Earthquake · reviewed by a seismologist
M 4.3ml
Earthquake near Santa Rosa, CA
No earthquake was likely felt in Santa Rosa in the 24 hours to 2:29 am PST (10:29 UTC). The last one was M 1.9, 5 km (3 mi) NE, at 2:01 pm PDT on 23 October 2026, estimated intensity II (weak) in town. Every earthquake near Santa Rosa
This page: a magnitude 4.3 earthquake was recorded 5 km (3 mi) north-northeast of Santa Rosa, CA, at 6:40 pm PDT on 13 September 2022 (01:40 UTC), 5.6 km deep. 277 people have reported feeling it to USGS.
USGS: 4km N of Santa Rosa, CA
in Santa Rosa, CA
- When
- 6:40 pm PDT on 13 September 2022 ()
- Where
- 5 km (3 mi) north-northeast of Santa Rosa, CA · earthquakes near Santa Rosa
- Magnitude
- M 4.3 (ml)
- Depth
- 5.6 km below the surface
- Felt
- 277 reports · strongest reported intensity V
- Measured shaking
- intensity V (ShakeMap)
- USGS impact alert
- green
- Nearest
- Sonoma County, 20 km WNW
- Nearest mapped fault
- Rodgers Creek fault, under 1 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 934 days ago
Earthquake alerts for Santa Rosa, CA
Get a notification in this browser when USGS records an earthquake near Santa Rosa, 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 light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.
At this magnitude and depth, people at rest would likely notice it out to about 120 km (75 mi) from the epicentre. In Santa Rosa, 5 km away, the estimate is intensity IV (light). 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: Santa Rosa 5 km, intensity IV · Windsor 12 km, intensity IV · Calistoga 15 km, intensity IV · Kenwood 16 km, intensity IV · Rohnert Park 16 km, intensity IV · Healdsburg 20 km, intensity III · Angwin 24 km, intensity III · Agua Caliente 26 km, intensity III. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 41 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 4,100× the energy of this one
- Mineral, Virginia 2011 M 5.8 180× the energy of this one
- Magna, Utah 2020 M 5.7 130× the energy of this one
- This earthquake M 4.3 about 41 tons of TNT
- Around the size people start to feel M 3.0 this one released 86× 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
The largest earthquake within 50 km since 2016 was M 5.0 on 2016-12-14 — about 12 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 · 45 km SE of this epicentre
- 5.3 3 km E of Bloomfield, California · 21 km SSW of this epicentre
- 5.3 Northern California · 21 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 38.4813, -122.7037. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sonoma County, CA | 20 km (12 mi) | WNW | earthquakes near Sonoma County |
| Napa County, CA | 33 km (21 mi) | E | earthquakes near Napa County |
| Marin County, CA | 48 km (30 mi) | S | earthquakes near Marin County |
| Lake County, CA | 70 km (43 mi) | N | earthquakes near Lake County |
| Solano County, CA | 71 km (44 mi) | ESE | earthquakes near Solano County |
| Yolo County, CA | 73 km (45 mi) | ENE | earthquakes near Yolo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.6 10km NNE of Healdsburg, CA
- 1.7 6km NW of The Geysers, CA
- 2.1 2km SW of Anderson Springs, CA
- 1.7 2km WSW of Anderson Springs, CA
- 3.1 2km WSW of Anderson Springs, CA
- 1.8 4km SSE of The Geysers, CA
- 1.5 8km NW of The Geysers, CA
- 1.5 3km SE of The Geysers, CA
- 1.7 5km WNW of Cobb, CA
- 1.7 5km WNW of Cobb, CA
- 1.5 10km WNW of The Geysers, CA
- 1.6 2km NW of The Geysers, CA
- 1.6 2km NW of The Geysers, CA
- 1.7 13km NW of The Geysers, CA
- 1.7 3km W of Cobb, 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.