Earthquake · reviewed by a seismologist
M 2.9md
13km SE of Mammoth Lakes, CA
- When
- Magnitude
- M 2.9 (md)
- Depth
- 3.9 km below the surface
- Felt
- 8 reports · strongest reported intensity III
- Nearest
- Mono County, 39 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1476 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.
How big was it?
This earthquake released about 650 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 23,000× the energy of this one
- Magna, Utah 2020 M 5.7 16,000× the energy of this one
- Around the size people start to feel M 3.0 1.5× the energy of this one
- This earthquake M 2.9 about 650 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 37.5630, -118.8617. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mono County, CA | 39 km (24 mi) | S of here | earthquakes near Mono County |
| Madera County, CA | 88 km (55 mi) | ENE of here | earthquakes near Madera County |
| Mariposa County, CA | 93 km (58 mi) | E of here | earthquakes near Mariposa County |
| Tuolumne County, CA | 110 km (68 mi) | ESE of here | earthquakes near Tuolumne County |
| Esmeralda County, NV | 111 km (69 mi) | WSW of here | earthquakes near Esmeralda County |
| Mineral County, NV | 113 km (70 mi) | SSW of here | earthquakes near Mineral County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
56 earthquakes have been recorded within 50 km since this one.
- 1.8 17km WSW of Toms Place, CA
- 2.4 5km NE of Dixon Lane-Meadow Creek, CA
- 1.6 18km WSW of Toms Place, CA
- 1.7 19km SE of Yosemite Valley, CA
- 1.5 15km WSW of Round Valley, CA
- 1.5 31km NE of North Fork, CA
- 2.5 2km E of Round Valley, CA
- 1.5 28km NE of Oakhurst, CA
- 1.7 16km SW of Toms Place, CA
- 3.0 16km SW of Toms Place, CA
- 1.9 9km SSE of Mammoth Lakes, CA
- 2.0 1km SE of Round Valley, CA
- 1.8 9km SSE of Mammoth Lakes, CA
- 2.2 9km SSE of Mammoth Lakes, CA
- 1.6 10km SSE 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 190 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.