QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Garnet, CA

No earthquake was likely felt in Garnet in the 24 hours to 12:16 am PST (08:16 UTC). The last one was M 3.6, 60 km (37 mi) SSW, at 12:31 am PDT on 19 August 2026, estimated intensity II (weak) in town; 165 felt reports to USGS. Every earthquake near Garnet

This page: a magnitude 1.5 earthquake was recorded 13 km (8 mi) west-northwest of Garnet, CA, at 4:22 pm PDT on 15 July 2018 (23:22 UTC), 13 km deep.

USGS: 9km NW of Garnet, CA

19 km (12 mi) NW of Cathedral City, CA · 137 km (85 mi) NNE of San Diego, CA

4:22 pm PDT, Jul 15, 2018 · · 13 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Riverside County 62 kmSan Diego County 105 kmSan Bernardino County 107 kmOrange County 113 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
4:22 pm PDT on 15 July 2018 ()
Where
13 km (8 mi) west-northwest of Garnet, CA · earthquakes near Garnet
Magnitude
M 1.5 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Riverside County, 62 km ESE
Nearest mapped fault
San Andreas fault, 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 3030 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. In Garnet, 13 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: Desert Hot Springs, Morongo Valley, Palm Springs, Desert Edge, Cabazon, Yucca Valley.

How big was it?

This earthquake released about 5.4 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 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 4.5 on 2018-05-08 — about 31,000 times the energy of this one.

Before 2016, the USGS record lists 35 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.3 The 1992 Landers, California Earthquake · 31 km NNE of this epicentre
  2. 6.7 The 1918 San Jacinto, California Earthquake · 40 km WSW of this epicentre
  3. 6.3 The 1992 Big Bear, California Earthquake · 34 km NW of this epicentre
  4. 6.1 The 1992 Joshua Tree, California Earthquake · 27 km E of this epicentre
  5. 6.0 The 1948 Desert Hot Springs, California Earthquake · 26 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 33.9613, -116.6077. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Riverside County, CA 62 km (38 mi) ESE earthquakes near Riverside County
San Diego County, CA 105 km (66 mi) S earthquakes near San Diego County
San Bernardino County, CA 107 km (66 mi) NNE earthquakes near San Bernardino County
Orange County, CA 113 km (70 mi) WSW earthquakes near Orange County
Imperial County, CA 155 km (96 mi) SE earthquakes near Imperial County

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

Aftershocks so far

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

  1. 2.1 9km SW of Morongo Valley, CA
  2. 1.7 4km WNW of Cabazon, CA
  3. 2.7 18km ENE of Thousand Palms, CA
  4. 1.9 3km SSE of Yucca Valley, CA
  5. 1.8 18km ENE of Thousand Palms, CA
  6. 1.6 8km NE of Cabazon, CA
  7. 1.5 18km ENE of Thousand Palms, CA
  8. 3.0 18km ENE of Thousand Palms, CA
  9. 1.6 18km ENE of Thousand Palms, CA
  10. 1.9 8km SSW of Big Bear Lake, CA
  11. 1.5 9km SSW of Big Bear Lake, CA
  12. 1.8 9km SSW of Big Bear Lake, CA
  13. 1.6 12km SSE of Big Bear Lake, CA
  14. 1.8 4km WNW of Cabazon, CA
  15. 1.8 8km WSW of Idyllwild, 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.