QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Coalinga, CA

USGS: 10 km N of Coalinga, California

79 km (49 mi) SW of Fresno, CA

7:01 am PDT, Oct 8, 2016 · · 9.2 km deep · released about 36 lb of TNT

10 km30 km60 km120 km N Kings County 52 kmSan Benito County 77 kmMonterey County 86 kmFresno County 86 kmSan Luis Obispo County 95 kmMerced County 111 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
7:01 am PDT on 8 October 2016 ()
Where
11 km (7 mi) N of Coalinga, CA · earthquakes near Coalinga
Magnitude
M 2.0 (md)
Depth
9.2 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Kings County, 52 km ESE
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 3521 days ago

A magnitude 2.0 earthquake was recorded 11 km (7 mi) N of Coalinga, CA, at 7:01 am PDT on 8 October 2016 (14:01 UTC). 4 people have reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Huron.

How big was it?

This earthquake released about 36 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 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 4 km E of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 29 km SSW of this epicentre
  3. 6.1 Northwest of Huron, California · 36 km NW of this epicentre
  4. 6.0 2004 Parkfield, California Earthquake · 46 km S of this epicentre
  5. 5.8 29 km NE of San Lucas, California · 37 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 36.2357, -120.3608. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 52 km (32 mi) ESE earthquakes near Kings County
San Benito County, CA 77 km (48 mi) WNW earthquakes near San Benito County
Monterey County, CA 86 km (53 mi) W earthquakes near Monterey County
Fresno County, CA 86 km (53 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 111 km (69 mi) NNW earthquakes near Merced County

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

Aftershocks so far

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

  1. 1.9 23 km NNE of San Lucas, California
  2. 2.5 25 km NW of Parkfield, California
  3. 2.2 12 km NW of Parkfield, California
  4. 1.6 22 km ENE of San Ardo, California
  5. 2.4 4 km SW of Stratford, California
  6. 2.4 20 km NW of Parkfield, California
  7. 2.4 22 km NW of Parkfield, California
  8. 1.6 22 km ENE of San Lucas, California
  9. 1.6 3 km SSE of Avenal, California
  10. 1.5 2 km SE of Avenal, California
  11. 1.7 22 km NE of San Lucas, California
  12. 1.6 22 km NW of Parkfield, California
  13. 2.1 23 km NE of San Lucas, California
  14. 2.2 20 km NW of Parkfield, California
  15. 1.9 15 km WSW of Three Rocks, California

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.