Earthquake · reviewed by a seismologist
M 1.9md
Earthquake near Kettleman City, CA
USGS: 24 km S of Kettleman City, California
59 km (36 mi) W of Delano, CA · 111 km (69 mi) S of Fresno, CA
- When
- 10:59 pm PST on 23 December 2016 ()
- Where
- 25 km (15 mi) S of Kettleman City, CA · earthquakes near Kettleman City
- Magnitude
- M 1.9 (md)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Kings County, 33 km NNE
- Nearest mapped fault
- Great Valley thrust fault system, 24 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 1.9 earthquake was recorded 25 km (15 mi) S of Kettleman City, CA, at 10:59 pm PST on 23 December 2016 (06:59 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Lost Hills.
How big was it?
This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
- Magna, Utah 2020 M 5.7 580,000× the energy of this one
- Around the size people start to feel M 3.0 51× the energy of this one
- This earthquake M 1.9 about 19 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 6 earthquakes of M5 or more within 50 km; the five largest:
- 6.5 1922 Parkfield, California Earthquake · 31 km W of this epicentre
- 6.0 2004 Parkfield, California Earthquake · 41 km W of this epicentre
- 5.6 8 km SW of Huron, California · 45 km NNW of this epicentre
- 5.5 1966 Parkfield, California Earthquake · 34 km W of this epicentre
- 5.0 11 km NNE of Shandon, California · 38 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 35.7877, -119.9127. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 33 km (20 mi) | NNE | earthquakes near Kings County |
| San Luis Obispo County, CA | 66 km (41 mi) | SW | earthquakes near San Luis Obispo County |
| Fresno County, CA | 111 km (69 mi) | NNE | earthquakes near Fresno County |
| Tulare County, CA | 113 km (70 mi) | ENE | earthquakes near Tulare County |
| Kern County, CA | 118 km (73 mi) | ESE | earthquakes near Kern County |
| San Benito County, CA | 140 km (87 mi) | NW | earthquakes near San Benito County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
52 earthquakes have been recorded within 50 km since this one.
- 1.5 12 km NW of Avenal, California
- 1.5 11 km NW of Avenal, California
- 2.5 12 km NW of Avenal, California
- 2.8 12 km NW of Avenal, California
- 1.6 12 km NW of Avenal, California
- 1.5 12 km NW of Avenal, California
- 1.5 12 km ESE of Coalinga, California
- 1.6 12 km SW of Huron, California
- 2.6 12 km NW of Avenal, California
- 3.3 13 km NW of Avenal, California
- 1.5 13 km SSW of Kettleman City, California
- 2.3 15 km SSE of Avenal, California
- 1.9 15 km SSE of Avenal, California
- 1.8 Central California
- 1.9 15 km SSE of Avenal, 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
- 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.