QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Avenal, CA

No earthquake was likely felt in Avenal in the 24 hours to 11:42 am PST (19:42 UTC). The last one was M 2.5, 7 km (4 mi) NW, at 12:34 am PDT on 18 August 2026, estimated intensity II (weak) in town. Every earthquake near Avenal

This page: a magnitude 1.7 earthquake was recorded 7 km (4 mi) east of Avenal, CA, at 7:33 pm PDT on 17 April 2022 (02:33 UTC), 5.5 km deep.

USGS: 7km E of Avenal, CA

89 km (55 mi) SSW of Fresno, CA · 50 km (31 mi) SW of Hanford, CA

7:33 pm PDT, Apr 17, 2022 · · 5.5 km deep · released about 10 lb of TNT

10 km30 km60 km120 km N Kings County 22 kmSan Luis Obispo County 78 kmFresno County 90 kmSan Benito County 114 kmMonterey County 116 kmTulare County 117 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
7:33 pm PDT on 17 April 2022 ()
Where
7 km (4 mi) east of Avenal, CA · earthquakes near Avenal
Magnitude
M 1.7 (md)
Depth
5.5 km below the surface
Felt
no reports yet
Nearest
Kings County, 22 km ENE
Nearest mapped fault
Great Valley thrust fault system, 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 1669 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 11 km (7 mi) from the epicentre. In Avenal, 7 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.

Likely felt in: Avenal 7 km, intensity II · Kettleman City 8 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 10 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 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 4.3 on 2019-12-17 — about 8,200 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 · 34 km NW of this epicentre
  2. 6.5 1922 Parkfield, California Earthquake · 34 km SSW of this epicentre
  3. 6.4 1901 Parkfield, California Earthquake · 40 km W of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 36 km SW of this epicentre
  5. 5.6 8 km SW of Huron, California · 17 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 36.0132, -120.0517. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 22 km (14 mi) ENE earthquakes near Kings County
San Luis Obispo County, CA 78 km (49 mi) SSW earthquakes near San Luis Obispo County
Fresno County, CA 90 km (56 mi) NNE earthquakes near Fresno County
San Benito County, CA 114 km (71 mi) NW earthquakes near San Benito County
Monterey County, CA 116 km (72 mi) WNW earthquakes near Monterey County
Tulare County, CA 117 km (72 mi) ENE earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.6 3km WSW of Avenal, CA
  2. 1.6 18km NW of Parkfield, CA
  3. 2.0 8km E of Huron, CA
  4. 2.0 11km NW of Parkfield, CA
  5. 1.7 5km NW of Parkfield, CA
  6. 1.9 10km NW of Parkfield, CA
  7. 1.8 11km NW of Parkfield, CA
  8. 1.7 7km SSW of Huron, CA
  9. 1.5 10km NNW of Avenal, CA
  10. 1.5 10km NNW of Avenal, CA
  11. 2.3 6km N of Lemoore, CA
  12. 1.9 10km N of Avenal, CA
  13. 1.6 16km NW of Parkfield, CA
  14. 2.1 6km SSE of Riverdale, CA
  15. 2.2 16km NW of Parkfield, 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.