QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Frazier Park, CA

No earthquake was likely felt in Frazier Park in the 24 hours to 12:23 pm PST (20:23 UTC). The last one was M 3.8, 51 km (31 mi) SSE, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Frazier Park

This page: a magnitude 1.9 earthquake was recorded 13 km (8 mi) northwest of Frazier Park, CA, at 11:47 pm PDT on 23 October 2022 (06:47 UTC), 16 km deep.

USGS: 10km WSW of Grapevine, CA

49 km (30 mi) S of Bakersfield, CA · 115 km (71 mi) NNW of Los Angeles, CA

11:47 pm PDT, Oct 23, 2022 · · 16 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Kern County 56 kmVentura County 62 kmSanta Barbara County 101 kmLos Angeles County 107 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
11:47 pm PDT on 23 October 2022 ()
Where
13 km (8 mi) northwest of Frazier Park, CA · earthquakes near Frazier Park
Magnitude
M 1.9 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Kern County, 56 km NNE
Nearest mapped fault
Pleito fault, 6 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 1480 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Frazier Park, 13 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: Pine Mountain Club, Lebec.

How big was it?

This earthquake released about 24 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.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 4.1 on 2016-03-12 — about 2,000 times the energy of this one.

Before 2016, the USGS record lists 20 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 6 km NE of this epicentre
  2. 6.0 Tejon Pass, California · 13 km E of this epicentre
  3. 5.8 Near Bakersfield, California · 48 km NNE of this epicentre
  4. 5.8 13km WNW of Grapevine, CA · 7 km NNW of this epicentre
  5. 5.5 Southwest of Tejon Pass, California · 24 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 34.9138, -119.0373. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 56 km (35 mi) NNE earthquakes near Kern County
Ventura County, CA 62 km (39 mi) S earthquakes near Ventura County
Santa Barbara County, CA 101 km (63 mi) WSW earthquakes near Santa Barbara County
Los Angeles County, CA 107 km (66 mi) SE earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 2.0 13km NNE of Grapevine, CA
  2. 3.4 13km NNE of Grapevine, CA
  3. 1.7 17km N of Fillmore, CA
  4. 1.5 11km NNW of Piru, CA
  5. 1.6 5km NW of Grapevine, CA
  6. 1.7 5km NNW of Grapevine, CA
  7. 3.1 14km E of Arvin, CA
  8. 1.9 15km NNW of Grapevine, CA
  9. 1.6 15km SSE of Arvin, CA
  10. 1.8 3km W of Lamont, CA
  11. 1.6 2km WNW of Lamont, CA
  12. 1.8 14km E of Arvin, CA
  13. 2.0 11km SSW of Bakersfield, CA
  14. 1.8 8km SSW of Lamont, CA
  15. 1.9 14km E of Arvin, 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.