Earthquake · reviewed by a seismologist
M 1.1ml
Earthquake near Calipatria, CA
USGS: 11 km WNW of Calipatria, CA
- When
- 7:16 am PDT on 2 October 2026 ()
- Where
- 11 km (7 mi) WNW of Calipatria, CA · earthquakes near Calipatria
- Magnitude
- M 1.1 (ml)
- Depth
- 3.1 km below the surface
- Felt
- no reports yet
- Nearest
- Imperial County, 28 km ESE
- Nearest mapped fault
- Brawley Seismic Zone, under 1 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 12 hours ago
A magnitude 1.1 earthquake was recorded 11 km (7 mi) WNW of Calipatria, CA, at 7:16 am PDT on 2 October 2026 (14:16 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Westmorland, Niland, Brawley.
How big was it?
This earthquake released about 1.5 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 10,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,200,000× the energy of this one
- Around the size people start to feel M 3.0 640× the energy of this one
- This earthquake M 1.1 about 1.5 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 5.3 on 2021-06-05 — about 1,500,000 times the energy of this one.
Before 2016, the USGS record lists 37 earthquakes of M5 or more within 50 km; the five largest:
- 6.9 The 1940 Imperial Valley, California Earthquake · 42 km SSE of this epicentre
- 6.6 The 1942 Fish Creek Mountains, California Earthquake · 25 km SW of this epicentre
- 6.6 The 1968 Borrego Mountain, California Earthquake · 44 km W of this epicentre
- 6.6 The 1987 Superstition Hills, California Earthquake · 26 km SW of this epicentre
- 6.4 The 1954 San Jacinto Fault, California Earthquake · 45 km WNW 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 33.1578, -115.6257. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Imperial County, CA | 28 km (18 mi) | ESE | earthquakes near Imperial County |
| Riverside County, CA | 73 km (45 mi) | NNW | earthquakes near Riverside County |
| San Diego County, CA | 108 km (67 mi) | W | earthquakes near San Diego County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
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 | 12 km WNW of Calipatria, CA | 11 km WNW of Calipatria, CA | |
| longitude | -115.63 | -115.63 | |
| latitude | 33.16 | 33.16 | |
| depth | 2.83 | 3.11 | |
| magnitude | 1.17 | 1.13 | |
| longitude | -115.64 | -115.63 | |
| latitude | 33.17 | 33.16 | |
| depth | 1.58 | 2.83 | |
| magnitude | 1.34 | 1.17 |
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.