Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near Winters, CA
No earthquake was likely felt in Winters in the 24 hours to 1:34 am PST (09:34 UTC). The last one was M 4.2, 88 km (55 mi) WNW, at 7:40 pm PDT on 28 July 2026, estimated intensity II (weak) in town; 240 felt reports to USGS. Every earthquake near Winters
This page: a magnitude 1.6 earthquake was recorded 18 km (11 mi) west-northwest of Winters, CA, at 11:13 pm PST on 14 January 2026 (07:13 UTC), 9.8 km deep.
USGS: 18 km WNW of Winters, CA
89 km (55 mi) NNE of San Francisco, CA · 28 km (18 mi) NW of Vacaville, CA
- When
- 11:13 pm PST on 14 January 2026 ()
- Where
- 18 km (11 mi) west-northwest of Winters, CA · earthquakes near Winters
- Magnitude
- M 1.6 (md)
- Depth
- 9.8 km below the surface
- Felt
- no reports yet
- Nearest
- Napa County, 15 km WSW
- Nearest mapped fault
- Hunting Creek-Berryessa fault system, 6 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 291 days ago
Earthquake alerts for Winters, CA
Get a notification in this browser when USGS records an earthquake near Winters, 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 4 km (2 mi) from the epicentre. In Winters, 18 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: Esparto, Cottonwood, Allendale, Yountville, Angwin, Hartley.
How big was it?
This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.6 about 6.4 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 4.4 on 2022-09-14 — about 18,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 6.0 The 2014 South Napa, California Earthquake · 40 km SSW of this epicentre
- 5.4 South of Elmira, California · 37 km SE 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 38.5572, -122.1707. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Napa County, CA | 15 km (9 mi) | WSW | earthquakes near Napa County |
| Yolo County, CA | 27 km (17 mi) | ENE | earthquakes near Yolo County |
| Solano County, CA | 38 km (24 mi) | SSE | earthquakes near Solano County |
| Sonoma County, CA | 66 km (41 mi) | W | earthquakes near Sonoma County |
| Sutter County, CA | 67 km (42 mi) | NE | earthquakes near Sutter County |
| Colusa County, CA | 69 km (43 mi) | N | earthquakes near Colusa County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
36 earthquakes have been recorded within 50 km since this one.
- 1.8 5 km ENE of Vallejo, CA
- 1.6 9 km E of Larkfield-Wikiup, CA
- 1.6 8 km WSW of Calistoga, CA
- 2.2 4 km SE of Larkfield-Wikiup, CA
- 1.6 9 km WNW of Calistoga, CA
- 1.9 14 km NNE of Angwin, CA
- 2.0 13 km NNE of Angwin, CA
- 1.9 8 km WSW of Arbuckle, CA
- 2.9 2 km NNE of Middletown, CA
- 1.7 3 km S of Green Valley, CA
- 2.3 4 km SW of Green Valley, CA
- 2.0 10 km ESE of Hidden Valley Lake, CA
- 2.1 5 km WSW of Yountville, CA
- 2.1 6 km SE of Napa, CA
- 1.5 14 km ENE of Yountville, 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.