QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5mh

Earthquake near Maricopa, CA

No earthquake was likely felt in Maricopa in the 24 hours to 8:35 am PST (16:35 UTC). The last one was M 4.1, 51 km (32 mi) ESE, at 3:38 am PDT on 12 July 2026, estimated intensity III (weak) in town; 798 felt reports to USGS. Every earthquake near Maricopa

This page: a magnitude 1.5 earthquake was recorded 25 km (16 mi) south of Maricopa, CA, at 8:27 am PST on 18 November 2024 (16:27 UTC), less than 1 km deep.

USGS: 25 km S of Maricopa, CA

54 km (34 mi) NNE of Santa Barbara, CA · 130 km (81 mi) NW of Los Angeles, CA

8:27 am PST, Nov 18, 2024 · · -1.2 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Ventura County 59 kmSanta Barbara County 65 kmKern County 86 kmSan Luis Obispo County 111 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
8:27 am PST on 18 November 2024 ()
Where
25 km (16 mi) south of Maricopa, CA · earthquakes near Maricopa
Magnitude
M 1.5 (mh)
Depth
-1.2 km below the surface
Felt
no reports yet
Nearest
Ventura County, 59 km SSE
Nearest mapped fault
San Andreas fault, 11 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 723 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 10 km (6 mi) from the epicentre. In Maricopa, 25 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.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 5.2 on 2024-08-07 — about 380,000 times the energy of this one.

Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 42 km ENE of this epicentre
  2. 6.0 Tejon Pass, California · 49 km E of this epicentre
  3. 5.8 13km WNW of Grapevine, CA · 37 km ENE of this epicentre
  4. 5.5 Southwest of Tejon Pass, California · 42 km ESE of this epicentre
  5. 5.5 10 km NE of Toro Canyon, California · 38 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 34.8342, -119.4305. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 59 km (37 mi) SSE earthquakes near Ventura County
Santa Barbara County, CA 65 km (40 mi) WSW earthquakes near Santa Barbara County
Kern County, CA 86 km (53 mi) NE earthquakes near Kern County
San Luis Obispo County, CA 111 km (69 mi) NW earthquakes near San Luis Obispo County
Los Angeles County, CA 128 km (80 mi) ESE earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 1.6 2 km SW of Ojai, CA
  2. 1.9 23 km E of Maricopa, CA
  3. 1.6 24 km SW of Lamont, CA
  4. 1.8 20 km NW of Grapevine, CA
  5. 2.3 18 km NE of Taft, CA
  6. 1.8 24 km E of Maricopa, CA
  7. 1.6 22 km NW of Grapevine, CA
  8. 1.6 12 km NNW of Grapevine, CA
  9. 1.5 20 km NW of Grapevine, CA
  10. 1.6 5 km ENE of Ojai, CA
  11. 1.7 19 km NNW of Grapevine, CA
  12. 1.9 24 km NW of Grapevine, CA
  13. 1.7 25 km NW of Grapevine, CA
  14. 1.5 9 km N of Taft, CA
  15. 1.6 14 km NNW of Grapevine, 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.