Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near Mammoth Lakes, CA
No earthquake was likely felt in Mammoth Lakes in the 24 hours to 7:39 pm PST (03:39 UTC). The last one was M 2.9, 26 km (16 mi) SSE, at 3:54 am PDT on 24 October 2026, estimated intensity II (weak) in town. Every earthquake near Mammoth Lakes
This page: a magnitude 1.6 earthquake was recorded 3 km (2 mi) east-southeast of Mammoth Lakes, CA, at 2:06 pm PDT on 10 September 2017 (21:06 UTC), less than 1 km deep. 3 people have reported feeling it to USGS.
USGS: California-Nevada border region
- When
- 2:06 pm PDT on 10 September 2017 ()
- Where
- 3 km (2 mi) east-southeast of Mammoth Lakes, CA · earthquakes near Mammoth Lakes
- Magnitude
- M 1.6 (md)
- Depth
- -0.7 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- Mono County, 31 km NNE
- Nearest mapped fault
- Hilton Creek fault, 3 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3341 days ago
Earthquake alerts for Mammoth Lakes, CA
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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 11 km (7 mi) from the epicentre. In Mammoth Lakes, 3 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.
Likely felt in: Mammoth Lakes 3 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
- Around the size people start to feel M 3.0 120× the energy of this one
- This earthquake M 1.6 about 8.1 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 37.6387, -118.9462. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Mono County, CA | 31 km (20 mi) | NNE | earthquakes near Mono County |
| Mariposa County, CA | 85 km (53 mi) | W | earthquakes near Mariposa County |
| Madera County, CA | 85 km (53 mi) | WSW | earthquakes near Madera County |
| Tuolumne County, CA | 99 km (62 mi) | WNW | earthquakes near Tuolumne County |
| Mineral County, NV | 108 km (67 mi) | NNE | earthquakes near Mineral County |
| Fresno County, CA | 116 km (72 mi) | SSW | 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.
- 1.8 California-Nevada border region
- 1.7 11 km WNW of Aspen Springs, California
- 2.3 12 km WSW of Aspen Springs, California
- 2.2 12 km WSW of Aspen Springs, California
- 3.3 12 km WSW of Aspen Springs, California
- 1.9 11 km WNW of Aspen Springs, California
- 2.0 11 km WSW of Aspen Springs, California
- 2.4 14 km SW of Aspen Springs, California
- 1.9 14 km W of Aspen Springs, California
- 2.7 10 km WNW of Aspen Springs, California
- 1.7 14 km SW of Aspen Springs, California
- 1.6 12 km SW of Aspen Springs, California
- 1.5 7 km W of Aspen Springs, California
- 1.5 1 km ENE of Mono City, California
- 1.9 12 km SW of Aspen Springs, 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.