QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Mammoth Lakes, CA

No earthquake was likely felt in Mammoth Lakes in the 24 hours to 11:59 am PST (19:59 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 2.2 earthquake was recorded 5 km (3 mi) west of Mammoth Lakes, CA, at 8:52 am PST on 26 November 2018 (16:52 UTC), less than 1 km deep.

USGS: 4km W of Mammoth Lakes, CA

8:52 am PST, Nov 26, 2018 · · -0.4 km deep · released about 52 lb of TNT

10 km30 km60 km120 km N Mono County 33 kmMariposa County 79 kmMadera County 80 kmTuolumne County 93 kmMineral County 111 kmFresno County 113 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
8:52 am PST on 26 November 2018 ()
Where
5 km (3 mi) west of Mammoth Lakes, CA · earthquakes near Mammoth Lakes
Magnitude
M 2.2 (md)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Mono County, 33 km NNE
Nearest mapped fault
Hilton Creek fault, 8 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 2905 days ago

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 18 km (11 mi) from the epicentre. In Mammoth Lakes, 5 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 5 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 28 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.2 9 km SW of Aspen Springs, California · 25 km SE of this epicentre
  2. 6.1 11 km WNW of Aspen Springs, California · 18 km ESE of this epicentre
  3. 6.1 8 km W of Aspen Springs, California · 22 km ESE of this epicentre
  4. 6.1 4 km NNW of Round Valley, California · 42 km ESE of this epicentre
  5. 6.0 Mammoth Lakes area, California · 27 km ESE 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 37.6437, -119.0235. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 33 km (20 mi) NNE earthquakes near Mono County
Mariposa County, CA 79 km (49 mi) W earthquakes near Mariposa County
Madera County, CA 80 km (50 mi) SW earthquakes near Madera County
Tuolumne County, CA 93 km (58 mi) WNW earthquakes near Tuolumne County
Mineral County, NV 111 km (69 mi) NNE earthquakes near Mineral County
Fresno County, CA 113 km (70 mi) SSW earthquakes near Fresno 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. 1.5 23 km E of Mono City, California
  2. 1.6 20km SE of Bodie, CA
  3. 1.9 20km SE of Bodie, CA
  4. 1.6 22 km E of Mono City, California
  5. 1.6 23 km E of Mono City, California
  6. 1.8 20km SE of Bodie, CA
  7. 2.1 19km SE of Bodie, CA
  8. 2.7 20km SE of Bodie, CA
  9. 2.3 21km SE of Bodie, CA
  10. 1.5 20 km ENE of Mono City, California
  11. 1.5 23 km E of Mono City, California
  12. 1.6 4km NE of Round Valley, CA
  13. 2.2 10km S of Mammoth Lakes, CA
  14. 2.5 17km SW of Toms Place, CA
  15. 2.8 17km SW of Toms Place, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.