QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Bishop, CA

Yes: an earthquake was likely felt in Bishop in the last 24 hours. M 1.9, 12 km (8 mi) WNW of Bishop, at 8:40 am PST on 13 November 2026 (16:40 UTC); the estimated shaking in Bishop was intensity II (weak). Every earthquake near Bishop

This page: a magnitude 1.7 earthquake was recorded 14 km (9 mi) south-southeast of Bishop, CA, at 11:16 pm PDT on 23 April 2018 (06:16 UTC), 2.2 km deep.

USGS: 5km SE of Wilkerson, CA

11:16 pm PDT, Apr 23, 2018 · · 2.2 km deep · released about 9.3 lb of TNT

Every earthquake near Bishop Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Esmeralda County 86 kmMono County 88 kmInyo County 113 kmTulare County 120 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
11:16 pm PDT on 23 April 2018 ()
Where
14 km (9 mi) south-southeast of Bishop, CA · earthquakes near Bishop
Magnitude
M 1.7 (md)
Depth
2.2 km below the surface
Felt
no reports yet
Nearest
Esmeralda County, 86 km NE
Nearest mapped fault
Southern Sierra Nevada fault, 5 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 3123 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 12 km (7 mi) from the epicentre. In Bishop, 14 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: Big Pine 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 46,000 times the energy of this one.

Before 2016, the USGS record lists 22 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1986 Chalfant Valley, California Earthquake · 34 km NNW of this epicentre
  2. 6.1 4 km NNW of Round Valley, California · 34 km NW of this epicentre
  3. 6.0 Near Bishop, California · 12 km NW of this epicentre
  4. 6.0 Mammoth Lakes area, California · 50 km NW of this epicentre
  5. 6.0 Mammoth Lakes area, California · 50 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 37.2450, -118.3413. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Esmeralda County, NV 86 km (54 mi) NE earthquakes near Esmeralda County
Mono County, CA 88 km (55 mi) NNW earthquakes near Mono County
Inyo County, CA 113 km (70 mi) SE earthquakes near Inyo County
Tulare County, CA 120 km (74 mi) SSW earthquakes near Tulare County
Fresno County, CA 128 km (80 mi) WSW earthquakes near Fresno County

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

Aftershocks so far

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

  1. 1.6 3km WSW of Wilkerson, CA
  2. 2.0 14km SW of Toms Place, CA
  3. 1.6 35 km NE of Independence, California
  4. 1.5 17 km ENE of Swall Meadows, California
  5. 1.6 11km WSW of Round Valley, CA
  6. 1.6 7 km SE of Big Pine, California
  7. 1.6 13km SW of Toms Place, CA
  8. 1.6 13km SW of Toms Place, CA
  9. 1.8 4km ESE of Round Valley, CA
  10. 1.6 5km S of Round Valley, CA
  11. 2.0 3km ENE of Round Valley, CA
  12. 1.6 6km NE of Big Pine, CA
  13. 1.7 8km NNE of Big Pine, CA
  14. 2.1 4km NE of Round Valley, CA
  15. 1.6 4km E 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.