193 km W of Ferndale, California

Yes. A magnitude 2.6 earthquake was recorded 193 km W of Ferndale, California at 05:14 UTC on 2020-09-14, 10 km deep. 2 people have reported feeling it to USGS.

2020-09-14 05:14 UTC · 10 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area

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: 2020-09-14 05:14 UTC
Magnitude: M 2.6 (ml)
Depth: 10 km below the surface
Felt: 2 reports · strongest reported intensity II
Status: Reviewed by a seismologist

USGS · last changed by USGS 2184 days ago · we first saw it 2184 days ago

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 21 km (13 mi) from the epicentre. 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.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
Magna, Utah 2020 M 5.7 45,000× the energy of this one
Around the size people start to feel M 3.0 4× the energy of this one
This earthquake M 2.6 about 240 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 6.6 on 2016-12-08 — about 1,000,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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

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Aftershocks so far

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

2.7 161 km W of Ferndale, California 02:57 UTC
3.3 235 km W of Ferndale, California 08:17 UTC
2.8 200 km W of Ferndale, California 01:26 UTC
3.2 222 km W of Ferndale, California 20:10 UTC
2.7 232 km W of Ferndale, California 10:10 UTC
2.9 238 km W of Ferndale, California 15:25 UTC
2.9 183 km W of Ferndale, California 12:50 UTC
2.7 219 km W of Ferndale, California 17:12 UTC
4.0 165 km WSW of Ferndale, California 23:16 UTC
4.4 145 km WNW of Petrolia, CA 11:36 UTC
2.7 169 km W of Ferndale, California 22:38 UTC
4.3 170 km W of Ferndale, California 16:27 UTC
2.9 234 km W of Ferndale, California 08:30 UTC
2.9 165 km W of Ferndale, California 12:07 UTC
2.8 234 km W of Ferndale, California 10:23 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:17 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.