USGS · August 11, 2026
Magnitude 3.0 earthquake — 10 km WSW of Corona, CA
A magnitude 3.0 earthquake was recorded near 10 km WSW of Corona, CA on Aug 11, 2026, 11:17 PM (local time at the epicentre — PDT, UTC-7), at a depth of about 2.8 km, according to USGS.
USGSFelt by 402 people · community intensity III (weak)Shaking IIIShallow (0–70 km)Reviewed by a seismologist
Updated 2026-09-04 18:17 UTC
The full record
- Magnitude
- M 3.0 · local (Richter) magnitude
- Location
- 10 km WSW of Corona, CA
- Local time at the epicentre
- Aug 11, 2026, 11:17 PM — PDT, UTC-7
- Time (UTC)
- 2026-08-12 06:17 UTC
- Depth
- 2.8 km · Shallow (0–70 km)
- Coordinates
- 33.833, -117.662
- Felt reports
- Felt by 402 people · community intensity III (weak)
- Estimated shaking
- III · Weak
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 279 / 1000 · routine event
- Solution quality
- 151 seismic stations used · 16° azimuthal gap (well-constrained epicentre)
- Review status
- Reviewed by a seismologist
- Catalog
- USGS
Epicentre and nearby recent earthquakes
The highlighted circle is this earthquake. Smaller circles are other events recorded nearby in the last 30 days.
What the shaking was like
Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
Estimated instrumental shaking III (Weak): Felt indoors; hanging objects swing, like a passing truck.
People who reported it described intensity III (Weak): Felt indoors; hanging objects swing, like a passing truck.
Felt it yourself? USGS collects first-hand reports through “Did You Feel It?”, and those reports are what produce the community intensity above.
Who lives nearby
About 3,746,702 people live in towns within 30 km of the epicentre, and 19,222,234 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Corona | 10.0 km ENE | 164,226 |
| El Cerrito Corona | 12.9 km E | 5,100 |
| Home Gardens | 13.9 km ENE | 11,570 |
| Villa Park | 14.1 km W | 5,964 |
| North Tustin | 14.4 km WSW | 24,917 |
| Norco | 15.1 km NE | 26,289 |
| Yorba Linda | 15.3 km WNW | 67,973 |
| Stonegate | 16.0 km SSW | 18,938 |
| Los Serranos | 16.1 km NNW | 7,099 |
| Northwood | 16.1 km SW | 22,218 |
Earthquake history in this area
No earthquake of magnitude 4.5+ has been recorded within 200 km of this epicentre since 1960, in California.
Other earthquakes near this epicentre
2 other events within 100 km in the last 30 days.
Be first to know about the next earthquake near 10 km WSW of Corona, CA
SeismoWatch pushes a notification to your Android phone within minutes of a matching earthquake — for the area and magnitude you choose.
Frequently asked questions
How strong was the 10 km WSW of Corona, CA earthquake?
Magnitude 3.0 (local (Richter) magnitude), at a depth of 2.8 km. Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
Exactly when did it happen?
Aug 11, 2026, 11:17 PM (local time at the epicentre — PDT, UTC-7). In universal time: 2026-08-12 06:17 UTC.
Was it felt?
Felt by 402 people · community intensity III (weak). Felt indoors; hanging objects swing, like a passing truck.
Was there a tsunami warning?
No tsunami evaluation was flagged for this earthquake.
Which towns are closest to the epicentre?
The closest is Corona, 10.0 km ENE (population 164,226).
Are earthquakes normal in this area?
2 further events were recorded within 100 km of the epicentre in the last 30 days.
How do I get alerts for the next earthquake here?
Install the free SeismoWatch Android app, draw a box over this area, set a minimum magnitude, and turn alerts on.
About this page
Event data: U.S. Geological Survey (USGS), the European-Mediterranean Seismological Centre (EMSC) and, in Venezuela, FUNVISIS. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.