Earthquake · reviewed by a seismologist
M 1.9md
17km WSW of Round Valley, CA
- When
- Magnitude
- M 1.9 (md)
- Depth
- 12 km below the surface
- Felt
- 1 report
- Nearest
- Mono County, 66 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1512 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
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 37.3337, -118.7562. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 66 km (41 mi) | S of here | earthquakes near Mono County |
| Madera County, CA | 89 km (55 mi) | E of here | earthquakes near Madera County |
| Fresno County, CA | 102 km (63 mi) | NE of here | earthquakes near Fresno County |
| Mariposa County, CA | 105 km (66 mi) | ESE of here | earthquakes near Mariposa County |
| Esmeralda County, NV | 111 km (69 mi) | WSW of here | earthquakes near Esmeralda County |
| Tuolumne County, CA | 131 km (81 mi) | SE of here | earthquakes near Tuolumne 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.
- 1.9 4km WNW of Mammoth Lakes, CA
- 1.8 4km W of Mammoth Lakes, CA
- 1.9 28km S of Mammoth Lakes, CA
- 2.1 2km SSW of Mammoth Lakes, CA
- 1.5 7km NNE of Round Valley, CA
- 1.5 6km ESE of Round Valley, CA
- 1.8 17km WSW of Toms Place, CA
- 1.6 2km W of Bishop, CA
- 1.7 8km ESE of Mammoth Lakes, CA
- 1.9 6km E of Round Valley, CA
- 1.9 9km SW of Toms Place, CA
- 1.6 6km NNE of Big Pine, CA
- 1.6 11km ESE of Mammoth Lakes, CA
- 1.5 10km ENE of Mammoth Lakes, CA
- 2.1 15km SE 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.