Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Pine Valley, CA
No earthquake was likely felt in Pine Valley in the 24 hours to 4:39 am PST (12:39 UTC). The last one was M 2.4, 6 km (4 mi) NW, at 2:04 am PST on 4 November 2026, estimated intensity II (weak) in town; 17 felt reports to USGS. Every earthquake near Pine Valley
This page: a magnitude 2.4 earthquake was recorded 11 km (7 mi) west of Pine Valley, CA, at 2:50 pm PDT on 8 April 2019 (21:50 UTC), 13 km deep. 9 people have reported feeling it to USGS.
USGS: 11km W of Pine Valley, CA
46 km (29 mi) E of San Diego, CA · 30 km (19 mi) E of El Cajon, CA
- When
- 2:50 pm PDT on 8 April 2019 ()
- Where
- 11 km (7 mi) west of Pine Valley, CA · earthquakes near Pine Valley
- Magnitude
- M 2.4 (ml)
- Depth
- 13 km below the surface
- Felt
- 9 reports · strongest reported intensity III
- Nearest
- San Diego County, 24 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2772 days ago
Earthquake alerts for Pine 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 16 km (10 mi) from the epicentre. In Pine Valley, 11 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.
Likely felt in: Pine Valley 11 km, intensity II · Alpine 12 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 110 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 5.8 130,000× the energy of this one
- Magna, Utah 2020 M 5.7 95,000× the energy of this one
- Around the size people start to feel M 3.0 8.5× the energy of this one
- This earthquake M 2.4 about 110 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 3 earthquakes of M5 or more within 50 km:
- 5.2 21km NW of Ocotillo, CA · 46 km E of this epicentre
- 5.0 16 km NW of Julian, California · 41 km N of this epicentre
- 5.0 26km NE of Pine Valley, CA · 34 km ENE 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 32.8347, -116.6413. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 24 km (15 mi) | NNW | earthquakes near San Diego County |
| Riverside County, CA | 116 km (72 mi) | NNE | earthquakes near Riverside County |
| Orange County, CA | 141 km (88 mi) | NW | earthquakes near Orange County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 1.6 18km ESE of Julian, CA
- 1.9 6km N of Lakeside, CA
- 1.7 9km SSE of Borrego Springs, CA
- 1.9 24km SSW of Ocotillo Wells, CA
- 2.2 25km NW of Ocotillo, CA
- 1.6 25km NW of Ocotillo, CA
- 2.2 25km NW of Ocotillo, CA
- 2.0 17km W of Ocotillo, CA
- 2.0 19km ESE of Julian, CA
- 2.2 9km SE of Lake Henshaw, CA
- 1.6 19km ESE of Julian, CA
- 1.6 19km ESE of Julian, CA
- 1.7 26km SSW of Ocotillo Wells, CA
- 1.9 27km SSW of Ocotillo Wells, CA
- 1.9 6km NNW of Lakeside, 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.