Earthquake · automatic estimate, may change
M 0.6ml
Earthquake near Anza, CA
USGS: 14 km SE of Anza, CA
89 km (55 mi) NE of San Diego, CA · 36 km (22 mi) SSW of Palm Desert, CA
- When
- 3:29 am PDT on 3 October 2026 ()
- Where
- 14 km (9 mi) SE of Anza, CA · earthquakes near Anza
- Magnitude
- M 0.6 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 53 km SSW
- Nearest mapped fault
- San Jacinto fault, 3 km from its surface trace — near is not the same as on
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 2 hours ago
A magnitude 0.6 earthquake was recorded 14 km (9 mi) SE of Anza, CA, at 3:29 am PDT on 3 October 2026 (10:29 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Aguanga, Borrego Springs.
How big was it?
This earthquake released about 0.24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 63,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 45,000,000× the energy of this one
- Around the size people start to feel M 3.0 4,000× the energy of this one
- This earthquake M 0.6 about 0.24 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 5.2 on 2025-04-14 — about 8,200,000 times the energy of this one.
Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1918 San Jacinto, California Earthquake · 50 km NW of this epicentre
- 6.4 The 1954 San Jacinto Fault, California Earthquake · 49 km ESE of this epicentre
- 6.0 16km WSW of Oasis, CA · 31 km ESE of this epicentre
- 5.5 1km ENE of Borrego Springs, CA · 30 km SE of this epicentre
- 5.4 20km NNW of Borrego Springs, CA · 10 km ESE 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 33.4642, -116.5728. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 53 km (33 mi) | SSW | earthquakes near San Diego County |
| Riverside County, CA | 61 km (38 mi) | ENE | earthquakes near Riverside County |
| Orange County, CA | 114 km (71 mi) | WNW | earthquakes near Orange County |
| Imperial County, CA | 123 km (76 mi) | ESE | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has 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 |
|---|---|---|---|
| longitude | -116.57 | -116.57 | |
| latitude | 33.47 | 33.46 | |
| depth | 11.76 | 10.96 | |
| magnitude | 1.01 | 0.6 |
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.