QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Coalinga, CA

No earthquake was likely felt in Coalinga in the 24 hours to 2:06 am PST (10:06 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 1.7 earthquake was recorded 33 km (21 mi) northwest of Coalinga, CA, at 4:21 am PDT on 10 June 2022 (11:21 UTC), 16 km deep.

USGS: 10km ESE of New Idria, CA

82 km (51 mi) WSW of Fresno, CA

4:21 am PDT, Jun 10, 2022 · · 16 km deep · released about 10 lb of TNT

10 km30 km60 km120 km N San Benito County 53 kmMonterey County 69 kmKings County 76 kmMerced County 91 kmFresno County 92 kmSan Luis Obispo County 111 kmMadera 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
4:21 am PDT on 10 June 2022 ()
Where
33 km (21 mi) northwest of Coalinga, CA · earthquakes near Coalinga
Magnitude
M 1.7 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
San Benito County, 53 km WNW
Nearest mapped fault
Great Valley thrust fault system, 15 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 1616 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, 33 km away, the estimate is intensity I (not felt). 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 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 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× 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 4.0 on 2018-11-27 — about 2,900 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 · 29 km SE of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 43 km S of this epicentre
  3. 6.1 Northwest of Huron, California · 13 km NNW of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 20 km WSW of this epicentre
  5. 5.6 8 km SW of Huron, California · 46 km SE 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 36.3845, -120.5695. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 53 km (33 mi) WNW earthquakes near San Benito County
Monterey County, CA 69 km (43 mi) WSW earthquakes near Monterey County
Kings County, CA 76 km (47 mi) ESE earthquakes near Kings County
Merced County, CA 91 km (57 mi) N earthquakes near Merced County
Fresno County, CA 92 km (57 mi) ENE earthquakes near Fresno County
San Luis Obispo County, CA 111 km (69 mi) S earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.5 16km SE of Pinnacles, CA
  2. 1.9 10km N of Avenal, CA
  3. 1.5 16km SE of Pinnacles, CA
  4. 1.7 16km SE of Pinnacles, CA
  5. 1.7 14km SSW of Cantua Creek, CA
  6. 1.6 16km NW of Parkfield, CA
  7. 1.8 15km E of New Idria, CA
  8. 2.2 16km NW of Parkfield, CA
  9. 1.9 9km SE of Pinnacles, CA
  10. 1.6 10km NNW of Avenal, CA
  11. 2.5 13km SE of Pinnacles, CA
  12. 2.3 24km NE of Pinnacles, CA
  13. 2.3 16km SE of Pinnacles, CA
  14. 1.6 16km SE of Pinnacles, CA
  15. 2.3 19km WNW of New Idria, 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.