Earthquake · reviewed by a seismologist
M 2.2md
Earthquake near Shingletown, CA
No earthquake was likely felt in Shingletown in the 24 hours to 2:36 am PST (10:36 UTC). The last one was M 5.6, 170 km (106 mi) SW, at 8:10 am PDT on 24 June 2026, estimated intensity III (weak) in town; 5,311 felt reports to USGS. Every earthquake near Shingletown
This page: a magnitude 2.2 earthquake was recorded 29 km (18 mi) east of Shingletown, CA, at 10:05 pm PDT on 1 July 2020 (05:05 UTC), 3.3 km deep.
USGS: 12km ESE of Viola, CA
82 km (51 mi) NNE of Chico, CA
- When
- 10:05 pm PDT on 1 July 2020 ()
- Where
- 29 km (18 mi) east of Shingletown, CA · earthquakes near Shingletown
- Magnitude
- M 2.2 (md)
- Depth
- 3.3 km below the surface
- Felt
- no reports yet
- Nearest
- Shasta County, 53 km NW
- Nearest mapped fault
- Hat Creek fault, 23 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 2324 days ago
Earthquake alerts for Shingletown, CA
Get a notification in this browser when USGS records an earthquake near Shingletown, 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, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Shingletown, 29 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.
How big was it?
This earthquake released about 62 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 5.8 240,000× the energy of this one
- Magna, Utah 2020 M 5.7 170,000× the energy of this one
- Around the size people start to feel M 3.0 15× the energy of this one
- This earthquake M 2.2 about 62 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:
- 5.5 15 km NE of Mineral, California · 7 km ESE 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 40.4698, -121.5458. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Shasta County, CA | 53 km (33 mi) | NW | earthquakes near Shasta County |
| Tehama County, CA | 70 km (43 mi) | WSW | earthquakes near Tehama County |
| Plumas County, CA | 81 km (50 mi) | SE | earthquakes near Plumas County |
| Lassen County, CA | 83 km (51 mi) | ENE | earthquakes near Lassen County |
| Butte County, CA | 90 km (56 mi) | S | earthquakes near Butte County |
| Glenn County, CA | 121 km (75 mi) | SW | earthquakes near Glenn County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
46 earthquakes have been recorded within 50 km since this one.
- 2.5 13km N of Viola, CA
- 1.5 11km SW of Chester, CA
- 1.8 13km NNE of Shingletown, CA
- 1.6 19km NW of Viola, CA
- 2.6 4km NNE of Almanor, CA
- 1.5 6km NNE of Almanor, CA
- 1.8 16km NNW of Shingletown, CA
- 2.0 8km NNW of Chester, CA
- 1.5 7km ENE of Mineral, CA
- 1.7 12km SE of Mineral, CA
- 2.8 19km WSW of Manton, CA
- 1.9 8km NW of Chester, CA
- 2.2 9km NW of Chester, CA
- 1.9 9km NW of Chester, CA
- 1.6 13km ESE of Millville, 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.