Earthquake near Frazier Park, CA

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 Frazier Park, 3 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: Frazier Park 3 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 8.7 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 1,700,000× the energy of this one
2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
3. Around the size people start to feel M 3.0 110× the energy of this one
4. This earthquake M 1.6 about 8.7 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 4.1 on 2016-03-12 — about 5,400 times the energy of this one.

Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:

1. 7.5 The 1952 Kern County, California Earthquake · 13 km NNW of this epicentre Jul 21, 1952
2. 6.0 Tejon Pass, California · 7 km NE of this epicentre Oct 23, 1916
3. 5.8 13km WNW of Grapevine, CA · 17 km NW of this epicentre Jul 21, 1952
4. 5.5 Southwest of Tejon Pass, California · 18 km SSW of this epicentre Oct 23, 1916
5. 5.5 13km ENE of Grapevine, CA · 20 km NE of this epicentre Jul 23, 1952

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 34.8520, -118.9450. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.6 15km NNE of Ojai, CA 11:08 UTC
2. 1.7 5km NW of Lamont, CA 18:26 UTC
3. 1.8 5km ENE of Lebec, CA 13:47 UTC
4. 3.2 9km ESE of Maricopa, CA 11:12 UTC
5. 2.0 17km S of Maricopa, CA 06:52 UTC
6. 1.6 18km NNW of Pine Mountain Club, CA 01:59 UTC
7. 1.7 3km NW of Castaic, CA 19:50 UTC
8. 3.4 3km NW of Castaic, CA 19:46 UTC
9. 1.6 4km S of Frazier Park, CA 20:18 UTC
10. 1.9 15km N of Santa Paula, CA 01:51 UTC
11. 1.7 1km NNW of Frazier Park, CA 02:50 UTC
12. 1.6 21km N of Fillmore, CA 00:02 UTC
13. 1.8 3km NW of Frazier Park, CA 06:01 UTC
14. 1.9 9km WNW of Lake Hughes, CA 20:05 UTC
15. 1.5 9km WNW of Lake Hughes, CA 18:20 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 18:16 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.