QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Beaumont, CA

No earthquake was likely felt in Beaumont in the 24 hours to 3:37 pm PST (23:37 UTC). The last one was M 2.8, 14 km (8 mi) S, at 8:30 pm PDT on 14 October 2026, estimated intensity II (weak) in town; 87 felt reports to USGS. Every earthquake near Beaumont

This page: a magnitude 2.6 earthquake was recorded 5 km (3 mi) northeast of Beaumont, CA, at 11:03 pm PDT on 6 June 2023 (06:03 UTC), 7.2 km deep. 18 people have reported feeling it to USGS.

USGS: 5km NE of Beaumont, CA

10 km (6 mi) N of Beaumont, CA · 135 km (84 mi) E of Los Angeles, CA

11:03 pm PDT, Jun 6, 2023 · · 7.2 km deep · released about 220 lb of TNT

10 km30 km60 km120 km N Orange County 83 kmRiverside County 91 kmSan Diego County 106 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
11:03 pm PDT on 6 June 2023 ()
Where
5 km (3 mi) northeast of Beaumont, CA · earthquakes near Beaumont
Magnitude
M 2.6 (ml)
Depth
7.2 km below the surface
Felt
18 reports · strongest reported intensity IV
Nearest
Orange County, 83 km WSW
Nearest mapped fault
San Gorgonio Pass fault, under 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 1188 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 22 km (14 mi) from the epicentre. In Beaumont, 5 km away, the estimate is intensity III (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.

Likely felt in: Beaumont 5 km, intensity III · Banning 8 km, intensity III · Yucaipa 12 km, intensity II · San Jacinto 20 km, intensity II · Mentone 21 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 730 times the energy of this one.

Before 2016, the USGS record lists 21 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1918 San Jacinto, California Earthquake · 23 km S of this epicentre
  2. 6.3 The 1992 Big Bear, California Earthquake · 29 km NNE of this epicentre
  3. 6.2 3 km SE of San Bernardino, California · 32 km WNW of this epicentre
  4. 6.0 The 1986 North Palm Springs, California Earthquake · 31 km E of this epicentre
  5. 5.6 7km ENE of Running Springs, CA · 32 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 33.9657, -116.9460. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orange County, CA 83 km (52 mi) WSW earthquakes near Orange County
Riverside County, CA 91 km (57 mi) ESE earthquakes near Riverside County
San Diego County, CA 106 km (66 mi) S earthquakes near San Diego County
San Bernardino County, CA 121 km (75 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

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

  1. 1.9 6km ENE of Desert Hot Springs, CA
  2. 2.4 3km N of Big Bear City, CA
  3. 1.9 6km S of Redlands, CA
  4. 2.0 10km ENE of Cabazon, CA
  5. 2.1 2km WSW of Redlands, CA
  6. 1.6 1km NW of Loma Linda, CA
  7. 2.5 10km NE of Cabazon, CA
  8. 2.3 11 km ENE of Cabazon, CA
  9. 2.0 11km ENE of Cabazon, CA
  10. 1.6 5km WSW of Yucaipa, CA
  11. 1.8 8km SSW of Idyllwild, CA
  12. 1.7 11km N of Cabazon, CA
  13. 2.2 10km N of Banning, CA
  14. 1.7 12 km NNE of Cabazon, CA
  15. 1.5 12km W of Anza, 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.