QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Bishop, CA

No earthquake was likely felt in Bishop in the 24 hours to 1:58 pm PST (21:58 UTC). The last one was M 2.0, 9 km (5 mi) NW, at 9:02 pm PDT on 30 September 2026, estimated intensity II (weak) in town. Every earthquake near Bishop

This page: a magnitude 1.7 earthquake was recorded 29 km (18 mi) north of Bishop, CA, at 10:15 pm PDT on 7 October 2019 (05:15 UTC), 8.2 km deep.

USGS: 25km ENE of Toms Place, CA

10:15 pm PDT, Oct 7, 2019 · · 8.2 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Mono County 52 kmEsmeralda County 70 kmMineral County 99 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
10:15 pm PDT on 7 October 2019 ()
Where
29 km (18 mi) north of Bishop, CA · earthquakes near Bishop
Magnitude
M 1.7 (md)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Mono County, 52 km NW
Nearest mapped fault
White Mountains fault, 6 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 1696 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 9 km (6 mi) from the epicentre. In Bishop, 29 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 11 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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 39,000 times the energy of this one.

Before 2016, the USGS record lists 47 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1986 Chalfant Valley, California Earthquake · 10 km SSW of this epicentre
  2. 6.2 9 km SW of Aspen Springs, California · 38 km WSW of this epicentre
  3. 6.1 11 km WNW of Aspen Springs, California · 38 km W of this epicentre
  4. 6.1 8 km W of Aspen Springs, California · 36 km WSW of this epicentre
  5. 6.1 4 km NNW of Round Valley, California · 26 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 37.6272, -118.4047. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 52 km (33 mi) NW earthquakes near Mono County
Esmeralda County, NV 70 km (44 mi) ENE earthquakes near Esmeralda County
Mineral County, NV 99 km (61 mi) N earthquakes near Mineral County
Madera County, CA 128 km (79 mi) WSW earthquakes near Madera County
Fresno County, CA 147 km (91 mi) SW earthquakes near Fresno County
Inyo County, CA 148 km (92 mi) SE earthquakes near Inyo County

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

Aftershocks so far

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

  1. 2.9 8km ESE of Mammoth Lakes, CA
  2. 1.6 2km SSE of West Bishop, CA
  3. 1.5 12km E of Mammoth Lakes, CA
  4. 2.9 12km E of Mammoth Lakes, CA
  5. 2.9 12km E of Mammoth Lakes, CA
  6. 1.7 8km NNW of West Bishop, CA
  7. 1.8 15km SW of Toms Place, CA
  8. 2.9 15km SW of Toms Place, CA
  9. 2.0 5km E of Mammoth Lakes, CA
  10. 1.6 5km E of Mammoth Lakes, CA
  11. 2.2 5km E of Mammoth Lakes, CA
  12. 1.7 10km S of Round Valley, CA
  13. 1.7 14km SE of Mammoth Lakes, CA
  14. 1.7 7km NNW of Round Valley, CA
  15. 1.5 17km S 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.