Earthquake · reviewed by a seismologist
M 1.9md
2km ENE of Round Valley, CA
- When
- Magnitude
- M 1.9 (md)
- Depth
- 10 km below the surface
- Felt
- no reports yet
- Nearest
- Mono County, 61 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1338 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 22 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 5.8 680,000× the energy of this one
- Magna, Utah 2020 M 5.7 480,000× the energy of this one
- Around the size people start to feel M 3.0 43× the energy of this one
- This earthquake M 1.9 about 22 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 37.4197, -118.5737. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 61 km (38 mi) | SSE of here | earthquakes near Mono County |
| Esmeralda County, NV | 92 km (57 mi) | WSW of here | earthquakes near Esmeralda County |
| Madera County, CA | 107 km (66 mi) | ENE of here | earthquakes near Madera County |
| Mariposa County, CA | 119 km (74 mi) | E of here | earthquakes near Mariposa County |
| Fresno County, CA | 121 km (75 mi) | NE of here | earthquakes near Fresno County |
| Inyo County, CA | 141 km (88 mi) | NW of here | earthquakes near Inyo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 2.0 19km SW of Toms Place, CA
- 1.7 2km ESE of Mammoth Lakes, CA
- 1.5 6km E of Round Valley, CA
- 2.0 17km WSW of Toms Place, CA
- 1.5 2km NNE of West Bishop, CA
- 1.8 6km W of Mammoth Lakes, CA
- 2.5 3km N of West Bishop, CA
- 1.7 20km WSW of Round Valley, CA
- 1.8 9km SSE of Mammoth Lakes, CA
- 2.2 18km SW of Toms Place, CA
- 3.0 16km WSW of Toms Place, CA
- 1.8 18km S of Mammoth Lakes, CA
- 2.5 9km SW of Toms Place, CA
- 2.8 22km S of Mammoth Lakes, CA
- 2.9 22km S of Mammoth Lakes, 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 4.8 on 2016-02-16 — it released about 19,000 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.