QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Bishop, CA

No earthquake was likely felt in Bishop in the 24 hours to 4:46 pm PST (00:46 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 1.6 earthquake was recorded 16 km (10 mi) southwest of Bishop, CA, at 12:40 am PST on 4 March 2019 (08:40 UTC), 2.4 km deep.

USGS: 10km WSW of Wilkerson, CA

12:40 am PST, Mar 4, 2019 · · 2.4 km deep · released about 7.3 lb of TNT

10 km30 km60 km120 km N Mono County 82 kmEsmeralda County 96 kmMadera County 111 kmTulare County 116 kmFresno County 116 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
12:40 am PST on 4 March 2019 ()
Where
16 km (10 mi) southwest of Bishop, CA · earthquakes near Bishop
Magnitude
M 1.6 (md)
Depth
2.4 km below the surface
Felt
no reports yet
Nearest
Mono County, 82 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 11 km (7 mi) from the epicentre. In Bishop, 16 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: West Bishop, Dixon Lane-Meadow Creek, Big Pine.

How big was it?

This earthquake released about 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 59,000 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 · 33 km N of this epicentre
  2. 6.2 9 km SW of Aspen Springs, California · 40 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 · 44 km NW of this epicentre
  5. 6.1 4 km NNW of Round Valley, California · 26 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 37.2463, -118.4955. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 82 km (51 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
Tulare County, CA 116 km (72 mi) SSW earthquakes near Tulare County
Fresno County, CA 116 km (72 mi) WSW earthquakes near Fresno County
Inyo County, CA 123 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

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

  1. 2.2 15km SW of Toms Place, CA
  2. 1.6 12km SE of Mammoth Lakes, CA
  3. 1.9 6km NE of Dixon Lane-Meadow Creek, CA
  4. 3.0 6km NE of Dixon Lane-Meadow Creek, CA
  5. 2.2 5km NE of Dixon Lane-Meadow Creek, CA
  6. 2.2 4km ENE of Dixon Lane-Meadow Creek, CA
  7. 3.8 6km NE of Dixon Lane-Meadow Creek, CA
  8. 1.7 6km ESE of Round Valley, CA
  9. 2.6 6km SE of Round Valley, CA
  10. 2.0 14km SE of Mammoth Lakes, CA
  11. 2.0 4km NNE of Big Pine, CA
  12. 1.9 4km NE of Big Pine, CA
  13. 1.9 4km NE of Big Pine, CA
  14. 1.7 27km WSW of Wilkerson, CA
  15. 1.8 27km WSW of Wilkerson, 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.