QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6km NE of San Jacinto, CA

· 10 km deep · released about 8.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 82 kmRiverside County 84 kmSan Diego County 90 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
Magnitude
M 1.6 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Orange County, 82 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1543 days ago

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

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.

Where

Epicentre 33.8227, -116.9067. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orange County, CA 82 km (51 mi) ENE of here earthquakes near Orange County
Riverside County, CA 84 km (52 mi) W of here earthquakes near Riverside County
San Diego County, CA 90 km (56 mi) N of here earthquakes near San Diego County
San Bernardino County, CA 133 km (83 mi) SSW of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 2.1 8km NNW of Anza, CA
  2. 1.7 3km S of Hemet, CA
  3. 1.6 5km E of Yucaipa, CA
  4. 1.6 1km NW of Beaumont, CA
  5. 1.8 9km NE of Cabazon, CA
  6. 1.8 15km WNW of Morongo Valley, CA
  7. 1.7 10km S of Idyllwild, CA
  8. 1.6 6km NNE of Beaumont, CA
  9. 3.2 8km NNE of Banning, CA
  10. 2.1 14km NW of Aguanga, CA
  11. 1.9 2km WNW of Beaumont, CA
  12. 2.2 1km SSE of Colton, CA
  13. 2.2 1km SE of Loma Linda, CA
  14. 1.9 3km ESE of Valle Vista, CA
  15. 2.1 9km SE of Valle Vista, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2018-05-08 — it released about 19,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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