Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Calexico, CA
No earthquake was likely felt in Calexico in the 24 hours to 12:32 pm PST (20:32 UTC). The last one was M 4.9, 41 km (25 mi) SE, at 10:27 am PST on 3 November 2026, estimated intensity III (weak) in town; 321 felt reports to USGS. Every earthquake near Calexico
This page: a magnitude 1.9 earthquake was recorded 7 km (4 mi) northeast of Calexico, CA, at 6:26 am PST on 4 March 2026 (14:26 UTC), 14 km deep.
USGS: 7 km NE of Calexico, CA
- When
- 6:26 am PST on 4 March 2026 ()
- Where
- 7 km (4 mi) northeast of Calexico, CA · earthquakes near Calexico
- Magnitude
- M 1.9 (ml)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Imperial County, 37 km NNE
- Nearest mapped fault
- Imperial fault, 6 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 253 days ago
Earthquake alerts for Calexico, CA
Get a notification in this browser when USGS records an earthquake near Calexico, 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 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 6 km (4 mi) from the epicentre. In Calexico, 7 km away, the estimate is intensity II (weak). 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.
Earthquakes near other towns within 30 km: Heber, Holtville, El Centro, Imperial, Seeley.
How big was it?
This earthquake released about 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
- Magna, Utah 2020 M 5.7 420,000× the energy of this one
- Around the size people start to feel M 3.0 38× the energy of this one
- This earthquake M 1.9 about 25 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 since 2016 was M 4.9 on 2020-10-01 — about 30,000 times the energy of this one.
Before 2016, the USGS record lists 45 earthquakes of M5 or more within 50 km; the five largest:
- 7.2 The 2010 Sierra El Mayor, B.C., Mexico Earthquake · 49 km SSE of this epicentre
- 6.9 The 1940 Imperial Valley, California Earthquake · 16 km NNE of this epicentre
- 6.6 The 1942 Fish Creek Mountains, California Earthquake · 43 km NW of this epicentre
- 6.4 The 1979 Imperial Valley Earthquake, California-Baja California · 9 km ESE of this epicentre
- 6.3 The 1906 Imperial Valley, California Earthquake · 22 km NNW 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 32.7123, -115.4400. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Imperial County, CA | 37 km (23 mi) | NNE | earthquakes near Imperial County |
| Riverside County, CA | 125 km (77 mi) | NNW | earthquakes near Riverside County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
49 earthquakes have been recorded within 50 km since this one.
- 1.5 22 km SW of Westmorland, CA
- 1.7 13 km SW of Puebla, B.C., MX
- 2.2 7 km NE of Puebla, B.C., MX
- 1.6 17 km WSW of Westmorland, CA
- 1.6 7 km NE of Puebla, B.C., MX
- 1.7 5 km WSW of Imperial, CA
- 1.6 22 km NNE of Ocotillo, CA
- 1.9 27 km SW of Progreso, B.C., MX
- 1.6 11 km SW of Puebla, B.C., MX
- 1.7 1 km NNE of El Centro, CA
- 2.4 18 km W of Delta, B.C., MX
- 1.9 6 km E of Progreso, B.C., MX
- 2.5 3 km WNW of Delta, B.C., MX
- 1.9 5 km ENE of Imperial, CA
- 1.8 5 km ENE of Puebla, 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.
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.