Earthquake · reviewed by a seismologist
M 2.3md
Earthquake near Sanger, CA
No earthquake was likely felt in Sanger in the 24 hours to 4:31 am PST (12:31 UTC). The last one was M 2.4, 5 km (3 mi) ESE, at 6:29 pm PDT on 13 October 2026, estimated intensity II (weak) in town. Every earthquake near Sanger
This page: a magnitude 2.3 earthquake was recorded 45 km (28 mi) northeast of Sanger, CA, at 5:46 pm PST on 22 February 2021 (01:46 UTC), 43 km deep. 1 person has reported feeling it to USGS.
USGS: 24km NNE of Squaw Valley, CA
60 km (38 mi) ENE of Fresno, CA · 50 km (31 mi) ENE of Clovis, CA
- When
- 5:46 pm PST on 22 February 2021 ()
- Where
- 45 km (28 mi) northeast of Sanger, CA · earthquakes near Sanger
- Magnitude
- M 2.3 (md)
- Depth
- 43 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Fresno County, 50 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2086 days ago
Earthquake alerts for Sanger, CA
Get a notification in this browser when USGS records an earthquake near Sanger, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Sanger, 45 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: Yokuts Valley.
How big was it?
This earthquake released about 91 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
- Magna, Utah 2020 M 5.7 120,000× the energy of this one
- Around the size people start to feel M 3.0 10× the energy of this one
- This earthquake M 2.3 about 91 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 since 1900 lists no earthquake of M5 or more within 50 km.
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 36.9363, -119.1412. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fresno County, CA | 50 km (31 mi) | WSW | earthquakes near Fresno County |
| Madera County, CA | 62 km (39 mi) | WNW | earthquakes near Madera County |
| Tulare County, CA | 85 km (53 mi) | SSE | earthquakes near Tulare County |
| Mariposa County, CA | 98 km (61 mi) | NW | earthquakes near Mariposa County |
| Mono County, CA | 111 km (69 mi) | NNE | earthquakes near Mono County |
| Kings County, CA | 113 km (70 mi) | SSW | earthquakes near Kings County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
34 earthquakes have been recorded within 50 km since this one.
- 1.9 12 km W of Auberry, CA
- 1.9 7 km NNE of Friant, CA
- 2.4 22 km SE of Shaver Lake, CA
- 2.2 6 km ESE of Orange Cove, CA
- 2.8 2km SSW of North Fork, CA
- 2.1 3km ESE of Orange Cove, CA
- 2.0 4km SE of Shaver Lake, CA
- 2.1 46km SW of Wilkerson, CA
- 2.2 3km NW of Sanger, CA
- 2.5 4km E of Orange Cove, CA
- 2.3 13km NW of Squaw Valley, CA
- 2.4 6km E of Orange Cove, CA
- 1.6 1km WSW of Auberry, CA
- 1.5 31km SSW of Round Valley, CA
- 2.0 30km ENE of Shaver Lake, 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
- 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.