Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Camp Pendleton South, CA
No earthquake was likely felt in Camp Pendleton South in the 24 hours to 12:30 pm PST (20:30 UTC). The last one was M 3.5, 52 km (32 mi) W, at 1:22 pm PDT on 5 October 2026, estimated intensity II (weak) in town; 126 felt reports to USGS. Every earthquake near Camp Pendleton South
This page: a magnitude 1.7 earthquake was recorded 5 km (3 mi) west-northwest of Camp Pendleton South, CA, at 8:33 am PDT on 18 April 2022 (15:33 UTC), 14 km deep.
USGS: 4km WNW of Camp Pendleton South, CA
11 km (7 mi) W of Oceanside, CA · 126 km (78 mi) SE of Los Angeles, CA
- When
- 8:33 am PDT on 18 April 2022 ()
- Where
- 5 km (3 mi) west-northwest of Camp Pendleton South, CA · earthquakes near Camp Pendleton South
- Magnitude
- M 1.7 (ml)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Orange County, 58 km NW
- Nearest mapped fault
- Newport-Inglewood-Rose Canyon 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 1668 days ago
Earthquake alerts for Camp Pendleton South, CA
Get a notification in this browser when USGS records an earthquake near Camp Pendleton South, 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 it was probably too small to be felt, even directly above it. In Camp Pendleton South, 5 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: Oceanside, Carlsbad, Camp Pendleton North, Vista, Bonsall, Fallbrook.
How big was it?
This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 870,000× the energy of this one
- Around the size people start to feel M 3.0 78× the energy of this one
- This earthquake M 1.7 about 12 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 4.0 on 2022-01-30 — about 2,500 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 33.2400, -117.4262. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Orange County, CA | 58 km (36 mi) | NW | earthquakes near Orange County |
| San Diego County, CA | 65 km (40 mi) | ESE | earthquakes near San Diego County |
| Los Angeles County, CA | 131 km (82 mi) | NW | earthquakes near Los Angeles County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
23 earthquakes have been recorded within 50 km since this one.
- 1.8 10km ENE of Pala, CA
- 2.0 5km SW of Palomar Observatory, CA
- 1.5 9km W of Palomar Observatory, CA
- 1.6 5km WSW of Palomar Observatory, CA
- 1.6 3km N of Murrieta, CA
- 1.6 24km WSW of Carlsbad, CA
- 1.7 44km WSW of Carlsbad, CA
- 1.6 26km WSW of Carlsbad, CA
- 1.9 9km SSW of Wildomar, CA
- 1.8 29km SSW of Dana Point, CA
- 1.9 5km SW of Palomar Observatory, CA
- 1.6 10km E of Murrieta Hot Springs, CA
- 1.6 9km SSE of San Clemente, CA
- 1.6 2km SSE of Dana Point, CA
- 2.3 42km WSW of Encinitas, 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.