QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Kettleman City, CA

No earthquake was likely felt in Kettleman City in the 24 hours to 1:04 am PST (09:04 UTC). The last one was M 2.0, 13 km (8 mi) S, at 5:43 pm PST on 3 November 2026, estimated intensity II (weak) in town. Every earthquake near Kettleman City

This page: a magnitude 1.7 earthquake was recorded 8 km (5 mi) south-southwest of Kettleman City, CA, at 5:43 pm PDT on 1 October 2019 (00:43 UTC), 11 km deep.

USGS: 8km SSW of Kettleman City, CA

95 km (59 mi) SSW of Fresno, CA · 53 km (33 mi) SW of Hanford, CA

5:43 pm PDT, Oct 1, 2019 · · 11 km deep · released about 12 lb of TNT

Every earthquake near Kettleman City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 22 kmSan Luis Obispo County 74 kmFresno County 96 kmTulare County 114 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
5:43 pm PDT on 1 October 2019 ()
Where
8 km (5 mi) south-southwest of Kettleman City, CA · earthquakes near Kettleman City
Magnitude
M 1.7 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Kings County, 22 km NE
Nearest mapped fault
Great Valley thrust fault system, 10 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 2588 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 7 km (4 mi) from the epicentre. In Kettleman City, 8 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: Avenal.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 900,000× the energy of this one
  3. Around the size people start to feel M 3.0 80× the energy of this one
  4. This earthquake M 1.7 about 12 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 4.0 on 2018-11-27 — about 2,500 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 42 km NW of this epicentre
  2. 6.5 1922 Parkfield, California Earthquake · 31 km SW of this epicentre
  3. 6.4 1901 Parkfield, California Earthquake · 45 km W of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 36 km WSW of this epicentre
  5. 5.6 8 km SW of Huron, California · 26 km NNW 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 35.9448, -120.0013. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 22 km (14 mi) NE earthquakes near Kings County
San Luis Obispo County, CA 74 km (46 mi) SSW earthquakes near San Luis Obispo County
Fresno County, CA 96 km (60 mi) NNE earthquakes near Fresno County
Tulare County, CA 114 km (71 mi) ENE earthquakes near Tulare County
San Benito County, CA 122 km (76 mi) NW earthquakes near San Benito County
Monterey County, CA 123 km (76 mi) WNW earthquakes near Monterey County

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

Aftershocks so far

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

  1. 1.8 8km ESE of Kettleman City, CA
  2. 2.1 8km WSW of Huron, CA
  3. 2.1 8km SW of Huron, CA
  4. 1.8 7km SSE of Huron, CA
  5. 1.8 25km W of Alpaugh, CA
  6. 2.3 11km NW of Parkfield, CA
  7. 2.4 16km NNE of Coalinga, CA
  8. 1.5 9km NNW of Cholame, CA
  9. 1.6 36km E of Cholame, CA
  10. 2.8 8km SSW of Kettleman City, CA
  11. 1.7 5km S of Kettleman City, CA
  12. 1.8 4km S of Kettleman City, CA
  13. 2.0 7km SSW of Kettleman City, CA
  14. 1.9 22km SSE of Kettleman City, CA
  15. 1.8 17km NNE of Coalinga, 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.