Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near Kenwood, CA
No earthquake was likely felt in Kenwood in the 24 hours to 2:44 am PST (10:44 UTC). The last one was M 1.7, in Kenwood, at 12:33 am PDT on 25 October 2026, estimated intensity II (weak) in town. Every earthquake near Kenwood
This page: a magnitude 1.6 earthquake was recorded 7 km (4 mi) east-northeast of Kenwood, CA, at 4:15 am PST on 27 November 2021 (12:15 UTC), 7.1 km deep.
USGS: 7km ENE of Kenwood, CA
73 km (45 mi) N of San Francisco, CA · 21 km (13 mi) E of Santa Rosa, CA
- When
- 4:15 am PST on 27 November 2021 ()
- Where
- 7 km (4 mi) east-northeast of Kenwood, CA · earthquakes near Kenwood
- Magnitude
- M 1.6 (md)
- Depth
- 7.1 km below the surface
- Felt
- no reports yet
- Nearest
- Napa County, 15 km ENE
- Nearest mapped fault
- West Napa fault, 3 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 1801 days ago
Earthquake alerts for Kenwood, CA
Get a notification in this browser when USGS records an earthquake near Kenwood, 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 8 km (5 mi) from the epicentre. In Kenwood, 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.
Likely felt in: Kenwood 7 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.3 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 4.2 on 2018-01-18 — about 8,800 times the energy of this one.
Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:
- 6.0 The 2014 South Napa, California Earthquake · 28 km SSE of this epicentre
- 5.3 3 km E of Bloomfield, California · 32 km WSW of this epicentre
- 5.3 Northern California · 34 km WSW 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 38.4362, -122.4683. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Napa County, CA | 15 km (9 mi) | ENE | earthquakes near Napa County |
| Sonoma County, CA | 41 km (26 mi) | WNW | earthquakes near Sonoma County |
| Marin County, CA | 49 km (31 mi) | SSW | earthquakes near Marin County |
| Solano County, CA | 50 km (31 mi) | ESE | earthquakes near Solano County |
| Yolo County, CA | 56 km (35 mi) | ENE | earthquakes near Yolo County |
| Contra Costa County, CA | 73 km (45 mi) | SE | earthquakes near Contra Costa County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
34 earthquakes have been recorded within 50 km since this one.
- 1.7 3km NNE of The Geysers, CA
- 2.2 3km SW of Anderson Springs, CA
- 1.6 4km WNW of The Geysers, CA
- 1.7 1km N of The Geysers, CA
- 1.6 1km NW of The Geysers, CA
- 1.5 1km NNW of The Geysers, CA
- 1.6 1km NW of The Geysers, CA
- 2.0 0km NE of The Geysers, CA
- 1.6 6km E of Vallejo, CA
- 1.7 3km W of Anderson Springs, CA
- 1.6 3km E of The Geysers, CA
- 1.9 6km E of Vallejo, CA
- 1.7 1km NE of The Geysers, CA
- 1.9 7km WSW of The Geysers, CA
- 1.6 3km NW of The Geysers, 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.