Every recorded earthquake within 30 km
Earthquakes near Hartley, CA
No earthquake was likely felt in Hartley in the 24 hours to 9:13 pm PST (05:13 UTC). The last one was M 3.8, 76 km (47 mi) SSW, at 8:30 am PDT on 13 August 2026, estimated intensity II (weak) in town; 7,876 felt reports to USGS.
M 3.0
Latest: 1:33 am PST on 25 January 2026 · 29 km (18 mi) S of Hartley, CA
The most recent earthquake of M2.5 or more near Hartley was M 3.0, 29 km (18 mi) S of Hartley, CA, at 1:33 am PST on 25 January 2026, 20 km deep. 15 people reported feeling it to USGS. The estimated shaking in Hartley was intensity II (weak), felt by some people at rest indoors. 4 smaller earthquakes have been recorded near Hartley since; the newest is first in the list below.
No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Hartley in the last 24 hours.
- Last 24 hours
- 0
- Last 7 days
- 0
- Last 30 days
- 1 · an average 30 days here since 2016: 1.2
- Last 12 months
- 10 · largest M 3.0 on 25 January 2026
- Since 2016
- 153 earthquakes of M1.5 or more within 30 km
- Largest since 2016
- M 3.1 on 28 July 2024, 29 km (18 mi) S of Hartley, CA
- Reported felt
- 49 of them have felt reports to USGS
- Nearest mapped fault
- Great Valley thrust fault system, 6 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.
Earthquake alerts for Hartley, CA
Get a notification in this browser when USGS records an earthquake near Hartley, 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.
The last 30 days
The latest 50
- 1.7 22 km (14 mi) SSE of Hartley, CA
- 1.7 28 km (18 mi) SW of Hartley, CA · felt by 17
- 1.5 23 km (14 mi) W of Hartley, CA
- 1.6 24 km (15 mi) W of Hartley, CA
- 3.0 29 km (18 mi) S of Hartley, CA · felt by 15
- 1.6 30 km (18 mi) S of Hartley, CA · felt by 1
- 1.7 27 km (17 mi) NW of Hartley, CA
- 1.6 25 km (15 mi) NW of Hartley, CA
- 2.9 27 km (16 mi) NW of Hartley, CA · felt by 6
- 1.6 21 km (13 mi) W of Hartley, CA
- 2.0 19 km (12 mi) S of Hartley, CA
- 2.1 29 km (18 mi) SW of Hartley, CA · felt by 21
- 1.9 24 km (15 mi) SE of Hartley, CA
- 2.2 27 km (17 mi) S of Hartley, CA · felt by 1
- 1.9 28 km (17 mi) S of Hartley, CA
- 1.6 25 km (15 mi) WNW of Hartley, CA
- 1.5 27 km (17 mi) WNW of Hartley, CA
- 1.6 24 km (15 mi) W of Hartley, CA · felt by 1
- 1.8 26 km (16 mi) W of Hartley, CA
- 1.6 23 km (14 mi) SW of Hartley, CA
- 2.1 23 km (14 mi) WSW of Hartley, CA
- 1.6 26 km (16 mi) S of Hartley, CA
- 1.8 29 km (18 mi) S of Hartley, CA
- 2.0 29 km (18 mi) S of Hartley, CA
- 1.6 28 km (18 mi) S of Hartley, CA
- 2.0 29 km (18 mi) S of Hartley, CA
- 1.7 28 km (18 mi) S of Hartley, CA
- 2.6 29 km (18 mi) S of Hartley, CA · felt by 5
- 1.6 29 km (18 mi) S of Hartley, CA · felt by 2
- 3.1 29 km (18 mi) S of Hartley, CA · felt by 192
- 1.6 17 km (11 mi) SSE of Hartley, CA
- 2.3 16 km (10 mi) SSE of Hartley, CA
- 1.6 20 km (12 mi) W of Hartley, CA
- 1.6 22 km (14 mi) W of Hartley, CA · felt by 3
- 1.6 25 km (16 mi) W of Hartley, CA
- 2.0 10 km (6 mi) SSW of Hartley, CA
- 1.6 26 km (16 mi) W of Hartley, CA
- 1.6 26 km (16 mi) W of Hartley, CA
- 1.8 25 km (16 mi) W of Hartley, CA
- 2.2 26 km (16 mi) SW of Hartley, CA
- 1.9 24 km (15 mi) WNW of Hartley, CA
- 1.6 24 km (15 mi) WNW of Hartley, CA
- 1.5 27 km (17 mi) SW of Hartley, CA · felt by 1
- 1.5 22 km (14 mi) W of Hartley, CA
- 2.8 7 km (5 mi) NW of Hartley, CA · felt by 79
- 1.5 27 km (17 mi) W of Hartley, CA
- 2.0 21 km (13 mi) NE of Hartley, CA
- 2.0 20 km (12 mi) NE of Hartley, CA
- 1.6 26 km (16 mi) SSW of Hartley, CA
- 1.7 25 km (15 mi) W of Hartley, 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 Hartley time. Distances are from the town centre. Quakes USGS named after Hartley are listed even when they are further out.
Show these earthquakes on your own site: a free card with the latest quakes near Hartley, for a local news site, school or neighborhood page.
On the map
The white circle is Hartley; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Estimated shaking in Hartley
The strongest shaking in Hartley from a quake since 2016 is estimated at intensity II (weak), from the M 2.8 on 31 December 2022, 7 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 Hartley (est.) |
|---|---|---|---|
| M 2.8 | 7 km | II · Weak · felt by 79 | |
| M 2.9 | 23 km | II · Weak · felt by 33 | |
| M 3.0 | 25 km | II · Weak · felt by 97 | |
| M 3.0 | 27 km | II · Weak · felt by 276 | |
| M 2.9 | 23 km | II · Weak · felt by 11 |
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 2 earthquakes of M5 or more within 50 km of Hartley:
- 6.0 The 2014 South Napa, California Earthquake · 39 km SW of Hartley
- 5.4 South of Elmira, California · 14 km SSE of Hartley
USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.
Nearest mapped faults
- Great Valley thrust fault system, 6 km from its surface trace
- Green Valley fault, 23 km from its surface trace
- Cordelia fault, 28 km from its surface trace
USGS Quaternary Fault and Fold Database. Near is not the same as on.
Nearby towns
Vacaville 8 km · Dixon 11 km · Fairfield 20 km · Suisun 21 km · Davis 23 km · Monument Hills 28 km · Napa 32 km · Woodland 33 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 Hartley, 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.