QuakeIndex

Every recorded earthquake within 30 km

Earthquakes near Tracy, CA

No earthquake was likely felt in Tracy in the 24 hours to 1:01 am PDT (08:01 UTC). The last one was M 3.5, 36 km (22 mi) S, at 7:21 am PDT on 27 September 2026, estimated intensity II (weak) in town; 8 felt reports to USGS.

M 2.5

Latest: 4:27 pm PDT on 2 May 2026 · 24 km (15 mi) SW of Tracy, CA

The most recent earthquake of M2.5 or more near Tracy was M 2.5, 24 km (15 mi) SW of Tracy, CA, at 4:27 pm PDT on 2 May 2026, 3 km deep. 2 people reported feeling it to USGS. The estimated shaking in Tracy was intensity II (weak), felt by some people at rest indoors. 5 smaller earthquakes have been recorded near Tracy since; the newest is first in the list below.

No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Tracy in the last 24 hours.

Last 24 hours
0
Last 7 days
0
Last 30 days
2 · an average 30 days here since 2016: 1.1
Last 12 months
13 · largest M 2.5 on 2 May 2026
Since 2016
150 earthquakes of M1.5 or more within 30 km
Largest since 2016
M 3.5 on 28 February 2024, 24 km (15 mi) NW of Tracy, CA
Reported felt
41 of them have felt reports to USGS
Nearest mapped fault
Great Valley thrust fault system, 10 km from its surface trace

USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.

The last 30 days

Sep 14 Sep 29 Oct 13
Each mark is a day's largest quake within range; its size is the magnitude. Too few days here have any earthquake at all to draw a normal range.

The latest 50

  1. 1.7 27 km (16 mi) SW of Tracy, CA
  2. 2.0 25 km (16 mi) WSW of Tracy, CA
  3. 1.6 18 km (11 mi) W of Tracy, CA
  4. 1.9 18 km (11 mi) W of Tracy, CA
  5. 1.7 27 km (17 mi) WNW of Tracy, CA
  6. 2.5 24 km (15 mi) SW of Tracy, CA · felt by 2
  7. 1.7 29 km (18 mi) SW of Tracy, CA · felt by 1
  8. 1.7 23 km (14 mi) WSW of Tracy, CA
  9. 1.5 28 km (17 mi) WSW of Tracy, CA · felt by 1
  10. 1.6 28 km (17 mi) WSW of Tracy, CA
  11. 1.6 28 km (17 mi) SW of Tracy, CA
  12. 1.7 28 km (17 mi) WSW of Tracy, CA
  13. 1.6 29 km (18 mi) SW of Tracy, CA
  14. 1.9 28 km (17 mi) WSW of Tracy, CA
  15. 2.0 24 km (15 mi) NNE of Tracy, CA
  16. 1.6 30 km (19 mi) W of Tracy, CA
  17. 1.8 29 km (18 mi) W of Tracy, CA
  18. 1.8 30 km (19 mi) W of Tracy, CA
  19. 1.5 30 km (18 mi) SW of Tracy, CA · felt by 1
  20. 1.9 15 km (10 mi) W of Tracy, CA
  21. 2.2 24 km (15 mi) NW of Tracy, CA
  22. 1.9 24 km (15 mi) NW of Tracy, CA
  23. 1.8 30 km (18 mi) NW of Tracy, CA · felt by 2
  24. 1.6 30 km (19 mi) SW of Tracy, CA
  25. 1.6 30 km (19 mi) SW of Tracy, CA
  26. 2.5 30 km (18 mi) SW of Tracy, CA · felt by 9
  27. 1.7 19 km (12 mi) W of Tracy, CA
  28. 1.6 30 km (18 mi) SW of Tracy, CA
  29. 1.5 28 km (18 mi) SW of Tracy, CA
  30. 2.9 24 km (15 mi) NW of Tracy, CA · felt by 163
  31. 1.6 25 km (16 mi) NW of Tracy, CA
  32. 2.3 25 km (15 mi) NW of Tracy, CA · felt by 5
  33. 3.5 24 km (15 mi) NW of Tracy, CA · felt by 589
  34. 1.6 24 km (15 mi) NW of Tracy, CA
  35. 1.6 23 km (14 mi) NW of Tracy, CA
  36. 1.7 23 km (14 mi) NNW of Tracy, CA
  37. 1.7 28 km (18 mi) NW of Tracy, CA
  38. 1.5 29 km (18 mi) S of Tracy, CA
  39. 1.8 20 km (13 mi) WNW of Tracy, CA
  40. 2.0 18 km (11 mi) SSE of Tracy, CA
  41. 1.6 29 km (18 mi) SW of Tracy, CA · felt by 3
  42. 1.7 29 km (18 mi) SW of Tracy, CA
  43. 1.6 29 km (18 mi) SW of Tracy, CA
  44. 1.6 29 km (18 mi) S of Tracy, CA
  45. 1.6 26 km (16 mi) NW of Tracy, CA
  46. 1.7 20 km (13 mi) SE of Tracy, CA
  47. 2.3 19 km (12 mi) SE of Tracy, CA · felt by 1
  48. 1.9 18 km (11 mi) W of Tracy, CA
  49. 1.7 28 km (17 mi) WSW of Tracy, CA
  50. 1.8 25 km (15 mi) WSW of Tracy, CA

From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Tracy time. Distances are from the town centre. Quakes USGS named after Tracy are listed even when they are further out.

Show these earthquakes on your own site: a free card with the latest quakes near Tracy, for a local news site, school or neighborhood page.

On the map

The white circle is Tracy; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Estimated shaking in Tracy

The strongest shaking in Tracy from a quake since 2016 is estimated at intensity III (weak), from the M 3.0 on 11 June 2019, 17 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.

MagnitudeWhenDistanceShaking in Tracy (est.)
M 3.0 17 kmIII · Weak · felt by 70
M 3.5 24 kmIII · Weak · felt by 589
M 3.0 25 kmII · Weak · felt by 267
M 2.9 24 kmII · Weak · felt by 163
M 2.8 17 kmII · Weak · felt by 14

An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. All 5 reach intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.

Before 2016

The USGS record since 1900 lists 6 earthquakes of M5 or more within 50 km of Tracy; the five largest:

  1. 5.8 The 1980 Livermore, California Earthquake · 32 km WNW of Tracy
  2. 5.7 15 km NE of East Foothills, California · 37 km SW of Tracy
  3. 5.5 6 km NNE of East Foothills, California · 46 km SW of Tracy
  4. 5.4 9 km NE of Livermore, California · 25 km W of Tracy
  5. 5.3 6 km E of East Foothills, California · 48 km SW of Tracy

USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.

Nearest mapped faults

USGS Quaternary Fault and Fold Database. Near is not the same as on.

Nearby towns

Byron 23 km · Discovery Bay 24 km · Livermore 31 km · Brentwood 32 km · Oakley 38 km · Modesto 39 km · Patterson 40 km

Be ready

Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.