Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Buttonwillow, CA
No earthquake was likely felt in Buttonwillow in the 24 hours to 6:17 am PST (14:17 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 1.9 earthquake was recorded 27 km (17 mi) west-northwest of Buttonwillow, CA, at 12:01 am PDT on 1 June 2020 (07:01 UTC), 9.3 km deep.
USGS: 27km WNW of Buttonwillow, CA
66 km (41 mi) WNW of Bakersfield, CA · 51 km (31 mi) WSW of Delano, CA
- When
- 12:01 am PDT on 1 June 2020 ()
- Where
- 27 km (17 mi) west-northwest of Buttonwillow, CA · earthquakes near Buttonwillow
- Magnitude
- M 1.9 (ml)
- Depth
- 9.3 km below the surface
- Felt
- no reports yet
- Nearest
- Kings County, 62 km N
- Nearest mapped fault
- San Andreas fault, 21 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2353 days ago
Earthquake alerts for Buttonwillow, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 11 km (7 mi) from the epicentre. In Buttonwillow, 27 km away, the estimate is intensity II (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.
Earthquakes near other towns within 30 km: Lost Hills.
How big was it?
This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
- Magna, Utah 2020 M 5.7 560,000× the energy of this one
- Around the size people start to feel M 3.0 50× the energy of this one
- This earthquake M 1.9 about 19 lb of TNT
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 4.9 on 2016-02-24 — about 32,000 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 35.5182, -119.7347. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 62 km (39 mi) | N | earthquakes near Kings County |
| San Luis Obispo County, CA | 66 km (41 mi) | WSW | earthquakes near San Luis Obispo County |
| Kern County, CA | 93 km (58 mi) | ESE | earthquakes near Kern County |
| Santa Barbara County, CA | 113 km (70 mi) | SSW | earthquakes near Santa Barbara County |
| Tulare County, CA | 117 km (73 mi) | NE | earthquakes near Tulare County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
48 earthquakes have been recorded within 50 km since this one.
- 1.9 21km ESE of Kettleman City, CA
- 1.8 22km SE of Kettleman City, CA
- 2.0 25km SE of Kettleman City, CA
- 1.8 20km ESE of Kettleman City, CA
- 1.8 8km ESE of Shafter, CA
- 3.0 15km SSE of Buttonwillow, CA
- 3.9 15km SSE of Buttonwillow, CA
- 1.6 22km WNW of Buttonwillow, CA
- 1.6 16km SW of Buttonwillow, CA
- 1.7 13km ESE of Kettleman City, CA
- 1.9 12km ESE of Kettleman City, CA
- 1.7 20km ESE of Kettleman City, CA
- 2.4 13km ESE of Kettleman City, CA
- 1.6 15km W of Taft, CA
- 1.7 17km WSW of Rosedale, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.