Earthquake · reviewed by a seismologist
M 1.9ml
18km S of Joshua Tree, CA
- When
- Magnitude
- M 1.9 (ml)
- Depth
- 1.9 km below the surface
- Felt
- no reports yet
- Nearest
- Riverside County, 39 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2328 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 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
- Magna, Utah 2020 M 5.7 560,000× the energy of this one
- Around the size people start to feel M 3.0 50× the energy of this one
- This earthquake M 1.9 about 19 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 33.9755, -116.2977. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Riverside County, CA | 39 km (24 mi) | NW of here | earthquakes near Riverside County |
| San Bernardino County, CA | 99 km (61 mi) | S of here | earthquakes near San Bernardino County |
| San Diego County, CA | 115 km (71 mi) | NNE of here | earthquakes near San Diego County |
| Imperial County, CA | 136 km (84 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
30 earthquakes have been recorded within 50 km since this one.
- 2.1 9km NE of Indio, CA
- 1.7 19km N of Yucca Valley, CA
- 2.0 12km SE of Yucca Valley, CA
- 1.6 9km NW of Morongo Valley, CA
- 1.6 5km NE of Cabazon, CA
- 1.9 23km SSE of Twentynine Palms, CA
- 1.7 24km SSE of Twentynine Palms, CA
- 1.7 24km SSE of Twentynine Palms, CA
- 1.8 24km SSE of Twentynine Palms, CA
- 1.8 22km N of Yucca Valley, CA
- 1.6 5km N of Yucca Valley, CA
- 1.7 17km WNW of Morongo Valley, CA
- 1.9 10km N of Cabazon, CA
- 1.6 17 km SW of La Quinta, CA
- 1.6 8km NNE of Banning, 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 8,500 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.