Earthquake near Kettleman City, CA

USGS: 13 km E of Kettleman City, California

88 km (55 mi) S of Fresno, CA · 40 km (25 mi) SSW of Hanford, CA

7:08 pm PST, Feb 21, 2017 · 2017-02-22 03:08 UTC · 22 km deep · released about 52 lb of TNT

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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: 7:08 pm PST on 21 February 2017 (2017-02-22 03:08 UTC)
Where: 14 km (9 mi) E of Kettleman City, CA · earthquakes near Kettleman City
Magnitude: M 2.2 (md)
Depth: 22 km below the surface
Felt: no reports yet
Nearest: Kings County, 9 km N
Nearest mapped fault: Great Valley thrust fault system, 10 km from its surface trace — near is not the same as on
Status: Reviewed by a seismologist

USGS · last changed by USGS 3509 days ago · we first saw it 3509 days ago

A magnitude 2.2 earthquake was recorded 14 km (9 mi) E of Kettleman City, CA, at 7:08 pm PST on 21 February 2017 (03:08 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Stratford, Corcoran, Avenal.

How big was it?

This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
Magna, Utah 2020 M 5.7 200,000× the energy of this one
Around the size people start to feel M 3.0 18× the energy of this one
This earthquake M 2.2 about 52 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 5 earthquakes of M5 or more within 50 km:

6.5 1922 Parkfield, California Earthquake · 48 km SW of this epicentre Mar 10, 1922
5.6 8 km SW of Huron, California · 35 km WNW of this epicentre Aug 4, 1985
5.5 1966 Parkfield, California Earthquake · 49 km WSW of this epicentre Jun 28, 1966
5.5 11 km NE of Coalinga, California · 49 km WNW of this epicentre Sep 9, 1983
5.0 4 km NE of Coalinga, California · 50 km WNW of this epicentre Dec 27, 1926

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

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Kings County, CA	9 km (6 mi)	N	earthquakes near Kings County
Fresno County, CA	87 km (54 mi)	N	earthquakes near Fresno County
San Luis Obispo County, CA	89 km (55 mi)	SW	earthquakes near San Luis Obispo County
Tulare County, CA	96 km (60 mi)	ENE	earthquakes near Tulare County
Kern County, CA	121 km (75 mi)	SE	earthquakes near Kern County
San Benito County, CA	134 km (83 mi)	WNW	earthquakes near San Benito 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.

1.6 17 km S of Kettleman City, California 09:10 UTC
1.6 20 km S of Kettleman City, California 20:45 UTC
1.7 13 km NNW of Avenal, California 17:14 UTC
1.6 14 km E of Parkfield, California 03:32 UTC
1.6 14 km SSW of Kettleman City, California 14:22 UTC
1.6 12 km SW of Huron, California 13:07 UTC
2.6 12 km NW of Avenal, California 13:04 UTC
2.6 12 km NW of Avenal, California 14:12 UTC
2.4 12 km NNW of Avenal, California 14:10 UTC
1.9 19 km SW of Corcoran, California 12:15 UTC
1.5 13 km NNW of Avenal, California 11:37 UTC
1.5 11 km NW of Avenal, California 08:46 UTC
1.5 13 km NNW of Avenal, California 07:48 UTC
1.6 12 km NNW of Avenal, California 06:36 UTC
1.6 12 km NW of Avenal, California 05:12 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 02:55 UTC. 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.