Earthquake · reviewed by a seismologist
M 1.9md
29km ENE of North Fork, CA
- When
- Magnitude
- M 1.9 (md)
- Depth
- 24 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Madera County, 49 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1511 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 21 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 5.8 710,000× the energy of this one
- Magna, Utah 2020 M 5.7 500,000× the energy of this one
- Around the size people start to feel M 3.0 45× the energy of this one
- This earthquake M 1.9 about 21 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 37.3650, -119.2335. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Madera County, CA | 49 km (30 mi) | ENE of here | earthquakes near Madera County |
| Mariposa County, CA | 64 km (40 mi) | ESE of here | earthquakes near Mariposa County |
| Mono County, CA | 69 km (43 mi) | SSW of here | earthquakes near Mono County |
| Fresno County, CA | 77 km (48 mi) | NNE of here | earthquakes near Fresno County |
| Tuolumne County, CA | 97 km (60 mi) | SE of here | earthquakes near Tuolumne County |
| Calaveras County, CA | 148 km (92 mi) | SE of here | earthquakes near Calaveras County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.5 11km WNW of Toms Place, CA
- 1.9 14km SE of Mammoth Lakes, CA
- 1.6 22km ESE of Yosemite Valley, CA
- 2.4 7km SE of North Fork, CA
- 1.9 18km SSE of Shaver Lake, CA
- 1.6 8km ESE of Mammoth Lakes, CA
- 2.3 8km ESE of Mammoth Lakes, CA
- 2.0 13km WNW of Round Valley, CA
- 1.9 9km E of Mammoth Lakes, CA
- 2.8 18km SSE of Shaver Lake, CA
- 1.6 21km SE of Yosemite Valley, CA
- 1.7 12km ESE of Mammoth Lakes, CA
- 2.9 14km S of Mammoth Lakes, CA
- 1.9 17km WSW of Toms Place, CA
- 2.3 24km NNE of Squaw Valley, 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 5,800 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.