QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Rosedale, CA

No earthquake was likely felt in Rosedale in the 24 hours to 6:53 am PST (14:53 UTC). The last one was M 4.3, 121 km (75 mi) E, at 9:40 am PDT on 13 July 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near Rosedale

This page: a magnitude 1.8 earthquake was recorded 7 km (4 mi) northwest of Rosedale, CA, at 7:01 pm PDT on 1 July 2019 (02:01 UTC), 18 km deep.

USGS: 7km NW of Rosedale, CA

17 km (10 mi) WNW of Bakersfield, CA

7:01 pm PDT, Jul 1, 2019 · · 18 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Kern County 43 kmKings County 91 kmTulare County 96 kmSan Luis Obispo County 114 kmVentura County 119 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
7:01 pm PDT on 1 July 2019 ()
Where
7 km (4 mi) northwest of Rosedale, CA · earthquakes near Rosedale
Magnitude
M 1.8 (ml)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Kern County, 43 km ESE
Nearest mapped fault
New Hope fault, 14 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 2690 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Rosedale, 7 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: Greenacres, Shafter, Oildale, Bakersfield, Wasco, Buttonwillow.

How big was it?

This earthquake released about 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 4.9 on 2016-02-24 — about 36,000 times the energy of this one.

Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.8 Near Bakersfield, California · 39 km ESE of this epicentre
  2. 5.7 11km N of Lamont, CA · 28 km ESE of this epicentre
  3. 5.5 6km SSE of Arvin, CA · 46 km SE of this epicentre
  4. 5.5 The 1952 Bakersfield, California Earthquake · 23 km ESE of this epicentre
  5. 5.2 18km NNE of Lamont, CA · 34 km E 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 35.4287, -119.1953. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 43 km (27 mi) ESE earthquakes near Kern County
Kings County, CA 91 km (56 mi) NW earthquakes near Kings County
Tulare County, CA 96 km (60 mi) NNE earthquakes near Tulare County
San Luis Obispo County, CA 114 km (71 mi) W earthquakes near San Luis Obispo County
Ventura County, CA 119 km (74 mi) S earthquakes near Ventura County
Santa Barbara County, CA 125 km (78 mi) SW earthquakes near Santa Barbara County

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

Aftershocks so far

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

  1. 1.6 5 km ESE of Rosedale, CA
  2. 1.7 10km WSW of Shafter, CA
  3. 1.5 15km NW of Grapevine, CA
  4. 2.2 4km WSW of McFarland, CA
  5. 1.9 18km NNW of Grapevine, CA
  6. 2.6 6km SW of Shafter, CA
  7. 1.9 6km WSW of Shafter, CA
  8. 1.6 6km WSW of Shafter, CA
  9. 1.7 14km ENE of McFarland, CA
  10. 2.3 17km NE of Taft, CA
  11. 2.2 12km N of Grapevine, CA
  12. 1.7 3km ENE of Buttonwillow, CA
  13. 2.1 25km NW of Grapevine, CA
  14. 2.1 24km NW of Grapevine, CA
  15. 1.8 25km E of Maricopa, 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.