Earthquake · reviewed by a seismologist
M 1.8ml
6km NW of Desert Hot Springs, CA
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 9.8 km below the surface
- Felt
- no reports yet
- Nearest
- Riverside County, 59 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1876 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
- Magna, Utah 2020 M 5.7 620,000× the energy of this one
- Around the size people start to feel M 3.0 55× the energy of this one
- This earthquake M 1.8 about 17 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 33.9930, -116.5585. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Riverside County, CA | 59 km (37 mi) | WNW of here | earthquakes near Riverside County |
| San Bernardino County, CA | 102 km (63 mi) | SSW of here | earthquakes near San Bernardino County |
| San Diego County, CA | 110 km (68 mi) | N of here | earthquakes near San Diego County |
| Orange County, CA | 118 km (73 mi) | ENE of here | earthquakes near Orange County |
| Imperial County, CA | 154 km (96 mi) | NW of here | earthquakes near Imperial County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.8 13km NNE of Banning, CA
- 1.8 9km NNW of Anza, CA
- 1.7 10km NNW of Anza, CA
- 1.8 10km NNW of Anza, CA
- 1.5 10km NNW of Anza, CA
- 2.3 10km NNW of Anza, CA
- 1.9 10km NNW of Anza, CA
- 3.3 10km NNW of Anza, CA
- 1.6 10km NNW of Anza, CA
- 2.1 9km NNW of Anza, CA
- 1.5 10km NNW of Anza, CA
- 1.6 10km S of Idyllwild, CA
- 1.6 10km S of Idyllwild, CA
- 1.6 10km NNW of Anza, CA
- 3.4 10km NNW 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.5 on 2018-05-08 — it released about 9,400 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.