QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Coalinga, CA

No earthquake was likely felt in Coalinga in the 24 hours to 11:24 am PST (19:24 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 2.0 earthquake was recorded 12 km (8 mi) north-northwest of Coalinga, CA, at 3:56 pm PDT on 13 October 2020 (22:56 UTC), 13 km deep. 1 person has reported feeling it to USGS.

USGS: 12km NNW of Coalinga, CA

80 km (50 mi) SW of Fresno, CA

3:56 pm PDT, Oct 13, 2020 · · 13 km deep · released about 35 lb of TNT

10 km30 km60 km120 km N Kings County 55 kmSan Benito County 74 kmMonterey County 83 kmFresno County 87 kmSan Luis Obispo County 95 kmMerced County 110 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
3:56 pm PDT on 13 October 2020 ()
Where
12 km (8 mi) north-northwest of Coalinga, CA · earthquakes near Coalinga
Magnitude
M 2.0 (md)
Depth
13 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Kings County, 55 km ESE
Nearest mapped fault
Great Valley thrust fault system, 11 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 2212 days ago

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, 12 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: Huron.

How big was it?

This earthquake released about 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 2,400 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 · 7 km ESE of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 29 km SSW of this epicentre
  3. 6.1 Northwest of Huron, California · 34 km NNW of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 48 km S of this epicentre
  5. 5.8 29 km NE of San Lucas, California · 34 km W 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 36.2453, -120.3930. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 55 km (34 mi) ESE earthquakes near Kings County
San Benito County, CA 74 km (46 mi) WNW earthquakes near San Benito County
Monterey County, CA 83 km (51 mi) W earthquakes near Monterey County
Fresno County, CA 87 km (54 mi) NE earthquakes near Fresno County
San Luis Obispo County, CA 95 km (59 mi) S earthquakes near San Luis Obispo County
Merced County, CA 110 km (68 mi) NNW earthquakes near Merced County

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

Aftershocks so far

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

  1. 1.7 11km ENE of Coalinga, CA
  2. 1.7 8km E of Coalinga, CA
  3. 2.0 14km NW of Parkfield, CA
  4. 1.6 22km ENE of San Ardo, CA
  5. 2.7 13km WSW of Parkfield, CA
  6. 2.5 10km NNE of Kettleman City, CA
  7. 1.9 18km W of New Idria, CA
  8. 2.5 13km E of New Idria, CA
  9. 1.7 18km NW of Parkfield, CA
  10. 2.6 18km NW of Parkfield, CA
  11. 1.9 6km E of Huron, CA
  12. 1.5 22km ENE of San Ardo, CA
  13. 2.4 21km NW of Parkfield, CA
  14. 2.0 24km ENE of San Ardo, CA
  15. 1.7 22km ENE of San Ardo, 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.