Earthquake · reviewed by a seismologist
M 1.9md
13km W of Toms Place, CA
- When
- Magnitude
- M 1.9 (md)
- Depth
- 4.2 km below the surface
- Felt
- no reports yet
- Nearest
- Mono County, 42 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1355 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 23 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 5.8 660,000× the energy of this one
- Magna, Utah 2020 M 5.7 470,000× the energy of this one
- Around the size people start to feel M 3.0 42× the energy of this one
- This earthquake M 1.9 about 23 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 37.5417, -118.8263. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 42 km (26 mi) | S of here | earthquakes near Mono County |
| Madera County, CA | 90 km (56 mi) | ENE of here | earthquakes near Madera County |
| Mariposa County, CA | 96 km (59 mi) | E of here | earthquakes near Mariposa County |
| Esmeralda County, NV | 108 km (67 mi) | WSW of here | earthquakes near Esmeralda County |
| Tuolumne County, CA | 113 km (70 mi) | ESE of here | earthquakes near Tuolumne County |
| Fresno County, CA | 114 km (71 mi) | NE of here | earthquakes near Fresno County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 2.9 22km S of Mammoth Lakes, CA
- 1.7 13km ESE of Mammoth Lakes, CA
- 1.6 4km WSW of Wilkerson, CA
- 2.0 4km E of Round Valley, CA
- 2.7 3km NE of Round Valley, CA
- 1.6 13km ESE of Mammoth Lakes, CA
- 1.8 10km WNW of Toms Place, CA
- 2.0 19km S of Mammoth Lakes, CA
- 1.7 15km SE of Mammoth Lakes, CA
- 2.2 3km ESE of Round Valley, CA
- 1.6 13km NW of Toms Place, CA
- 1.6 9km SSE of Mammoth Lakes, CA
- 1.6 4km ENE of Round Valley, CA
- 1.6 20km ENE of Mammoth Lakes, CA
- 1.5 13km ESE 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 4.4 on 2020-02-01 — it released about 5,400 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.