSE of Tres Pinos, CA · 1721 days ago · 7 km deep · 35 km away · felt by 1
  33. 2.217km SE of Pinnacles, CA · 1720 days ago · 7 km deep · 73 km away
  34. 1.65km SSW of Tres Pinos, CA · 1720 days ago · 7 km deep · 38 km away · felt by 1
  35. 1.64km NNW of Pinnacles, CA · 1719 days ago · 7 km deep · 55 km away
  36. 1.713km S of Tres Pinos, CA · 1718 days ago · 4 km deep · 45 km away
  37. 1.67km SW of Ridgemark, CA · 1717 days ago · 10 km deep · 40 km away
  38. 1.55km NE of Pinnacles, CA · 1716 days ago · 9 km deep · 56 km away
  39. 3.114km SSE of Tres Pinos, CA · 1715 days ago · 5 km deep · 45 km away · felt by 10
  40. 1.61km NE of Byron, CA · 1715 days ago · 4 km deep · 98 km away
  41. 2.714km SSE of Tres Pinos, CA · 1715 days ago · 5 km deep · 45 km away · felt by 2
  42. 1.914km SSE of Tres Pinos, CA · 1714 days ago · 4 km deep · 45 km away
  43. 2.216km W of Los Banos, CA · 1714 days ago · 8 km deep · 13 km away
  44. 1.67km ESE of Pinnacles, CA · 1713 days ago · 7 km deep · 63 km away
  45. 1.612km SW of Mountain House, CA · 1713 days ago · 18 km deep · 80 km away
  46. 1.512km SW of Mountain House, CA · 1713 days ago · 18 km deep · 80 km away
  47. 1.82km W of San Juan Bautista, CA · 1713 days ago · 7 km deep · 42 km away
  48. 1.86km ESE of Pinnacles, CA · 1712 days ago · 7 km deep · 63 km away
  49. 1.610km NNE of Morgan Hill, CA · 1711 days ago · 3 km deep · 40 km away · felt by 1
  50. 1.916km E of Seven Trees, CA · 1710 days ago · 4 km deep · 50 km away
  51. 2.27km SE of Fairmead, CA · 1710 days ago · 24 km deep · 92 km away
  52. 1.67km NNW of Pinnacles, CA · 1709 days ago · 8 km deep · 52 km away
  53. 1.730km NE of Pinnacles, CA · 1708 days ago · 12 km deep · 50 km away
  54. 1.516km SSE of Tres Pinos, CA · 1707 days ago · 5 km deep · 47 km away
  55. 1.616km NW of New Idria, CA · 1707 days ago · 9 km deep · 71 km away · felt by 1
  56. 1.911km SE of Pinnacles, CA · 1707 days ago · 7 km deep · 68 km away
  57. 1.822km NE of San Lucas, CA · 1707 days ago · 8 km deep · 92 km away
  58. 1.910km NNE of Pinnacles, CA · 1706 days ago · 6 km deep · 50 km away
  59. 1.93km NE of Pinnacles, CA · 1706 days ago · 9 km deep · 58 km away · felt by 1
  60. 2.511km SE of Pinnacles, CA · 1706 days ago · 3 km deep · 67 km away · felt by 6

The first 60 of 103.

Before

  1. 2.217km ENE of New Idria, CA · 1743 days ago · 15 km deep · 91 km away
  2. 2.07km NNW of Pinnacles, CA · 1743 days ago · 6 km deep · 53 km away · felt by 1
  3. 3.28km NNW of Pinnacles, CA · 1743 days ago · 6 km deep · 53 km away · felt by 23
  4. 1.912km N of Pinnacles, CA · 1743 days ago · 8 km deep · 47 km away
  5. 1.67km NNW of Pinnacles, CA · 1743 days ago · 6 km deep · 54 km away
  6. 2.211km SE of Pinnacles, CA · 1743 days ago · 3 km deep · 67 km away
  7. 1.85km NNE of Alum Rock, CA · 1744 days ago · 0 km deep · 68 km away · felt by 5
  8. 1.93km NNW of Pinnacles, CA · 1744 days ago · 7 km deep · 57 km away
  9. 1.91km E of Hollister, CA · 1747 days ago · 6 km deep · 31 km away · felt by 3
  10. 1.77km NW of Pinnacles, CA · 1750 days ago · 7 km deep · 54 km away
  11. 2.010km E of Alum Rock, CA · 1751 days ago · 9 km deep · 58 km away
  12. 1.63km SSE of San Juan Bautista, CA · 1753 days ago · 6 km deep · 42 km away
  13. 1.95km NNW of Hollister, CA · 1754 days ago · 10 km deep · 29 km away
  14. 1.89km NE of Morgan Hill, CA · 1754 days ago · 2 km deep · 38 km away
  15. 2.05km SSW of Tres Pinos, CA · 1754 days ago · 8 km deep · 38 km away
  16. 2.42km E of Pinnacles, CA · 1754 days ago · 4 km deep · 59 km away · felt by 2
  17. 1.614km SE of Tres Pinos, CA · 1754 days ago · 8 km deep · 40 km away
  18. 1.62km E of Pinnacles, CA · 1755 days ago · 3 km deep · 60 km away
  19. 2.32km SW of Discovery Bay, CA · 1755 days ago · 18 km deep · 100 km away
  20. 1.76km NW of Pinnacles, CA · 1756 days ago · 7 km deep · 54 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73668691. Read Sun, Oct 4, 2026, 10:46 AM UTC.