QuakeIndex

Earthquake · automatic estimate, may change

M 1.3md

Earthquake near Avenal, CA

USGS: 9 km NNW of Avenal, CA

85 km (53 mi) SSW of Fresno, CA · 53 km (33 mi) WSW of Hanford, CA

5:56 pm PDT, Sep 29, 2026 · · 4.8 km deep · released about 2.9 lb of TNT

10 km30 km60 km120 km N Kings County 31 kmSan Luis Obispo County 81 kmFresno County 88 kmSan Benito County 101 kmMonterey County 105 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
5:56 pm PDT on 29 September 2026 ()
Where
9 km (6 mi) NNW of Avenal, CA · earthquakes near Avenal
Magnitude
M 1.3 (md)
Depth
4.8 km below the surface
Felt
no reports yet
Nearest
Kings County, 31 km E
Nearest mapped fault
Great Valley thrust fault system, 6 km from its surface trace — near is not the same as on
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 3 days ago

A magnitude 1.3 earthquake was recorded 9 km (6 mi) NNW of Avenal, CA, at 5:56 pm PDT on 29 September 2026 (00:56 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Huron, Coalinga, Kettleman City.

How big was it?

This earthquake released about 2.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 5,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 3,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 330× the energy of this one
  4. This earthquake M 1.3 about 2.9 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 29,000 times the energy of this one.

Before 2016, the USGS record lists 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 21 km NW of this epicentre
  2. 6.5 1922 Parkfield, California Earthquake · 38 km SSW of this epicentre
  3. 6.4 1901 Parkfield, California Earthquake · 32 km WSW of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 34 km SSW of this epicentre
  5. 5.6 8 km SW of Huron, California · 7 km N 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 36.0807, -120.1640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 31 km (19 mi) E earthquakes near Kings County
San Luis Obispo County, CA 81 km (50 mi) SSW earthquakes near San Luis Obispo County
Fresno County, CA 88 km (55 mi) NNE earthquakes near Fresno County
San Benito County, CA 101 km (63 mi) NW earthquakes near San Benito County
Monterey County, CA 105 km (65 mi) W earthquakes near Monterey County

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

Aftershocks so far

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

  1. 0.9 12 km NNE of Parkfield, CA
  2. 2.0 11 km NW of Parkfield, CA
  3. 2.0 8 km N of Coalinga, CA
  4. 1.5 3 km N of Cholame, 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.