Earthquake · reviewed by a seismologist
M 4.3mw
18km S of Trona, CA
- When
- Magnitude
- M 4.3 (mw)
- Depth
- 4.8 km below the surface
- Felt
- 326 reports · strongest reported intensity V
- Measured shaking
- intensity V (ShakeMap)
- USGS impact alert
- green
- Nearest
- Inyo County, 107 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1440 days ago
This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 326 people have reported feeling it to USGS.
How big was it?
This earthquake released about 40 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 4,300× the energy of this one
- Mineral, Virginia 2011 M 5.8 190× the energy of this one
- Magna, Utah 2020 M 5.7 130× the energy of this one
- This earthquake M 4.3 about 40 tons of TNT
- Around the size people start to feel M 3.0 this one released 83× more
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 35.6027, -117.4060. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Inyo County, CA | 107 km (66 mi) | S of here | earthquakes near Inyo County |
| Kern County, CA | 123 km (77 mi) | ENE of here | earthquakes near Kern County |
| San Bernardino County, CA | 139 km (86 mi) | NW 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
53 earthquakes have been recorded within 50 km since this one.
- 1.7 24km N of Searles Valley, CA
- 2.1 23km E of Little Lake, CA
- 1.8 16km E of Ridgecrest, CA
- 1.9 15km WSW of Searles Valley, CA
- 1.7 23km E of Little Lake, CA
- 1.9 15km SW of Searles Valley, CA
- 1.6 12km SW of Searles Valley, CA
- 1.5 14km ENE of Ridgecrest, CA
- 1.9 12km NE of Ridgecrest, CA
- 1.6 18km ESE of Little Lake, CA
- 1.9 11km SW of Searles Valley, CA
- 1.8 14km S of Searles Valley, CA
- 2.1 14km SSW of Searles Valley, CA
- 1.6 21km ESE of Little Lake, CA
- 2.1 15km SSW of Searles Valley, 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 7.1 on 2019-07-06 — it released about 17,000 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.