Earthquake · reviewed by a seismologist
M 1.7md
Earthquake near Coalinga, CA
No earthquake was likely felt in Coalinga in the 24 hours to 7:12 pm PST (03:12 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 27 km (17 mi) north of Coalinga, CA, at 4:07 am PDT on 19 June 2023 (11:07 UTC), 8.8 km deep.
USGS: 14km SSW of Cantua Creek, CA
68 km (42 mi) SW of Fresno, CA
- When
- 4:07 am PDT on 19 June 2023 ()
- Where
- 27 km (17 mi) north of Coalinga, CA · earthquakes near Coalinga
- Magnitude
- M 1.7 (md)
- Depth
- 8.8 km below the surface
- Felt
- no reports yet
- Nearest
- Kings County, 61 km SE
- Nearest mapped fault
- Great Valley thrust fault system, under 1 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 1238 days ago
Earthquake alerts for Coalinga, CA
Get a notification in this browser when USGS records an earthquake near Coalinga, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 9 km (6 mi) from the epicentre. In Coalinga, 27 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.
Earthquakes near other towns within 30 km: San Joaquin.
How big was it?
This earthquake released about 12 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.
- Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 870,000× the energy of this one
- Around the size people start to feel M 3.0 78× the energy of this one
- This earthquake M 1.7 about 12 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 2,500 times the energy of this one.
Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1983 Coalinga, California Earthquake · 18 km SSE of this epicentre
- 6.4 1901 Parkfield, California Earthquake · 44 km SSW of this epicentre
- 6.1 Northwest of Huron, California · 24 km WNW of this epicentre
- 5.8 29 km NE of San Lucas, California · 37 km WSW of this epicentre
- 5.6 8 km SW of Huron, California · 33 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 36.3843, -120.3745. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 61 km (38 mi) | SE | earthquakes near Kings County |
| San Benito County, CA | 68 km (43 mi) | WNW | earthquakes near San Benito County |
| Fresno County, CA | 77 km (48 mi) | ENE | earthquakes near Fresno County |
| Monterey County, CA | 86 km (53 mi) | W | earthquakes near Monterey County |
| Merced County, CA | 95 km (59 mi) | NNW | earthquakes near Merced County |
| Madera County, CA | 107 km (67 mi) | NNE | earthquakes near Madera 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.
- 3.0 22 km NNE of San Ardo, CA
- 1.6 10 km W of Huron, CA
- 2.0 13 km NW of Parkfield, CA
- 1.7 23 km WSW of New Idria, CA
- 1.7 19 km NW of Parkfield, CA
- 2.1 23 km ENE of San Lucas, CA
- 1.7 2 km S of Avenal, CA
- 1.9 2 km SE of Avenal, CA
- 2.9 2 km SSE of Avenal, CA
- 1.8 24 km NNE of New Idria, CA
- 1.6 21 km SW of New Idria, CA
- 1.7 12 km S of New Idria, CA
- 1.7 16 km NNW of Coalinga, CA
- 1.9 20 km NNE of Coalinga, CA
- 2.5 10 km SSW 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.