110 km NE of Cruz Bay, U.S. Virgin Islands

2017-07-12 05:50 UTC · 44 km deep · released about 210 lb of TNT

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: 2017-07-12 05:50 UTC
Magnitude: M 2.6 (md)
Depth: 44 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 3364 days ago · we first saw it 3364 days ago

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

How big was it?

This earthquake released about 210 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 72,000× the energy of this one
Magna, Utah 2020 M 5.7 51,000× the energy of this one
Around the size people start to feel M 3.0 4.6× the energy of this one
This earthquake M 2.6 about 210 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.

Where

Map loads when it scrolls into view

Epicentre 18.9858, -64.0013. Map © OpenStreetMap contributors.

Aftershocks so far

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

3.3 88 km NNE of Cruz Bay, U.S. Virgin Islands 20:57 UTC
2.8 100 km NNE of Cruz Bay, U.S. Virgin Islands 07:53 UTC
2.5 75 km NE of Cruz Bay, U.S. Virgin Islands 03:07 UTC
2.5 111 km NE of Cruz Bay, U.S. Virgin Islands 22:06 UTC
2.1 105 km NNE of Cruz Bay, U.S. Virgin Islands 13:46 UTC
2.3 89 km NNE of Cruz Bay, U.S. Virgin Islands 13:44 UTC
2.2 88 km NNE of Cruz Bay, U.S. Virgin Islands 08:05 UTC
2.3 94 km NNE of Cruz Bay, U.S. Virgin Islands 07:39 UTC
2.0 113 km NNE of Cruz Bay, U.S. Virgin Islands 07:20 UTC
2.1 74 km NNE of Cruz Bay, U.S. Virgin Islands 06:21 UTC
3.1 68 km NNE of Cruz Bay, U.S. Virgin Islands 21:49 UTC
2.3 71 km NE of Cruz Bay, U.S. Virgin Islands 06:50 UTC
3.3 90 km NE of Cruz Bay, U.S. Virgin Islands 14:55 UTC
2.1 76 km NE of Cruz Bay, U.S. Virgin Islands 13:55 UTC
2.1 98 km NE of Cruz Bay, U.S. Virgin Islands 10:47 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:55 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.