QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Coalinga, CA

No earthquake was likely felt in Coalinga in the 24 hours to 8:51 am PST (16:51 UTC). The last one was M 2.3, 4 km (3 mi) SE, at 1:44 am PDT on 4 October 2026, estimated intensity II (weak) in town. Every earthquake near Coalinga

This page: a magnitude 1.6 earthquake was recorded 17 km (10 mi) north-northwest of Coalinga, CA, at 9:53 am PDT on 26 May 2019 (16:53 UTC), 11 km deep.

USGS: 16km NNW of Coalinga, CA

82 km (51 mi) SW of Fresno, CA

9:53 am PDT, May 26, 2019 · · 11 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Kings County 61 kmSan Benito County 68 kmMonterey County 77 kmFresno County 90 kmSan Luis Obispo County 98 kmMerced County 106 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
9:53 am PDT on 26 May 2019 ()
Where
17 km (10 mi) north-northwest of Coalinga, CA · earthquakes near Coalinga
Magnitude
M 1.6 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Kings County, 61 km ESE
Nearest mapped fault
Great Valley thrust fault system, 13 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 2724 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Coalinga, 17 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.

How big was it?

This earthquake released about 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 4,400 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 · 13 km ESE of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 30 km S of this epicentre
  3. 6.1 Northwest of Huron, California · 29 km NNW of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 28 km W of this epicentre
  5. 5.6 8 km SW of Huron, California · 30 km ESE 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 36.2665, -120.4562. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 61 km (38 mi) ESE earthquakes near Kings County
San Benito County, CA 68 km (42 mi) NW earthquakes near San Benito County
Monterey County, CA 77 km (48 mi) W earthquakes near Monterey County
Fresno County, CA 90 km (56 mi) NE earthquakes near Fresno County
San Luis Obispo County, CA 98 km (61 mi) S earthquakes near San Luis Obispo County
Merced County, CA 106 km (66 mi) NNW earthquakes near Merced 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 11km NNW of Kettleman City, CA
  2. 1.6 23km E of San Ardo, CA
  3. 2.6 11km N of Kettleman City, CA
  4. 2.0 10km NNW of New Idria, CA
  5. 1.9 19km SSW of Cantua Creek, CA
  6. 1.8 3km SSE of San Ardo, CA
  7. 1.6 4km SSE of San Ardo, CA
  8. 1.6 10km NW of Avenal, CA
  9. 1.5 22km NNE of San Ardo, CA
  10. 1.6 11km NW of Avenal, CA
  11. 1.6 22km WSW of New Idria, CA
  12. 2.9 20km S of Cantua Creek, CA
  13. 2.3 20km N of Coalinga, CA
  14. 2.0 10km NW of Avenal, CA
  15. 2.9 8km SW of Cantua Creek, 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.