162 km NNE of Cruz Bay, U.S. Virgin Islands

Yes. A magnitude 4.2 earthquake was recorded 162 km NNE of Cruz Bay, U.S. Virgin Islands at 04:33 UTC on 2023-04-10, 34 km deep.

2023-04-10 04:33 UTC · 34 km deep · released about 30 tons of TNT

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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: 2023-04-10 04:33 UTC
Magnitude: M 4.2 (md)
Depth: 34 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 1243 days ago · we first saw it 1243 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 107 km (66 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 30 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.2 would have released about 32 times as much.

Northridge, California 1994 M 6.7 5,600× the energy of this one
Mineral, Virginia 2011 M 5.8 250× the energy of this one
Magna, Utah 2020 M 5.7 180× the energy of this one
This earthquake M 4.2 about 30 tons of TNT
Around the size people start to feel M 3.0 this one released 63× 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 5.0 on 2019-10-06 — about 14 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

6.2 131 km NNE of Cruz Bay, U.S. Virgin Islands · 39 km WSW of this epicentre Sep 6, 1919
5.0 127 km NNE of Cruz Bay, U.S. Virgin Islands · 43 km SW of this epicentre Jan 13, 1993

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

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

4.0 172 km N of Cruz Bay, U.S. Virgin Islands 00:57 UTC
3.9 152 km N of Cruz Bay, U.S. Virgin Islands 03:55 UTC
4.0 152 km N of Cruz Bay, U.S. Virgin Islands 23:51 UTC
4.0 154 km NNE of Cruz Bay, U.S. Virgin Islands 06:40 UTC
3.7 154 km NNE of Cruz Bay, U.S. Virgin Islands 06:28 UTC
3.8 134 km NNE of Cruz Bay, U.S. Virgin Islands 09:44 UTC
3.6 165 km NNE of Cruz Bay, U.S. Virgin Islands 08:24 UTC
3.9 163 km NNE of Cruz Bay, U.S. Virgin Islands 08:09 UTC
3.7 168 km NNE of Cruz Bay, U.S. Virgin Islands 21:44 UTC
3.6 153 km NNE of Cruz Bay, U.S. Virgin Islands 20:43 UTC
3.9 149 km N of Cruz Bay, U.S. Virgin Islands 12:59 UTC
4.0 144 km N of Cruz Bay, U.S. Virgin Islands 07:17 UTC
3.8 150 km N of Cruz Bay, U.S. Virgin Islands 13:36 UTC
3.9 141 km N of Cruz Bay, U.S. Virgin Islands 12:25 UTC
4.0 159 km N of Cruz Bay, U.S. Virgin Islands 02:26 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 16:29 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.