Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Campo, CA
No earthquake was likely felt in Campo in the 24 hours to 7:56 am PST (15:56 UTC). The last one was M 4.9, 122 km (76 mi) E, at 10:27 am PST on 3 November 2026, estimated intensity II (weak) in town; 321 felt reports to USGS. Every earthquake near Campo
This page: a magnitude 1.8 earthquake was recorded 42 km (26 mi) southeast of Campo, CA, at 12:20 pm PDT on 9 March 2020 (19:20 UTC), 11 km deep.
USGS: 40km SSW of Ocotillo, CA
- When
- 12:20 pm PDT on 9 March 2020 ()
- Where
- 42 km (26 mi) southeast of Campo, CA · earthquakes near Campo
- Magnitude
- M 1.8 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 95 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2437 days ago
Earthquake alerts for Campo, CA
Get a notification in this browser when USGS records an earthquake near Campo, 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 7 km (4 mi) from the epicentre. In Campo, 42 km away, the estimate is intensity I (not felt). 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.
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 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 840,000× the energy of this one
- Around the size people start to feel M 3.0 75× 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 7 earthquakes of M5 or more within 50 km; the five largest:
- 6.1 49 km SSE of Rumorosa, Mexico · 41 km SE of this epicentre
- 5.8 44km SSW of Progreso, B.C., MX · 38 km ESE of this epicentre
- 5.7 8km ESE of Ocotillo, CA · 40 km NNE of this epicentre
- 5.6 37km ENE of Ensenada, B.C., MX · 48 km SSW of this epicentre
- 5.4 62km SSW of Progreso, B.C., MX · 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 32.3870, -116.1025. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 95 km (59 mi) | NW | earthquakes near San Diego County |
| Imperial County, CA | 101 km (63 mi) | NE | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
48 earthquakes have been recorded within 50 km since this one.
- 3.6 10km W of Progreso, B.C., MX
- 2.3 44km ENE of Ensenada, B.C., MX
- 1.5 23km SE of Ocotillo, CA
- 1.6 10km NW of Ocotillo, CA
- 1.6 15km SE of Ocotillo, CA
- 1.6 42km ENE of Ensenada, B.C., MX
- 1.6 20km WSW of El Centro, CA
- 1.6 20km WSW of El Centro, CA
- 1.7 16km SE of Ocotillo, CA
- 1.8 24km ESE of Campo, CA
- 1.7 41km SSE of Tecate, B.C., MX
- 1.8 19km ESE of Ocotillo, CA
- 1.8 14km W of Progreso, B.C., MX
- 1.9 13km W of Progreso, B.C., MX
- 1.7 14km WNW of Progreso, B.C., MX
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.