Earthquake · reviewed by a seismologist
M 2.1md
Earthquake near Huron, CA
No earthquake was likely felt in Huron in the 24 hours to 5:01 am PST (13:01 UTC). The last one was M 2.2, 10 km (6 mi) SE, at 2:35 am PDT on 16 September 2026, estimated intensity II (weak) in town. Every earthquake near Huron
This page: a magnitude 2.1 earthquake was recorded 7 km (4 mi) east-southeast of Huron, CA, at 1:58 am PDT on 11 March 2020 (08:58 UTC), 23 km deep.
USGS: 7km ESE of Huron, CA
70 km (43 mi) SSW of Fresno, CA · 37 km (23 mi) WSW of Hanford, CA
- When
- 1:58 am PDT on 11 March 2020 ()
- Where
- 7 km (4 mi) east-southeast of Huron, CA · earthquakes near Huron
- Magnitude
- M 2.1 (md)
- Depth
- 23 km below the surface
- Felt
- no reports yet
- Nearest
- Kings County, 23 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 2437 days ago
Earthquake alerts for Huron, CA
Get a notification in this browser when USGS records an earthquake near Huron, 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 Huron, 7 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: Lemoore Station, Stratford, Kettleman City, Avenal, Lemoore.
How big was it?
This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
- Magna, Utah 2020 M 5.7 260,000× the energy of this one
- Around the size people start to feel M 3.0 23× the energy of this one
- This earthquake M 2.1 about 41 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
The largest earthquake within 50 km since 2016 was M 4.0 on 2018-11-27 — about 730 times the energy of this one.
Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1983 Coalinga, California Earthquake · 26 km WNW of this epicentre
- 6.4 1901 Parkfield, California Earthquake · 47 km WSW of this epicentre
- 5.6 8 km SW of Huron, California · 12 km WSW of this epicentre
- 5.5 1966 Parkfield, California Earthquake · 50 km SSW of this epicentre
- 5.5 11 km NNE of Coalinga, California · 24 km WNW 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 36.1823, -120.0283. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 23 km (14 mi) | ESE | earthquakes near Kings County |
| Fresno County, CA | 72 km (45 mi) | NNE | earthquakes near Fresno County |
| San Luis Obispo County, CA | 96 km (60 mi) | SSW | earthquakes near San Luis Obispo County |
| San Benito County, CA | 106 km (66 mi) | WNW | earthquakes near San Benito County |
| Tulare County, CA | 112 km (70 mi) | E | earthquakes near Tulare County |
| Monterey County, CA | 116 km (72 mi) | W | earthquakes near Monterey County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
47 earthquakes have been recorded within 50 km since this one.
- 2.0 7km WSW of Kettleman City, CA
- 1.8 8km SE of Huron, CA
- 1.6 8km NNW of Avenal, CA
- 1.8 17km NNW of Coalinga, CA
- 1.8 21km SSW of Cantua Creek, CA
- 1.8 5km NE of Coalinga, CA
- 2.3 5km SSE of Parkfield, CA
- 1.8 16km S of Kettleman City, CA
- 1.7 16km S of Kettleman City, CA
- 1.8 12km S of Stratford, CA
- 2.2 14km ENE of Kettleman City, CA
- 2.2 14km S of Stratford, CA
- 1.9 13km S of Stratford, CA
- 2.0 10km WSW of Huron, CA
- 1.6 6km SSE of Parkfield, 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.