QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

Earthquake near West Bishop, CA

No earthquake was likely felt in West Bishop in the 24 hours to 2:04 pm PST (22:04 UTC). The last one was M 2.3, 15 km (10 mi) WNW, at 4:24 pm PDT on 24 October 2026, estimated intensity II (weak) in town. Every earthquake near West Bishop

This page: a magnitude 1.5 earthquake was recorded 13 km (8 mi) south-southwest of West Bishop, CA, at 5:58 am PST on 4 March 2019 (13:58 UTC), 2.8 km deep.

USGS: 10km WSW of Wilkerson, CA

5:58 am PST, Mar 4, 2019 · · 2.8 km deep · released about 5.9 lb of TNT

10 km30 km60 km120 km N Mono County 81 kmEsmeralda County 96 kmMadera County 111 kmFresno County 116 kmTulare County 117 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
5:58 am PST on 4 March 2019 ()
Where
13 km (8 mi) south-southwest of West Bishop, CA · earthquakes near West Bishop
Magnitude
M 1.5 (md)
Depth
2.8 km below the surface
Felt
no reports yet
Nearest
Mono County, 81 km NNW
Nearest mapped fault
Owens Valley fault, 12 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 2810 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 10 km (6 mi) from the epicentre. In West Bishop, 13 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.

Earthquakes near other towns within 30 km: Bishop, Dixon Lane-Meadow Creek, Big Pine.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 4.8 on 2016-02-16 — about 72,000 times the energy of this one.

Before 2016, the USGS record lists 33 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1986 Chalfant Valley, California Earthquake · 32 km N of this epicentre
  2. 6.2 9 km SW of Aspen Springs, California · 39 km NW of this epicentre
  3. 6.1 11 km WNW of Aspen Springs, California · 48 km NW of this epicentre
  4. 6.1 8 km W of Aspen Springs, California · 43 km NW of this epicentre
  5. 6.1 4 km NNW of Round Valley, California · 25 km NNW 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 37.2523, -118.5015. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 81 km (50 mi) NNW earthquakes near Mono County
Esmeralda County, NV 96 km (60 mi) NE earthquakes near Esmeralda County
Madera County, CA 111 km (69 mi) W earthquakes near Madera County
Fresno County, CA 116 km (72 mi) WSW earthquakes near Fresno County
Tulare County, CA 117 km (72 mi) SSW earthquakes near Tulare County
Inyo County, CA 124 km (77 mi) SE earthquakes near Inyo County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

43 earthquakes have been recorded within 50 km since this one.

  1. 3.8 6km NE of Dixon Lane-Meadow Creek, CA
  2. 1.7 6km ESE of Round Valley, CA
  3. 2.6 6km SE of Round Valley, CA
  4. 2.0 14km SE of Mammoth Lakes, CA
  5. 2.0 4km NNE of Big Pine, CA
  6. 1.9 4km NE of Big Pine, CA
  7. 1.9 4km NE of Big Pine, CA
  8. 1.7 27km WSW of Wilkerson, CA
  9. 1.8 27km WSW of Wilkerson, CA
  10. 2.1 6km ESE of Round Valley, CA
  11. 2.5 7km ENE of Wilkerson, CA
  12. 1.8 13km SW of Toms Place, CA
  13. 1.8 6km SE of Round Valley, CA
  14. 1.8 6km SE of Round Valley, CA
  15. 2.7 6km SE of Round 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.

On USGS

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