QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Redlands, CA

No earthquake was likely felt in Redlands in the 24 hours to 3:19 pm PDT (22:19 UTC). The last one was M 2.4, 7 km (4 mi) W, at 11:36 pm PDT on 18 October 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Redlands

This page: a magnitude 1.7 earthquake was recorded in Redlands, CA, at 12:49 am PDT on 14 October 2026 (07:49 UTC), 15 km deep.

USGS: 1 km SSW of Redlands, CA

in Redlands, CA · 113 km (70 mi) E of Los Angeles, CA

12:49 am PDT, Oct 14, 2026 · · 15 km deep · released about 10 lb of TNT

10 km30 km60 km120 km N Orange County 68 kmLos Angeles County 100 kmRiverside County 115 kmSan Diego County 120 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
12:49 am PDT on 14 October 2026 ()
Where
in Redlands, CA · earthquakes near Redlands
Magnitude
M 1.7 (ml)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Orange County, 68 km SW
Nearest mapped fault
Crafton Hills fault, 1 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 7 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. 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: Mentone, Loma Linda, Highland, Grand Terrace, San Bernardino, Colton.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 4.5 on 2018-05-08 — about 16,000 times the energy of this one.

Before 2016, the USGS record lists 24 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1918 San Jacinto, California Earthquake · 37 km SSE of this epicentre
  2. 6.3 The 1992 Big Bear, California Earthquake · 38 km ENE of this epicentre
  3. 6.2 3 km SE of San Bernardino, California · 8 km NW of this epicentre
  4. 6.0 The 1910 Lake Elsinore, California Earthquake · 43 km SSW of this epicentre
  5. 5.6 7km ENE of Running Springs, CA · 26 km NNE 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 34.0455, -117.1893. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orange County, CA 68 km (42 mi) SW earthquakes near Orange County
Los Angeles County, CA 100 km (62 mi) W earthquakes near Los Angeles County
Riverside County, CA 115 km (71 mi) ESE earthquakes near Riverside County
San Diego County, CA 120 km (75 mi) SSE earthquakes near San Diego County
San Bernardino County, CA 129 km (80 mi) NE earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 1.6 3 km SE of Home Gardens, CA
  2. 1.0 7 km NNE of Fontana, CA
  3. 1.0 8 km ENE of Moreno Valley, CA
  4. 1.4 3 km ESE of Nuevo, CA
  5. 1.1 10 km NNE of Banning, CA
  6. 1.3 3 km SE of Loma Linda, CA
  7. 1.3 3 km SE of Loma Linda, CA
  8. 0.6 10 km SE of Winchester, CA
  9. 2.4 1 km E of Loma Linda, CA
  10. 0.2 12 km ENE of Trabuco Canyon, CA
  11. 0.7 6 km N of Big Bear City, CA
  12. 0.9 2 km SE of Loma Linda, CA
  13. 1.6 1 km SSE of Loma Linda, CA
  14. 0.5 7 km ENE of Cabazon, CA
  15. 0.7 4 km NNE of Moreno Valley, 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.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
review statusautomaticreviewed
longitude-117.19-117.19
latitude34.0434.05
depth14.9414.95
location2 km SSW of Redlands, CA1 km SSW of Redlands, CA
longitude-117.19-117.19
latitude34.0434.04
depth14.8614.94
magnitude1.731.69

On USGS

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