QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Avenal, CA

No earthquake was likely felt in Avenal in the 24 hours to 1:34 pm PST (21:34 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 2.6 earthquake was recorded 9 km (6 mi) northwest of Avenal, CA, at 4:06 pm PDT on 19 September 2019 (23:06 UTC), 12 km deep.

USGS: 9km NW of Avenal, CA

87 km (54 mi) SSW of Fresno, CA · 56 km (35 mi) WSW of Hanford, CA

4:06 pm PDT, Sep 19, 2019 · · 12 km deep · released about 210 lb of TNT

10 km30 km60 km120 km N Kings County 34 kmSan Luis Obispo County 79 kmFresno County 91 kmSan Benito County 100 kmMonterey County 103 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
4:06 pm PDT on 19 September 2019 ()
Where
9 km (6 mi) northwest of Avenal, CA · earthquakes near Avenal
Magnitude
M 2.6 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Kings County, 34 km E
Nearest mapped fault
Great Valley thrust fault system, 9 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 2600 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Avenal, 9 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 9 km, intensity II · Huron 17 km, intensity II · Coalinga 17 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 210 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 72,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 51,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.6× the energy of this one
  4. This earthquake M 2.6 about 210 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 140 times the energy of this one.

Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 21 km NNW of this epicentre
  2. 6.5 1922 Parkfield, California Earthquake · 36 km S of this epicentre
  3. 6.4 1901 Parkfield, California Earthquake · 29 km WSW of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 32 km SSW of this epicentre
  5. 5.8 1934 Parkfield, California Earthquake · 49 km WSW 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 36.0680, -120.1913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 34 km (21 mi) E earthquakes near Kings County
San Luis Obispo County, CA 79 km (49 mi) SSW earthquakes near San Luis Obispo County
Fresno County, CA 91 km (56 mi) NNE earthquakes near Fresno County
San Benito County, CA 100 km (62 mi) NW earthquakes near San Benito County
Monterey County, CA 103 km (64 mi) W earthquakes near Monterey County

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

Aftershocks so far

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

  1. 1.7 14km NNE of Coalinga, CA
  2. 2.5 6km N of Lemoore, CA
  3. 1.7 12km ENE of Coalinga, CA
  4. 2.0 12km NNW of Kettleman City, CA
  5. 2.0 12km SSW of Lemoore Station, CA
  6. 2.6 7km SE of Kettleman City, CA
  7. 3.2 6km SSE of Kettleman City, CA
  8. 2.3 15km NW of Parkfield, CA
  9. 1.5 13km NNW of Coalinga, CA
  10. 1.8 21km NW of Parkfield, CA
  11. 1.9 19km NW of Parkfield, CA
  12. 1.6 13km ESE of Coalinga, CA
  13. 1.8 16km NW of Parkfield, CA
  14. 1.7 16km NW of Parkfield, CA
  15. 1.9 14km WSW of Stratford, 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.