Earthquake · reviewed by a seismologist
M 2.5md
Earthquake near Willow Creek, CA
No earthquake was likely felt in Willow Creek in the 24 hours to 11:33 pm PST (07:33 UTC). The last one was M 5.0, 175 km (109 mi) WSW, at 8:56 pm PST on 4 November 2026, estimated intensity II (weak) in town; 145 felt reports to USGS. Every earthquake near Willow Creek
This page: a magnitude 2.5 earthquake was recorded 32 km (20 mi) northeast of Willow Creek, CA, at 7:08 pm PDT on 13 June 2021 (02:08 UTC), 39 km deep. 1 person has reported feeling it to USGS.
USGS: 27km SSE of Somes Bar, CA
- When
- 7:08 pm PDT on 13 June 2021 ()
- Where
- 32 km (20 mi) northeast of Willow Creek, CA · earthquakes near Willow Creek
- Magnitude
- M 2.5 (md)
- Depth
- 39 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Trinity County, 60 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1903 days ago
Earthquake alerts for Willow Creek, CA
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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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Willow Creek, 32 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 170 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 89,000× the energy of this one
- Magna, Utah 2020 M 5.7 63,000× the energy of this one
- Around the size people start to feel M 3.0 5.6× the energy of this one
- This earthquake M 2.5 about 170 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 2 earthquakes of M5 or more within 50 km:
- 5.6 26 km NNW of Willow Creek, California · 36 km W of this epicentre
- 5.4 3 km NNW of Burnt Ranch, California · 37 km SSW 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 41.1497, -123.3650. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Trinity County, CA | 60 km (37 mi) | SSE | earthquakes near Trinity County |
| Humboldt County, CA | 68 km (42 mi) | SW | earthquakes near Humboldt County |
| Del Norte County, CA | 84 km (52 mi) | NW | earthquakes near Del Norte County |
| Siskiyou County, CA | 85 km (53 mi) | NE | earthquakes near Siskiyou County |
| Shasta County, CA | 119 km (74 mi) | ESE | earthquakes near Shasta County |
| Tehama County, CA | 149 km (92 mi) | SE | earthquakes near Tehama County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 2.2 22km SE of Willow Creek, CA
- 2.5 8km W of Willow Creek, CA
- 2.9 3km SSE of Somes Bar, CA
- 2.4 17km E of Willow Creek, CA
- 2.9 5km N of Willow Creek, CA
- 2.1 29km E of Willow Creek, CA
- 4.3 16km WSW of Weitchpec, CA
- 3.7 16km WSW of Weitchpec, CA
- 2.7 21km ESE of Weitchpec, CA
- 2.3 15km E of Willow Creek, CA
- 2.4 17km ENE of Willow Creek, CA
- 1.8 20km SSE of Willow Creek, CA
- 2.1 25km WNW of Weaverville, CA
- 2.0 7km W of Willow Creek, CA
- 2.4 14km E of Willow Creek, 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.