Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Lucerne Valley, CA
No earthquake was likely felt in Lucerne Valley in the 24 hours to 7:06 am PST (15:06 UTC). The last one was M 2.6, 19 km (12 mi) SSE, at 1:40 am PDT on 6 October 2026, estimated intensity II (weak) in town; 18 felt reports to USGS. Every earthquake near Lucerne Valley
This page: a magnitude 1.9 earthquake was recorded 15 km (9 mi) east-southeast of Lucerne Valley, CA, at 11:46 pm PST on 17 February 2019 (07:46 UTC), 7.5 km deep. 1 person has reported feeling it to USGS.
USGS: 15km ESE of Lucerne Valley, CA
75 km (46 mi) NE of Riverside, CA · 39 km (25 mi) ESE of Apple Valley, CA
- When
- 11:46 pm PST on 17 February 2019 ()
- Where
- 15 km (9 mi) east-southeast of Lucerne Valley, CA · earthquakes near Lucerne Valley
- Magnitude
- M 1.9 (ml)
- Depth
- 7.5 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- San Bernardino County, 76 km NE
- Nearest mapped fault
- North Frontal thrust system, 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 2822 days ago
Earthquake alerts for Lucerne Valley, CA
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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 13 km (8 mi) from the epicentre. In Lucerne Valley, 15 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: Big Bear City, Big Bear Lake.
How big was it?
This earthquake released about 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
- Magna, Utah 2020 M 5.7 420,000× the energy of this one
- Around the size people start to feel M 3.0 38× the energy of this one
- This earthquake M 1.9 about 25 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 4.5 on 2018-05-08 — about 6,500 times the energy of this one.
Before 2016, the USGS record lists 26 earthquakes of M5 or more within 50 km; the five largest:
- 7.3 The 1992 Landers, California Earthquake · 41 km ESE of this epicentre
- 6.3 The 1992 Big Bear, California Earthquake · 23 km S of this epicentre
- 6.0 The 1986 North Palm Springs, California Earthquake · 49 km SSE of this epicentre
- 5.8 3km NE of Yucca Valley, California · 48 km SE of this epicentre
- 5.6 7km ENE of Running Springs, CA · 28 km SW 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 34.4055, -116.8087. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Bernardino County, CA | 76 km (47 mi) | NE | earthquakes near San Bernardino County |
| Riverside County, CA | 106 km (66 mi) | SE | earthquakes near Riverside County |
| Orange County, CA | 121 km (75 mi) | SW | earthquakes near Orange County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
33 earthquakes have been recorded within 50 km since this one.
- 1.6 15km NNE of Apple Valley, CA
- 1.6 1km SSE of Yucaipa, CA
- 1.7 10km NNE of Big Bear City, CA
- 1.7 10km NNE of Big Bear City, CA
- 1.9 11km NNE of Big Bear City, CA
- 1.8 36km NE of Lucerne Valley, CA
- 2.3 10km NNE of Big Bear City, CA
- 1.8 10km NNE of Big Bear City, CA
- 2.2 12km WSW of Morongo Valley, CA
- 1.6 5km NW of Big Bear City, CA
- 1.6 5km NW of Big Bear City, CA
- 1.8 9km N of Banning, CA
- 2.1 12km N of Big Bear City, CA
- 1.5 8km NNE of Beaumont, CA
- 2.5 8km NNE of Beaumont, 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.