Earthquake · reviewed by a seismologist
M 1.9md
Earthquake near McCloud, CA
No earthquake was likely felt in McCloud in the 24 hours to 2:40 am PST (10:40 UTC). The last one was M 2.1, 13 km (8 mi) N, at 12:35 am PDT on 13 August 2026, estimated intensity II (weak) in town. Every earthquake near McCloud
This page: a magnitude 1.9 earthquake was recorded 17 km (10 mi) south-southeast of McCloud, CA, at 12:27 am PDT on 3 November 2021 (07:27 UTC), 8.2 km deep.
USGS: 16km SSE of McCloud, CA
- When
- 12:27 am PDT on 3 November 2021 ()
- Where
- 17 km (10 mi) south-southeast of McCloud, CA · earthquakes near McCloud
- Magnitude
- M 1.9 (md)
- Depth
- 8.2 km below the surface
- Felt
- no reports yet
- Nearest
- Shasta County, 40 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1835 days ago
Earthquake alerts for McCloud, CA
Get a notification in this browser when USGS records an earthquake near McCloud, 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 12 km (7 mi) from the epicentre. In McCloud, 17 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: Dunsmuir.
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 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 41.1222, -122.0523. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Shasta County, CA | 40 km (25 mi) | S | earthquakes near Shasta County |
| Siskiyou County, CA | 66 km (41 mi) | NW | earthquakes near Siskiyou County |
| Trinity County, CA | 104 km (64 mi) | WSW | earthquakes near Trinity County |
| Tehama County, CA | 112 km (69 mi) | S | earthquakes near Tehama County |
| Modoc County, CA | 123 km (76 mi) | ENE | earthquakes near Modoc County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
42 earthquakes have been recorded within 50 km since this one.
- 1.6 8km NNW of Bella Vista, CA
- 1.9 16km ESE of McCloud, CA
- 1.6 9km NE of Shasta Lake, CA
- 1.9 10km NW of Burney, CA
- 1.5 10km NW of Burney, CA
- 1.8 22km N of Big Bend, CA
- 1.8 8km NNW of Bella Vista, CA
- 1.5 7km NNW of Bella Vista, CA
- 1.7 7km NNW of Bella Vista, CA
- 1.5 8km N of Bella Vista, CA
- 1.7 12km SSW of Tennant, CA
- 1.8 4km N of McCloud, CA
- 1.6 8km NE of Shasta Lake, CA
- 1.6 9km NE of Shasta Lake, CA
- 1.7 24km N of Shasta 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.