136 km N of Charlotte Amalie, U.S. Virgin Islands

Yes. A magnitude 2.3 earthquake was recorded 136 km N of Charlotte Amalie, U.S. Virgin Islands, at 10:11 pm AST on 26 June 2017 (02:11 UTC), 34 km deep.

2017-06-27 02:11 UTC · 34 km deep · released about 77 lb 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: 2017-06-27 02:11 UTC
Magnitude: M 2.3 (md)
Depth: 34 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 3422 days ago · we first saw it 3422 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. 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 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
Magna, Utah 2020 M 5.7 140,000× the energy of this one
Around the size people start to feel M 3.0 12× the energy of this one
This earthquake M 2.3 about 77 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 4.6 on 2016-01-15 — about 3,100 times the energy of this one.

Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:

6.2 131 km NNE of Cruz Bay, U.S. Virgin Islands · 39 km ESE of this epicentre Sep 6, 1919
6.1 91 km N of Charlotte Amalie, U.S. Virgin Islands · 46 km S of this epicentre Oct 11, 2008
6.0 112 km N of Charlotte Amalie, U.S. Virgin Islands · 26 km SSW of this epicentre Oct 17, 2001
5.6 112 km N of Charlotte Amalie, U.S. Virgin Islands · 25 km S of this epicentre Oct 16, 2001
5.3 97 km N of Cruz Bay, U.S. Virgin Islands · 48 km SSE of this epicentre Dec 19, 2007

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

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

3.5 108 km N of Cruz Bay, U.S. Virgin Islands 03:31 UTC
3.4 127 km N of Charlotte Amalie, U.S. Virgin Islands 21:05 UTC
2.5 93 km N of Charlotte Amalie, U.S. Virgin Islands 13:53 UTC
3.2 108 km N of Cruz Bay, U.S. Virgin Islands 13:44 UTC
2.7 107 km N of Cruz Bay, U.S. Virgin Islands 09:35 UTC
2.3 98 km N of Cruz Bay, U.S. Virgin Islands 09:09 UTC
2.1 94 km N of Charlotte Amalie, U.S. Virgin Islands 14:56 UTC
2.5 91 km N of Cruz Bay, U.S. Virgin Islands 09:40 UTC
2.7 142 km NNE of Cruz Bay, U.S. Virgin Islands 07:02 UTC
3.9 138 km NNE of Cruz Bay, U.S. Virgin Islands 02:13 UTC
3.0 99 km N of Cruz Bay, U.S. Virgin Islands 03:40 UTC
2.0 91 km N of Charlotte Amalie, U.S. Virgin Islands 17:40 UTC
2.4 99 km N of Cruz Bay, U.S. Virgin Islands 07:40 UTC
2.5 93 km N of Cruz Bay, U.S. Virgin Islands 03:14 UTC
2.0 114 km N of Charlotte Amalie, U.S. Virgin Islands 01:48 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 23:23 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.