QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Campo, CA

No earthquake was likely felt in Campo in the 24 hours to 12:59 pm PST (20:59 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 1.5 earthquake was recorded 33 km (20 mi) east of Campo, CA, at 1:09 am PDT on 24 May 2025 (08:09 UTC), 8.3 km deep.

USGS: 21 km SW of Ocotillo, CA

98 km (61 mi) ESE of San Diego, CA

1:09 am PDT, May 24, 2025 · · 8.3 km deep · released about 5.9 lb of TNT

Every earthquake near Campo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Diego County 78 kmImperial County 88 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
1:09 am PDT on 24 May 2025 ()
Where
33 km (20 mi) east of Campo, CA · earthquakes near Campo
Magnitude
M 1.5 (ml)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
San Diego County, 78 km NW
Nearest mapped fault
Elsinore fault, 24 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 538 days ago

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 6 km (4 mi) from the epicentre. In Campo, 33 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 4.8 on 2023-12-01 — about 80,000 times the energy of this one.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 5.7 8km ESE of Ocotillo, CA · 24 km NE of this epicentre
  2. 5.3 15km SSW of Progreso, B.C., MX · 48 km ESE of this epicentre
  3. 5.2 21km NW of Ocotillo, CA · 33 km N of this epicentre
  4. 5.1 40km SSW of Progreso, B.C., MX · 49 km SE of this epicentre
  5. 5.0 26km NE of Pine Valley, CA · 46 km NNW 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 32.5803, -116.1233. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Diego County, CA 78 km (49 mi) NW earthquakes near San Diego County
Imperial County, CA 88 km (55 mi) NE earthquakes near Imperial County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

49 earthquakes have been recorded within 50 km since this one.

  1. 1.9 16 km WNW of Progreso, B.C., MX
  2. 1.7 21 km ESE of Ocotillo, CA
  3. 2.1 16 km WNW of Progreso, B.C., MX
  4. 1.6 16 km WNW of Progreso, B.C., MX
  5. 1.9 16 km WNW of Progreso, B.C., MX
  6. 1.5 1 km SSW of Ocotillo, CA
  7. 2.9 16 km WNW of Progreso, B.C., MX
  8. 2.4 16 km WNW of Progreso, B.C., MX
  9. 2.3 16 km WNW of Progreso, B.C., MX
  10. 1.8 16 km WNW of Progreso, B.C., MX
  11. 1.6 15 km WNW of Progreso, B.C., MX
  12. 1.8 16 km WNW of Progreso, B.C., MX
  13. 3.0 16 km WNW of Progreso, B.C., MX
  14. 1.7 16 km WNW of Progreso, B.C., MX
  15. 2.9 13 km SE of Ocotillo, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.