QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

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 1.5 earthquake was recorded 21 km (13 mi) northwest of Bishop, CA, at 4:24 am PDT on 12 April 2017 (11:24 UTC), 8.4 km deep.

USGS: 8 km E of Swall Meadows, California

4:24 am PDT, Apr 12, 2017 · · 8.4 km deep · released about 5.6 lb of TNT

10 km30 km60 km120 km N Mono County 54 kmEsmeralda County 86 kmMadera County 111 kmMineral 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
4:24 am PDT on 12 April 2017 ()
Where
21 km (13 mi) northwest of Bishop, CA · earthquakes near Bishop
Magnitude
M 1.5 (md)
Depth
8.4 km below the surface
Felt
no reports yet
Nearest
Mono County, 54 km NNW
Nearest mapped fault
Long Valley fault, 9 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 3500 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 6 km (4 mi) from the epicentre. In Bishop, 21 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: Dixon Lane-Meadow Creek, West Bishop.

How big was it?

This earthquake released about 5.6 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 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 78,000 times the energy of this one.

Before 2016, the USGS record lists 41 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1986 Chalfant Valley, California Earthquake · 10 km ENE of this epicentre
  2. 6.2 9 km SW of Aspen Springs, California · 23 km W of this epicentre
  3. 6.1 11 km WNW of Aspen Springs, California · 27 km WNW of this epicentre
  4. 6.1 8 km W of Aspen Springs, California · 24 km WNW of this epicentre
  5. 6.1 4 km NNW of Round Valley, California · 7 km SW 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 37.5058, -118.5458. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 54 km (34 mi) NNW earthquakes near Mono County
Esmeralda County, NV 86 km (53 mi) ENE earthquakes near Esmeralda County
Madera County, CA 111 km (69 mi) WSW earthquakes near Madera County
Mineral County, NV 113 km (70 mi) N earthquakes near Mineral County
Fresno County, CA 129 km (80 mi) SW earthquakes near Fresno County
Inyo County, CA 146 km (91 mi) SE earthquakes near Inyo 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 10 km WSW of Aspen Springs, California
  2. 1.8 11 km W of Aspen Springs, California
  3. 1.5 12 km WNW of Aspen Springs, California
  4. 1.6 10 km W of Aspen Springs, California
  5. 2.1 8 km E of Mammoth Lakes, California
  6. 1.7 8 km E of Mammoth Lakes, California
  7. 2.1 8 km E of Mammoth Lakes, California
  8. 1.5 11 km W of Aspen Springs, California
  9. 2.2 5 km E of Mammoth Lakes, California
  10. 1.6 1 km SE of Mammoth Lakes, California
  11. 1.7 9 km ESE of Mammoth Lakes, California
  12. 1.7 3 km NNW of West Bishop, California
  13. 1.7 2 km NNW of West Bishop, California
  14. 1.6 14 km SW of Aspen Springs, California
  15. 1.9 14 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

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