Every recorded earthquake within 30 km
Earthquakes near Knightsen, CA
No earthquake was likely felt in Knightsen in the 24 hours to 3:49 am PDT (10:49 UTC). The last one was M 3.0, 16 km (10 mi) SW, at 6:47 am PDT on 14 September 2026, estimated intensity II (weak) in town; 52 felt reports to USGS.
M 3.0
Latest: 6:47 am PDT on 14 September 2026 · 16 km (10 mi) SW of Knightsen, CA
The most recent earthquake of M2.5 or more near Knightsen was M 3.0, 16 km (10 mi) SW of Knightsen, CA, at 6:47 am PDT on 14 September 2026, 17 km deep. 52 people reported feeling it to USGS. The estimated shaking in Knightsen was intensity II (weak), felt by some people at rest indoors. 2 smaller earthquakes have been recorded near Knightsen since; the newest is first in the list below.
No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Knightsen in the last 24 hours.
- Last 24 hours
- 0
- Last 7 days
- 0
- Last 30 days
- 4 · an average 30 days here since 2016: 3.3
- Last 12 months
- 44 · largest M 3.1 on 12 September 2026
- Since 2016
- 433 earthquakes of M1.5 or more within 30 km
- Largest since 2016
- M 4.3 on 16 July 2019, 18 km (11 mi) SSW of Knightsen, CA
- Reported felt
- 143 of them have felt reports to USGS
- Nearest mapped fault
- Greenville fault, 19 km from its surface trace
USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses
If you felt one
- Was that an earthquake? — checks what was recorded near you in the last hour
- Report what you felt to USGS — reports go to USGS, not to us, and they are what produces the intensity maps
- Expect aftershocks, and be ready to Drop, Cover, and Hold On if you feel one; if you are in a damaged building, go outside and move away from it (Ready.gov, FEMA; what to do during and after an earthquake)
- Near the coast, go inland or to higher ground as soon as strong shaking stops (Ready.gov); official warnings are on Tsunami.gov
- Earthquakes in California — with the state's activity score
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.
The last 30 days
The latest 50
- 1.6 29 km (18 mi) WSW of Knightsen, CA
- 1.9 16 km (10 mi) W of Knightsen, CA
- 3.0 16 km (10 mi) SW of Knightsen, CA · felt by 52
- 2.5 16 km (10 mi) SW of Knightsen, CA · felt by 5
- 3.1 18 km (11 mi) SW of Knightsen, CA · felt by 257
- 1.6 24 km (15 mi) S of Knightsen, CA
- 1.9 24 km (15 mi) S of Knightsen, CA
- 1.7 14 km (9 mi) SW of Knightsen, CA
- 1.7 25 km (16 mi) WSW of Knightsen, CA
- 2.5 29 km (18 mi) W of Knightsen, CA · felt by 13
- 1.7 16 km (10 mi) SSW of Knightsen, CA
- 1.8 26 km (16 mi) WSW of Knightsen, CA
- 1.5 26 km (16 mi) WSW of Knightsen, CA
- 1.8 19 km (12 mi) W of Knightsen, CA
- 1.9 29 km (18 mi) WSW of Knightsen, CA
- 1.6 18 km (11 mi) SW of Knightsen, CA
- 1.7 26 km (16 mi) WSW of Knightsen, CA
- 1.8 27 km (17 mi) WSW of Knightsen, CA
- 1.7 26 km (16 mi) WSW of Knightsen, CA
- 1.5 23 km (14 mi) WNW of Knightsen, CA
- 1.8 19 km (12 mi) W of Knightsen, CA · felt by 1
- 1.8 13 km (8 mi) W of Knightsen, CA
- 2.0 16 km (10 mi) SSW of Knightsen, CA · felt by 2
- 1.9 20 km (12 mi) SW of Knightsen, CA
- 2.3 19 km (12 mi) SW of Knightsen, CA · felt by 3
- 1.7 26 km (16 mi) WSW of Knightsen, CA
- 1.6 27 km (17 mi) WSW of Knightsen, CA
- 2.5 27 km (17 mi) WNW of Knightsen, CA · felt by 42
- 1.7 24 km (15 mi) SSW of Knightsen, CA
- 2.0 15 km (9 mi) SW of Knightsen, CA
- 2.0 16 km (10 mi) SW of Knightsen, CA · felt by 3
- 2.3 24 km (15 mi) WNW of Knightsen, CA
- 1.8 30 km (18 mi) WSW of Knightsen, CA
- 1.9 22 km (14 mi) WNW of Knightsen, CA
- 1.6 16 km (10 mi) SW of Knightsen, CA
- 1.6 21 km (13 mi) WNW of Knightsen, CA · felt by 1
- 3.0 29 km (18 mi) NW of Knightsen, CA · felt by 15
- 1.6 28 km (18 mi) NW of Knightsen, CA · felt by 1
- 1.7 16 km (10 mi) W of Knightsen, CA
- 2.5 16 km (10 mi) W of Knightsen, CA · felt by 8
- 1.7 26 km (16 mi) WSW of Knightsen, CA
- 2.2 17 km (10 mi) WSW of Knightsen, CA · felt by 2
- 1.8 26 km (16 mi) WSW of Knightsen, CA
- 1.7 4 km (3 mi) SSW of Knightsen, CA
- 1.6 16 km (10 mi) SW of Knightsen, CA
- 1.6 26 km (16 mi) WSW of Knightsen, CA
- 1.7 18 km (11 mi) SW of Knightsen, CA
- 1.8 23 km (14 mi) W of Knightsen, CA
- 1.6 17 km (11 mi) SW of Knightsen, CA
- 1.6 15 km (10 mi) WSW of Knightsen, CA
From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Knightsen time. Distances are from the town centre. Quakes USGS named after Knightsen are listed even when they are further out.
Show these earthquakes on your own site: a free card with the latest quakes near Knightsen, for a local news site, school or neighborhood page.
On the map
The white circle is Knightsen; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Estimated shaking in Knightsen
The strongest shaking in Knightsen from a quake since 2016 is estimated at intensity III (weak), from the M 4.2 on 18 October 2023, 18 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.
| Magnitude | When | Distance | Shaking in Knightsen (est.) |
|---|---|---|---|
| M 4.2 | 18 km | III · Weak · felt by 7,899 | |
| M 4.3 | 18 km | III · Weak · felt by 10,938 | |
| M 3.5 | 10 km | III · Weak · felt by 589 | |
| M 3.2 | 5 km | III · Weak · felt by 982 | |
| M 3.6 | 16 km | III · Weak · felt by 1,692 |
An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. All 5 reach intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.
Before 2016
The USGS record since 1900 lists 4 earthquakes of M5 or more within 50 km of Knightsen:
- 5.8 The 1980 Livermore, California Earthquake · 17 km SSW of Knightsen
- 5.4 South of Elmira, California · 42 km NNW of Knightsen
- 5.4 9 km NE of Livermore, California · 25 km S of Knightsen
- 5.1 11 km E of Blackhawk, California · 20 km SSW of Knightsen
USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.
Nearest mapped faults
- Greenville fault, 19 km from its surface trace
- Corral Hollow-Carnegie fault, 30 km from its surface trace
- Concord fault, 33 km from its surface trace
USGS Quaternary Fault and Fold Database. Near is not the same as on.
Nearby towns
Brentwood 5 km · Oakley 5 km · Discovery Bay 9 km · Byron 12 km · Antioch 13 km · Pittsburg 20 km · Rio Vista 22 km · Clayton 24 km
Be ready
Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.
- Ready.gov: earthquakes (FEMA) — what to do before, during and after, including Drop, Cover, and Hold On
- Build a kit (FEMA) — water, food and supplies for several days; our summary
- USGS: preparedness — the hazard behind the advice, from the agency that records every quake on this page
- The Great ShakeOut — the yearly earthquake drill, with material for homes, schools and workplaces
- ShakeAlert covers Knightsen, CA: alerts reach phones through Wireless Emergency Alerts and the MyShake app, seconds before shaking arrives
- Tsunami.gov (NOAA) — the official tsunami warnings for the coast; a quake page here never stands in for one
- California Earthquake Authority — retrofit grants and the state's not-for-profit earthquake insurance
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.