Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Anza, CA
No earthquake was likely felt in Anza in the 24 hours to 5:44 am PST (13:44 UTC). The last one was M 2.6, 17 km (10 mi) S, at 10:44 pm PST on 5 November 2026, estimated intensity II (weak) in town; 7 felt reports to USGS. Every earthquake near Anza
This page: a magnitude 1.9 earthquake was recorded 16 km (10 mi) east-southeast of Anza, CA, at 9:42 pm PDT on 8 September 2026 (04:42 UTC), 11 km deep.
USGS: 16 km ESE of Anza, CA
93 km (58 mi) NE of San Diego, CA · 33 km (20 mi) SSW of Palm Desert, CA
- When
- 9:42 pm PDT on 8 September 2026 ()
- Where
- 16 km (10 mi) east-southeast of Anza, CA · earthquakes near Anza
- Magnitude
- M 1.9 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 55 km SSW
- Nearest mapped fault
- San Jacinto fault, 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 64 days ago
Earthquake alerts for Anza, CA
Get a notification in this browser when USGS records an earthquake near Anza, 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 9 km (6 mi) from the epicentre. In Anza, 16 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: Borrego Springs, La Quinta.
How big was it?
This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
- Magna, Utah 2020 M 5.7 520,000× the energy of this one
- Around the size people start to feel M 3.0 46× the energy of this one
- This earthquake M 1.9 about 21 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 95,000 times the energy of this one.
Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:
- 6.4 The 1954 San Jacinto Fault, California Earthquake · 46 km ESE of this epicentre
- 6.0 16km WSW of Oasis, CA · 27 km ESE of this epicentre
- 5.5 8km NNE of Ocotillo Wells, CA · 50 km SE of this epicentre
- 5.5 1km ENE of Borrego Springs, CA · 29 km SSE of this epicentre
- 5.4 20km NNW of Borrego Springs, CA · 8 km SE 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 33.4765, -116.5295. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 55 km (34 mi) | SSW | earthquakes near San Diego County |
| Riverside County, CA | 56 km (35 mi) | ENE | earthquakes near Riverside County |
| Orange County, CA | 118 km (73 mi) | W | earthquakes near Orange County |
| Imperial County, CA | 119 km (74 mi) | ESE | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
44 earthquakes have been recorded within 50 km since this one.
- 1.0 12 km WSW of Salton City, CA
- -0.1 7 km SW of Anza, CA
- 0.6 12 km NNE of Ocotillo Wells, CA
- 0.8 11 km NNE of Ocotillo Wells, CA
- 1.3 7 km SW of Anza, CA
- 1.1 8 km SW of Anza, CA
- 0.4 7 km SW of Anza, CA
- 1.1 8 km SW of Anza, CA
- 0.5 5 km ESE of Valle Vista, CA
- 0.1 4 km WSW of Anza, CA
- 1.4 21 km ESE of Anza, CA
- 1.2 21 km ESE of Anza, CA
- 0.5 12 km NW of Anza, CA
- 0.4 9 km SW of Idyllwild, CA
- 0.5 15 km ESE of Anza, CA
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.