Earthquake · reviewed by a seismologist
M 1.5md
23km S of Mammoth Lakes, CA
- When
- Magnitude
- M 1.5 (md)
- Depth
- 2.8 km below the surface
- Felt
- no reports yet
- Nearest
- Mono County, 56 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2066 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.5 about 6.2 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 37.4288, -119.0168. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 56 km (35 mi) | SSW of here | earthquakes near Mono County |
| Madera County, CA | 69 km (43 mi) | ENE of here | earthquakes near Madera County |
| Mariposa County, CA | 81 km (50 mi) | ESE of here | earthquakes near Mariposa County |
| Fresno County, CA | 93 km (58 mi) | NE of here | earthquakes near Fresno County |
| Tuolumne County, CA | 106 km (66 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.
- 1.8 8km WNW of Round Valley, CA
- 1.5 14km ESE of Yosemite Valley, CA
- 3.1 9km WSW of Toms Place, CA
- 2.6 15km ESE of Yosemite Valley, CA
- 2.9 9km W of Toms Place, CA
- 1.5 20km NNW of Toms Place, CA
- 1.6 22km ESE of Yosemite Valley, CA
- 1.5 21km ESE of Yosemite Valley, CA
- 1.5 22km ESE of Yosemite Valley, CA
- 1.9 24km ESE of Yosemite Valley, CA
- 2.8 13km W of Toms Place, CA
- 2.5 2km S of Round Valley, CA
- 1.6 13km SE of Mammoth Lakes, CA
- 1.8 13km SE of Mammoth Lakes, CA
- 2.0 11km 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 4.4 on 2020-02-01 — it released about 20,000 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.