QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

Earthquake near Buttonwillow, CA

No earthquake was likely felt in Buttonwillow in the 24 hours to 7:14 am PST (15:14 UTC). The last one was M 4.1, 82 km (51 mi) SE, at 3:38 am PDT on 12 July 2026, estimated intensity II (weak) in town; 798 felt reports to USGS. Every earthquake near Buttonwillow

This page: a magnitude 3.3 earthquake was recorded 11 km (7 mi) southwest of Buttonwillow, CA, at 10:10 pm PST on 24 February 2025 (06:10 UTC), less than 1 km deep. 8 people have reported feeling it to USGS.

USGS: 11 km SW of Buttonwillow, CA

47 km (29 mi) W of Bakersfield, CA

10:10 pm PST, Feb 24, 2025 · · -0.7 km deep · released about 1.1 tons of TNT

10 km30 km60 km120 km N Kern County 75 kmSan Luis Obispo County 81 kmKings County 85 kmSanta Barbara County 99 kmVentura County 115 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
10:10 pm PST on 24 February 2025 ()
Where
11 km (7 mi) southwest of Buttonwillow, CA · earthquakes near Buttonwillow
Magnitude
M 3.3 (ml)
Depth
-0.7 km below the surface
Felt
8 reports · strongest reported intensity IV
Nearest
Kern County, 75 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 555 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 49 km (30 mi) from the epicentre. In Buttonwillow, 11 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Buttonwillow 11 km, intensity III · Taft 23 km, intensity II · Shafter 32 km, intensity II · Maricopa 34 km, intensity II · Lost Hills 34 km, intensity II · Wasco 35 km, intensity II · Rosedale 38 km, intensity II · Bakersfield 49 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 150,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 6,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,700× the energy of this one
  4. This earthquake M 3.3 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.4× more

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 5.2 on 2024-08-07 — about 900 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.2 21km SW of Lamont, California · 46 km ESE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 35.3335, -119.5550. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 75 km (47 mi) E earthquakes near Kern County
San Luis Obispo County, CA 81 km (51 mi) W earthquakes near San Luis Obispo County
Kings County, CA 85 km (53 mi) NNW earthquakes near Kings County
Santa Barbara County, CA 99 km (61 mi) SSW earthquakes near Santa Barbara County
Ventura County, CA 115 km (71 mi) SSE earthquakes near Ventura County
Tulare County, CA 122 km (76 mi) NE earthquakes near Tulare County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

31 earthquakes have been recorded within 50 km since this one.

  1. 1.6 6 km SW of Shafter, CA
  2. 2.5 20 km NE of Maricopa, CA
  3. 3.7 20 km NE of Maricopa, CA
  4. 1.7 25 km SW of Maricopa, CA
  5. 1.9 22 km NW of Grapevine, CA
  6. 1.5 24 km NW of Grapevine, CA
  7. 1.9 25 km NW of Grapevine, CA
  8. 1.5 18 km SE of Buttonwillow, CA
  9. 1.9 22 km E of Maricopa, CA
  10. 2.2 23 km E of Maricopa, CA
  11. 1.8 25 km ENE of Maricopa, CA
  12. 1.9 12 km SW of Taft, CA
  13. 2.3 24 km NW of Grapevine, CA
  14. 2.0 14 km E of Buttonwillow, CA
  15. 1.6 11 km E of Simmler, CA

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.