Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Yucca Valley, CA
No earthquake was likely felt in Yucca Valley in the 24 hours to 9:01 am PST (17:01 UTC). The last one was M 3.2, 18 km (11 mi) SE, at 9:51 am PDT on 1 August 2026, estimated intensity III (weak) in town; 46 felt reports to USGS. Every earthquake near Yucca Valley
This page: a magnitude 2.4 earthquake was recorded 24 km (15 mi) north of Yucca Valley, CA, at 1:20 pm PDT on 19 October 2017 (20:20 UTC), 3.0 km deep. 2 people have reported feeling it to USGS.
USGS: 24km N of Yucca Valley, CA
96 km (60 mi) ENE of Riverside, CA · 55 km (34 mi) N of Cathedral City, CA
- When
- 1:20 pm PDT on 19 October 2017 ()
- Where
- 24 km (15 mi) north of Yucca Valley, CA · earthquakes near Yucca Valley
- Magnitude
- M 2.4 (ml)
- Depth
- 3.0 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- San Bernardino County, 64 km NNE
- Nearest mapped fault
- Homestead Valley fault, 3 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 1558 days ago
Earthquake alerts for Yucca Valley, CA
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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 21 km (13 mi) from the epicentre. In Yucca Valley, 24 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: Joshua Tree.
How big was it?
This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
- Magna, Utah 2020 M 5.7 83,000× the energy of this one
- Around the size people start to feel M 3.0 7.4× the energy of this one
- This earthquake M 2.4 about 130 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 4.3 on 2016-02-20 — about 680 times the energy of this one.
Before 2016, the USGS record lists 38 earthquakes of M5 or more within 50 km; the five largest:
- 7.3 The 1992 Landers, California Earthquake · 14 km S of this epicentre
- 7.1 The 1999 Hector Mine, California Earthquake · 36 km NNE of this epicentre
- 6.3 The 1992 Big Bear, California Earthquake · 36 km WSW of this epicentre
- 6.1 The 1992 Joshua Tree, California Earthquake · 43 km SSE of this epicentre
- 6.0 The 1948 Desert Hot Springs, California Earthquake · 40 km SSE 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 34.3275, -116.4613. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Bernardino County, CA | 64 km (40 mi) | NNE | earthquakes near San Bernardino County |
| Riverside County, CA | 79 km (49 mi) | SSE | earthquakes near Riverside County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
41 earthquakes have been recorded within 50 km since this one.
- 2.1 8km NNW of Cabazon, CA
- 1.5 9km N of Big Bear City, CA
- 2.2 8km NE of Cabazon, CA
- 1.8 22km N of Yucca Valley, CA
- 1.9 7km WSW of Ludlow, CA
- 2.9 5km W of Morongo Valley, CA
- 1.8 3km WSW of Big Bear City, CA
- 2.0 19km NE of Big Bear City, CA
- 3.0 7km WSW of Ludlow, CA
- 1.6 11km SE of Lucerne Valley, CA
- 1.8 14km W of Morongo Valley, CA
- 2.1 11km N of Big Bear Lake, CA
- 1.5 3km WSW of Big Bear City, CA
- 1.6 39km WSW of Ludlow, CA
- 1.5 12km NNE 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.