Earthquake · reviewed by a seismologist
M 2.1ml
6 km NNE of Delta, B.C., MX
Yes. A magnitude 2.1 earthquake was recorded 6 km NNE of Delta, B.C., MX, 61 km (38 mi) WSW of Yuma, AZ, at 12:35 pm MST on 3 November 2026 (19:35 UTC), 16 km deep. No felt reports to USGS yet.
61 km (38 mi) WSW of Yuma, AZ
- When
- Magnitude
- M 2.1 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- Imperial County, 73 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3 hours ago
Earthquake alerts for San Luis, AZ
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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 7 km (4 mi) from the epicentre. 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.
How big was it?
This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
- Magna, Utah 2020 M 5.7 260,000× the energy of this one
- Around the size people start to feel M 3.0 23× the energy of this one
- This earthquake M 2.1 about 41 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 in our catalogue was M 4.9 on 2026-11-03 — about 16,000 times the energy of this one.
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 32.4048, -115.1628. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Imperial County, CA | 73 km (45 mi) | NNW | earthquakes near Imperial County |
| Yuma County, AZ | 124 km (77 mi) | ENE | earthquakes near Yuma County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
7 earthquakes have been recorded within 50 km since this one.
- 2.2 8 km NNE of Delta, B.C., MX
- 1.9 6 km NNW of Delta, B.C., MX
- 2.0 9 km N of Delta, B.C., MX
- 2.2 10 km NNE of Delta, B.C., MX
- 2.0 8 km NNE of Delta, B.C., MX
- 1.3 6 km N of Delta, B.C., MX
- 2.5 7 km NNE of Delta, B.C., MX
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.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| review status | automatic | reviewed | |
| location | 5 km NE of Delta, B.C., MX | 6 km NNE of Delta, B.C., MX | |
| longitude | -115.15 | -115.16 | |
| latitude | 32.38 | 32.4 | |
| depth | 22.73 | 15.5 | |
| magnitude | 2.03 | 2.09 | |
| location | 8 km NNE of Delta, B.C., MX | 5 km NE of Delta, B.C., MX | |
| longitude | -115.15 | -115.15 | |
| latitude | 32.42 | 32.38 | |
| depth | 14.85 | 22.73 | |
| magnitude | 1.91 | 2.03 |
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.