Earthquake · reviewed by a seismologist
M 3.2ml
Earthquake near Gerber, CA
No earthquake was likely felt in Gerber in the 24 hours to 11:01 pm PST (07:01 UTC). The last one was M 4.0, 92 km (57 mi) SW, at 5:01 am PDT on 28 October 2026, estimated intensity II (weak) in town; 14 felt reports to USGS. Every earthquake near Gerber
This page: a magnitude 3.2 earthquake was recorded 9 km (6 mi) east-northeast of Gerber, CA, at 10:43 pm PST on 10 December 2017 (06:43 UTC), 19 km deep. 194 people have reported feeling it to USGS.
USGS: 9km ENE of Gerber, CA
43 km (27 mi) NNW of Chico, CA
- When
- 10:43 pm PST on 10 December 2017 ()
- Where
- 9 km (6 mi) east-northeast of Gerber, CA · earthquakes near Gerber
- Magnitude
- M 3.2 (ml)
- Depth
- 19 km below the surface
- Felt
- 194 reports · strongest reported intensity IV
- Nearest
- Tehama County, 15 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3175 days ago
Earthquake alerts for Gerber, 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, people at rest would likely notice it out to about 42 km (26 mi) from the epicentre. In Gerber, 9 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.
Likely felt in: Red Bluff 17 km, intensity II · Rancho Tehama Reserve 31 km, intensity II · Hamilton City 40 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 190,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
- Magna, Utah 2020 M 5.7 6,000× the energy of this one
- This earthquake M 3.2 about 1,800 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.9× more
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 40.1033, -122.0580. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Tehama County, CA | 15 km (9 mi) | W | earthquakes near Tehama County |
| Butte County, CA | 62 km (39 mi) | SE | earthquakes near Butte County |
| Glenn County, CA | 63 km (39 mi) | SSW | earthquakes near Glenn County |
| Shasta County, CA | 73 km (45 mi) | N | earthquakes near Shasta County |
| Colusa County, CA | 104 km (65 mi) | S | earthquakes near Colusa County |
| Plumas County, CA | 106 km (66 mi) | E | earthquakes near Plumas County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
43 earthquakes have been recorded within 50 km since this one.
- 1.8 6km ESE of Red Bluff, CA
- 1.6 15km S of Mineral, CA
- 1.6 7km WSW of Manton, CA
- 1.8 12km W of Manton, CA
- 1.5 12km SE of Millville, CA
- 1.7 13km W of Manton, CA
- 2.0 8km ESE of Red Bluff, CA
- 2.2 10km NE of Orland, CA
- 1.7 15km WSW of Shingletown, CA
- 1.7 11km W of Manton, CA
- 1.6 7km SSE of Mineral, CA
- 1.5 7km SSE of Mineral, CA
- 1.8 12km WNW of Mineral, CA
- 2.9 8km S of Mineral, CA
- 1.6 20km S of Mineral, 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.