Earthquake · reviewed by a seismologist
M 2.5md
Earthquake near Home Garden, CA
USGS: 2 km W of Home Garden, California
in Hanford, CA · 54 km (34 mi) SSE of Fresno, CA
- When
- 12:35 am PST on 21 February 2017 ()
- Where
- 3 km (2 mi) W of Home Garden, CA · earthquakes near Home Garden
- Magnitude
- M 2.5 (md)
- Depth
- 3.1 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- Kings County, 29 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3509 days ago
A magnitude 2.5 earthquake was recorded 3 km (2 mi) W of Home Garden, CA, at 12:35 am PST on 21 February 2017 (08:35 UTC). 3 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: Hanford, Armona, Lucerne, Lemoore, Laton, Stratford.
How big was it?
This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 100,000× the energy of this one
- Magna, Utah 2020 M 5.7 72,000× the energy of this one
- Around the size people start to feel M 3.0 6.5× the energy of this one
- This earthquake M 2.5 about 150 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 one earthquake of M5 or more within 50 km:
- 5.6 8 km SW of Huron, California · 47 km WSW 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 36.3068, -119.6675. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 29 km (18 mi) | SSW | earthquakes near Kings County |
| Fresno County, CA | 51 km (31 mi) | N | earthquakes near Fresno County |
| Tulare County, CA | 80 km (50 mi) | E | earthquakes near Tulare County |
| Madera County, CA | 101 km (63 mi) | N | earthquakes near Madera County |
| San Luis Obispo County, CA | 124 km (77 mi) | SW | earthquakes near San Luis Obispo County |
| Kern County, CA | 136 km (85 mi) | SE | earthquakes near Kern County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
13 earthquakes have been recorded within 50 km since this one.
- 1.6 10 km SSW of Huron, California
- 2.2 7 km SE of Huron, California
- 2.6 9 km S of Huron, California
- 3.1 9 km SSE of Huron, California
- 1.7 9 km NNE of Avenal, California
- 1.9 19 km SW of Corcoran, California
- 1.6 6 km NNE of Avenal, California
- 1.8 8 km NE of Avenal, California
- 1.5 10 km NE of Avenal, California
- 1.7 4 km W of Huron, California
- 1.7 9 km S of Huron, California
- 1.5 9 km SSW of Huron, California
- 2.2 13 km E of Kettleman City, 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.