Earthquake · reviewed by a seismologist
M 2.1md
Earthquake near Yosemite Valley, CA
No earthquake was likely felt in Yosemite Valley in the 24 hours to 3:51 pm PST (23:51 UTC). The last one was M 2.5, 22 km (14 mi) SE, at 7:51 am PDT on 28 August 2026, estimated intensity II (weak) in town. Every earthquake near Yosemite Valley
This page: a magnitude 2.1 earthquake was recorded 40 km (25 mi) north of Yosemite Valley, CA, at 12:20 am PDT on 10 May 2022 (07:20 UTC), 9.5 km deep.
USGS: 24km NE of Hetch Hetchy Reservoir, CA
- When
- 12:20 am PDT on 10 May 2022 ()
- Where
- 40 km (25 mi) north of Yosemite Valley, CA · earthquakes near Yosemite Valley
- Magnitude
- M 2.1 (md)
- Depth
- 9.5 km below the surface
- Felt
- no reports yet
- Nearest
- Tuolumne County, 33 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1646 days ago
Earthquake alerts for Yosemite Valley, CA
Get a notification in this browser when USGS records an earthquake near Yosemite Valley, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Yosemite Valley, 40 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
- Magna, Utah 2020 M 5.7 240,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 44 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.
For this area
The largest earthquake within 50 km since 2016 was M 6.0 on 2021-07-08 — about 680,000 times the energy of this one.
Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:
- 5.8 3 km NE of Mono City, California · 42 km E of this epicentre
- 5.2 23 km S of Walker, California · 23 km NNE of this epicentre
- 5.1 19 km W of Bridgeport, California · 18 km NE of this epicentre
- 5.0 8 km W of Bridgeport, California · 29 km NE of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 38.1032, -119.5970. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Tuolumne County, CA | 33 km (21 mi) | WSW | earthquakes near Tuolumne County |
| Alpine County, CA | 60 km (37 mi) | NNW | earthquakes near Alpine County |
| Mariposa County, CA | 65 km (40 mi) | SSW | earthquakes near Mariposa County |
| Mono County, CA | 67 km (41 mi) | ESE | earthquakes near Mono County |
| Calaveras County, CA | 84 km (52 mi) | W | earthquakes near Calaveras County |
| Douglas County, NV | 89 km (55 mi) | N | earthquakes near Douglas County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
52 earthquakes have been recorded within 50 km since this one.
- 1.6 4 km SSW of Coleville, California
- 1.6 4 km SSW of Coleville, California
- 2.2 6km WSW of Walker, CA
- 2.3 3km W of Walker, CA
- 3.1 3km W of Walker, CA
- 1.6 2 km NW of Walker, California
- 2.3 6km WSW of Walker, CA
- 3.2 4km W of Walker, CA
- 2.9 3km WNW of Walker, CA
- 2.2 3km W of Walker, CA
- 3.0 6km NW of Walker, CA
- 2.0 9km W of Bridgeport, CA
- 1.7 14km E of Yosemite Valley, CA
- 2.3 12km SW of Walker, CA
- 1.9 9 km WSW of Coleville, California
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.
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.