QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Lamont, CA

No earthquake was likely felt in Lamont in the 24 hours to 6:41 am PST (14:41 UTC). The last one was M 2.8, 10 km (6 mi) SW, at 2:35 am PDT on 29 July 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Lamont

This page: a magnitude 2.1 earthquake was recorded 24 km (15 mi) northeast of Lamont, CA, at 2:17 pm PDT on 12 April 2017 (21:17 UTC), 6.5 km deep. 2 people have reported feeling it to USGS.

USGS: 24km NE of Lamont, CA

28 km (18 mi) ENE of Bakersfield, CA

2:17 pm PDT, Apr 12, 2017 · · 6.5 km deep · released about 41 lb of TNT

10 km30 km60 km120 km N Kern County 7 kmTulare County 91 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
2:17 pm PDT on 12 April 2017 ()
Where
24 km (15 mi) northeast of Lamont, CA · earthquakes near Lamont
Magnitude
M 2.1 (ml)
Depth
6.5 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Kern County, 7 km S
Nearest mapped fault
Edison fault, 12 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 3467 days ago

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 16 km (10 mi) from the epicentre. In Lamont, 24 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: Arvin, Weedpatch, Oildale, Bakersfield, Bodfish, Bear Valley Springs.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 19 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.8 Near Bakersfield, California · 14 km SSW of this epicentre
  2. 5.7 11km N of Lamont, CA · 16 km WSW of this epicentre
  3. 5.6 19km N of Tehachapi, CA · 27 km ESE of this epicentre
  4. 5.6 14km NNW of Tehachapi, CA · 28 km SE of this epicentre
  5. 5.5 13km ENE of Grapevine, CA · 47 km S 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 35.4103, -118.7323. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 7 km (4 mi) S earthquakes near Kern County
Tulare County, CA 91 km (57 mi) N earthquakes near Tulare County
Kings County, CA 122 km (76 mi) NW earthquakes near Kings County
Ventura County, CA 123 km (76 mi) SSW earthquakes near Ventura County
Santa Barbara County, CA 154 km (95 mi) SW earthquakes near Santa Barbara County

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

Aftershocks so far

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

  1. 1.7 5km NW of Lamont, CA
  2. 1.8 26km SSW of Bodfish, CA
  3. 2.3 7km E of Oildale, CA
  4. 1.5 17km SSE of Bodfish, CA
  5. 1.6 26km NE of Arvin, CA
  6. 1.9 17km SSE of Bodfish, CA
  7. 2.2 20km ESE of Bodfish, CA
  8. 1.5 16km SSE of Bodfish, CA
  9. 1.6 16km SSE of Bodfish, CA
  10. 1.6 18km SSE of Bodfish, CA
  11. 1.8 17km SSE of Bodfish, CA
  12. 2.2 17km SSE of Bodfish, CA
  13. 1.6 14km ESE of Lake Isabella, CA
  14. 2.3 17km SSE of Bodfish, CA
  15. 2.0 17km SSE of Bodfish, 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.