Earthquake near Ridgecrest, CA

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 42 km (26 mi) from the epicentre. In Ridgecrest, 36 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: Searles Valley 33 km, intensity II · Ridgecrest 36 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 230,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 10,000× the energy of this one
3. Magna, Utah 2020 M 5.7 7,400× the energy of this one
4. This earthquake M 3.1 about 1,400 lb of TNT
5. Around the size people start to feel M 3.0 this one released 1.5× more

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 7.1 on 2019-07-06 — about 930,000 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

1. 6.3 The 1946 Walker Pass, California Earthquake · 35 km SW of this epicentre Mar 15, 1946
2. 5.8 16km NNE of Ridgecrest, California · 21 km SSE of this epicentre Sep 20, 1995
3. 5.4 14km NW of Inyokern, CA · 33 km SW of this epicentre Mar 15, 1946
4. 5.4 4km N of Inyokern, CA · 32 km SSW of this epicentre Mar 15, 1946
5. 5.4 17km N of Ridgecrest, California · 19 km S of this epicentre Aug 17, 1995

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 35.9447, -117.7007. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.6 10km SSW of Searles Valley, CA 06:30 UTC
2. 1.5 17km SSW of Searles Valley, CA 06:27 UTC
3. 1.9 20km ESE of Little Lake, CA 06:27 UTC
4. 2.4 12km WNW of Searles Valley, CA 06:26 UTC
5. 1.8 11km S of Searles Valley, CA 06:22 UTC
6. 2.0 18km E of Little Lake, CA 06:19 UTC
7. 2.0 18km E of Little Lake, CA 06:08 UTC
8. 1.9 14km SW of Searles Valley, CA 06:02 UTC
9. 2.5 21km WNW of Searles Valley, CA 06:01 UTC
10. 1.9 20km NNE of Ridgecrest, CA 05:56 UTC
11. 1.5 14km SSW of Searles Valley, CA 05:44 UTC
12. 2.7 9km E of Coso Junction, CA 05:29 UTC
13. 3.5 20km NNE of Ridgecrest, CA 05:26 UTC
14. 2.3 8km ESE of Ridgecrest, CA 05:18 UTC
15. 2.0 18km ESE of Little Lake, CA 04:57 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 21:10 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

• The official USGS event page — the source of record for every value above
• Did you feel it? Report it to USGS — reports go to USGS, not to us
• ShakeMap for this event, when USGS has produced one

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