QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Laguna Woods, CA

No earthquake was likely felt in Laguna Woods in the 24 hours to 10:54 pm PST (06:54 UTC). The last one was M 3.5, 43 km (26 mi) SSW, at 1:22 pm PDT on 5 October 2026, estimated intensity II (weak) in town; 126 felt reports to USGS. Every earthquake near Laguna Woods

This page: a magnitude 1.8 earthquake was recorded 5 km (3 mi) west-northwest of Laguna Woods, CA, at 10:15 pm PST on 19 February 2025 (06:15 UTC), 14 km deep.

USGS: 4 km WNW of Laguna Woods, CA

5 km (3 mi) S of Irvine, CA

10:15 pm PST, Feb 19, 2025 · · 14 km deep · released about 17 lb of TNT

Every earthquake near Laguna Woods Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 5 kmLos Angeles County 78 kmSan Diego County 114 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
10:15 pm PST on 19 February 2025 ()
Where
5 km (3 mi) west-northwest of Laguna Woods, CA · earthquakes near Laguna Woods
Magnitude
M 1.8 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Orange County, 5 km N
Nearest mapped fault
San Joaquin Hills thrust, 3 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 630 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 1 km (1 mi) from the epicentre. In Laguna Woods, 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: Turtle Rock, Laguna Hills, Irvine, Lake Forest, Aliso Viejo, Mission Viejo.

How big was it?

This earthquake released about 17 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.

  1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 4.1 on 2024-05-01 — about 2,500 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1933 Long Beach, California Earthquake · 21 km W of this epicentre
  2. 6.0 The 1910 Lake Elsinore, California Earthquake · 35 km ENE of this epicentre
  3. 5.4 5km S of Chino Hills, CA · 36 km N of this epicentre
  4. 5.3 7km W of Newport Beach, CA · 22 km W of this epicentre
  5. 5.2 8km ENE of Trabuco Canyon, CA · 25 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 33.6297, -117.7683. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orange County, CA 5 km (3 mi) N earthquakes near Orange County
Los Angeles County, CA 78 km (48 mi) NW earthquakes near Los Angeles County
San Diego County, CA 114 km (71 mi) SE earthquakes near San Diego County

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

Aftershocks so far

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

  1. 1.7 5 km SSE of Home Gardens, CA
  2. 1.8 11 km WNW of Lake Elsinore, CA
  3. 1.6 3 km SW of Yorba Linda, CA
  4. 1.7 5 km SE of Home Gardens, CA
  5. 1.8 3 km ESE of Yorba Linda, CA
  6. 2.0 6 km W of Huntington Beach, CA
  7. 1.5 4 km SE of Home Gardens, CA
  8. 1.6 2 km NNE of Diamond Bar, CA
  9. 2.2 6 km WNW of Mira Loma, CA
  10. 1.7 4 km SE of Home Gardens, CA
  11. 2.6 10 km WNW of Corona, CA
  12. 1.7 7 km SSE of Home Gardens, CA
  13. 2.1 6 km WSW of Norco, CA
  14. 2.2 3 km SSW of Yorba Linda, CA
  15. 1.6 3 km SSW of Yorba Linda, 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.