Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Adelanto, CA
No earthquake was likely felt in Adelanto in the 24 hours to 6:39 am PST (14:39 UTC). The last one was M 4.3, 89 km (55 mi) NNW, at 9:40 am PDT on 13 July 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near Adelanto
This page: a magnitude 1.8 earthquake was recorded 4 km (3 mi) southwest of Adelanto, CA, at 3:40 pm PDT on 17 March 2019 (22:40 UTC), 9.1 km deep.
USGS: 4km SW of Adelanto, CA
9 km (5 mi) WNW of Victorville, CA · 107 km (67 mi) NE of Los Angeles, CA
- When
- 3:40 pm PDT on 17 March 2019 ()
- Where
- 4 km (3 mi) southwest of Adelanto, CA · earthquakes near Adelanto
- Magnitude
- M 1.8 (ml)
- Depth
- 9.1 km below the surface
- Felt
- no reports yet
- Nearest
- Los Angeles County, 85 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2795 days ago
Earthquake alerts for Adelanto, CA
Get a notification in this browser when USGS records an earthquake near Adelanto, 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 Adelanto, 4 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: Victorville, Spring Valley Lake, Phelan, Hesperia, Oak Hills, Silver Lakes.
How big was it?
This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 810,000× the energy of this one
- Around the size people start to feel M 3.0 72× the energy of this one
- This earthquake M 1.8 about 13 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 one earthquake of M5 or more within 50 km:
- 5.2 3km W of Lytle Creek, CA · 34 km SSW 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 34.5552, -117.4405. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Los Angeles County, CA | 85 km (53 mi) | WSW | earthquakes near Los Angeles County |
| Orange County, CA | 103 km (64 mi) | SSW | earthquakes near Orange County |
| San Bernardino County, CA | 120 km (74 mi) | ENE | earthquakes near San Bernardino County |
| Kern County, CA | 147 km (91 mi) | NW | earthquakes near Kern 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.
- 1.6 3km W of San Bernardino, CA
- 1.6 3 km W of San Bernardino, CA
- 1.5 3km WSW of San Bernardino, CA
- 1.9 11km NW of Big Bear Lake, CA
- 1.6 1km ENE of Wrightwood, CA
- 2.9 10km NNE of Phelan, CA
- 1.6 11km NNE of Running Springs, CA
- 2.1 5km SSE of Lytle Creek, CA
- 1.7 5km SSW of Devore, CA
- 2.0 4km SSW of Lytle Creek, CA
- 2.0 3km SSE of Devore, CA
- 1.9 8km SSW of Lytle Creek, CA
- 1.5 10km NNW of Rancho Cucamonga, CA
- 1.7 17km ESE of Boron, CA
- 2.2 17km ESE of Boron, 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.