QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near La Habra, CA

No earthquake was likely felt in La Habra in the 24 hours to 2:25 am PST (10:25 UTC). The last one was M 3.2, 27 km (17 mi) SW, at 12:44 am PDT on 9 October 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near La Habra

This page: a magnitude 1.6 earthquake was recorded in La Habra, CA, at 10:53 am PDT on 7 July 2019 (17:53 UTC), 7.0 km deep.

USGS: 2km E of La Habra, CA

in La Habra, CA · 46 km (28 mi) ESE of Los Angeles, CA

10:53 am PDT, Jul 7, 2019 · · 7.0 km deep · released about 8.4 lb of TNT

Every earthquake near La Habra Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 32 kmLos Angeles County 43 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
10:53 am PDT on 7 July 2019 ()
Where
in La Habra, CA · earthquakes near La Habra
Magnitude
M 1.6 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Orange County, 32 km SSE
Nearest mapped fault
Puente Hills blind thrust system, 5 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 2685 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 9 km (6 mi) from the epicentre. 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: La Habra in town, intensity II · Brea 3 km, intensity II · Rowland Heights 5 km, intensity II · Fullerton 7 km, intensity II · Hacienda Heights 8 km, intensity II · La Mirada 8 km, intensity II · Placentia 8 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 8.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.4 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 4.4 on 2018-08-29 — about 13,000 times the energy of this one.

Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1933 Long Beach, California Earthquake · 34 km SSW of this epicentre
  2. 5.9 The 1987 Whittier Narrows, California Earthquake · 20 km NW of this epicentre
  3. 5.8 The 1991 Sierra Madre, California Earthquake · 38 km N of this epicentre
  4. 5.5 The 1990 Upland, California Earthquake · 32 km NE of this epicentre
  5. 5.4 5km S of Chino Hills, CA · 15 km E 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 33.9322, -117.9252. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orange County, CA 32 km (20 mi) SSE earthquakes near Orange County
Los Angeles County, CA 43 km (27 mi) NW earthquakes near Los Angeles County
Ventura County, CA 121 km (75 mi) WNW earthquakes near Ventura County
San Diego County, CA 147 km (91 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

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

  1. 1.5 5km SSW of Baldwin Hills, CA
  2. 2.0 0km WNW of Manhattan Beach, CA
  3. 1.8 0km W of Manhattan Beach, CA
  4. 1.6 3km SSE of Home Gardens, CA
  5. 1.7 21km SSW of Seal Beach, CA
  6. 1.9 6km WNW of Mira Loma, CA
  7. 1.7 5km ENE of San Joaquin Hills, CA
  8. 1.6 3km NNW of Mira Loma, CA
  9. 1.8 3km NNW of Mira Loma, CA
  10. 2.0 4km NNW of Mira Loma, CA
  11. 1.7 1km ESE of Inglewood, CA
  12. 1.8 3km NNW of Mira Loma, CA
  13. 1.6 3km NNW of Mira Loma, CA
  14. 1.9 3km W of Rancho Cucamonga, CA
  15. 1.6 3km NNW of Mira Loma, 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.