QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near West Bishop, CA

No earthquake was likely felt in West Bishop in the 24 hours to 1:00 pm PST (21:00 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 2.5 earthquake was recorded 8 km (5 mi) west-northwest of West Bishop, CA, at 5:20 am PDT on 15 April 2019 (12:20 UTC), 10 km deep. 2 people have reported feeling it to USGS.

USGS: 6km SE of Round Valley, CA

5:20 am PDT, Apr 15, 2019 · · 10 km deep · released about 180 lb of TNT

10 km30 km60 km120 km N Mono County 67 kmEsmeralda County 91 kmMadera County 109 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
5:20 am PDT on 15 April 2019 ()
Where
8 km (5 mi) west-northwest of West Bishop, CA · earthquakes near West Bishop
Magnitude
M 2.5 (md)
Depth
10 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Mono County, 67 km NNW
Nearest mapped fault
Round 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 2767 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In West Bishop, 8 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: West Bishop 8 km, intensity II · Dixon Lane-Meadow Creek 11 km, intensity II · Bishop 13 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 2,400 times the energy of this one.

Before 2016, the USGS record lists 38 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1986 Chalfant Valley, California Earthquake · 19 km NNE of this epicentre
  2. 6.2 9 km SW of Aspen Springs, California · 27 km WNW of this epicentre
  3. 6.1 11 km WNW of Aspen Springs, California · 35 km NW of this epicentre
  4. 6.1 8 km W of Aspen Springs, California · 31 km NW of this epicentre
  5. 6.1 4 km NNW of Round Valley, California · 11 km NW 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 37.3800, -118.5388. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 67 km (41 mi) NNW earthquakes near Mono County
Esmeralda County, NV 91 km (57 mi) ENE earthquakes near Esmeralda County
Madera County, CA 109 km (68 mi) W earthquakes near Madera County
Fresno County, CA 121 km (75 mi) SW earthquakes near Fresno County
Inyo County, CA 136 km (84 mi) SE earthquakes near Inyo County

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

Aftershocks so far

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

  1. 1.7 18km SW of Toms Place, CA
  2. 1.7 10km SSW of Round Valley, CA
  3. 2.9 5km ENE of Round Valley, CA
  4. 1.6 5km ENE of Round Valley, CA
  5. 1.6 13km WSW of Toms Place, CA
  6. 1.5 5km NNE of Wilkerson, CA
  7. 2.1 22km SW of Toms Place, CA
  8. 1.5 10km S of Toms Place, CA
  9. 2.2 14km SE of Mammoth Lakes, CA
  10. 1.5 16km SSE of Mammoth Lakes, CA
  11. 1.6 16km WSW of Toms Place, CA
  12. 1.6 24km S of Mammoth Lakes, CA
  13. 2.3 14km SE of Mammoth Lakes, CA
  14. 1.5 3km ESE of Bishop, CA
  15. 2.6 1km SSW 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.