Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Joshua Tree, CA
No earthquake was likely felt in Joshua Tree in the 24 hours to 5:57 am PST (13:57 UTC). The last one was M 3.2, 17 km (11 mi) S, at 9:51 am PDT on 1 August 2026, estimated intensity III (weak) in town; 46 felt reports to USGS. Every earthquake near Joshua Tree
This page: a magnitude 1.6 earthquake was recorded 18 km (11 mi) south of Joshua Tree, CA, at 4:07 pm PDT on 1 October 2017 (23:07 UTC), 5.3 km deep.
USGS: 18km S of Joshua Tree, CA
23 km (15 mi) NE of Cathedral City, CA · 103 km (64 mi) E of Riverside, CA
- When
- 4:07 pm PDT on 1 October 2017 ()
- Where
- 18 km (11 mi) south of Joshua Tree, CA · earthquakes near Joshua Tree
- Magnitude
- M 1.6 (ml)
- Depth
- 5.3 km below the surface
- Felt
- no reports yet
- Nearest
- Riverside County, 37 km SE
- Nearest mapped fault
- Eureka Peak 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 3304 days ago
Earthquake alerts for Joshua Tree, CA
Get a notification in this browser when USGS records an earthquake near Joshua Tree, 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 10 km (6 mi) from the epicentre. In Joshua Tree, 18 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: Sky Valley, Desert Edge, Garnet, Thousand Palms, Yucca Valley, Desert Hot Springs.
How big was it?
This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.6 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 25 earthquakes of M5 or more within 50 km; the five largest:
- 7.3 The 1992 Landers, California Earthquake · 29 km NNW of this epicentre
- 6.1 The 1992 Joshua Tree, California Earthquake · 4 km WSW of this epicentre
- 6.0 The 1948 Desert Hot Springs, California Earthquake · 5 km W of this epicentre
- 6.0 The 1986 North Palm Springs, California Earthquake · 31 km W of this epicentre
- 5.8 3km NE of Yucca Valley, California · 21 km NW 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 33.9763, -116.2755. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Riverside County, CA | 37 km (23 mi) | SE | earthquakes near Riverside County |
| San Bernardino County, CA | 98 km (61 mi) | N | earthquakes near San Bernardino County |
| San Diego County, CA | 116 km (72 mi) | SSW | earthquakes near San Diego County |
| Imperial County, CA | 135 km (84 mi) | SE | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
34 earthquakes have been recorded within 50 km since this one.
- 1.6 10km ENE of Indio, CA
- 1.8 14km W of Morongo Valley, CA
- 2.0 5km SE of Cabazon, CA
- 1.5 12km NNE of Cabazon, CA
- 1.6 22km N of Yucca Valley, CA
- 2.6 6km WNW of Desert Hot Springs, CA
- 1.7 15km S of Joshua Tree, CA
- 1.6 24km N of Yucca Valley, CA
- 2.1 14km NNE of Cabazon, CA
- 1.7 12km NE of Coachella, CA
- 1.6 9km NE of Indio, CA
- 2.0 17km NE of Indio, CA
- 1.9 9km NE of Indio, CA
- 1.9 25km NNW of Yucca Valley, CA
- 1.9 5km N of Cabazon, 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.