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

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 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
3. Around the size people start to feel M 3.0 3× the energy of this one
4. This earthquake M 2.7 about 320 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

Epicentre 18.8871, -64.0900. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 2.2 77 km NNE of Cruz Bay, U.S. Virgin Islands 17:36 UTC
2. 2.4 68 km NE of Cruz Bay, U.S. Virgin Islands 23:45 UTC
3. 2.7 104 km NE of Cruz Bay, U.S. Virgin Islands 04:14 UTC
4. 2.4 111 km NE of Cruz Bay, U.S. Virgin Islands 03:06 UTC
5. 2.4 103 km NNE of Cruz Bay, U.S. Virgin Islands 02:14 UTC
6. 3.4 114 km NE of Cruz Bay, U.S. Virgin Islands 20:14 UTC
7. 2.5 110 km NE of Cruz Bay, U.S. Virgin Islands 18:26 UTC
8. 2.3 106 km NE of Cruz Bay, U.S. Virgin Islands 14:10 UTC
9. 2.2 80 km NE of Cruz Bay, U.S. Virgin Islands 02:36 UTC
10. 2.2 110 km NNE of Cruz Bay, U.S. Virgin Islands 02:17 UTC
11. 2.6 105 km NNE of Cruz Bay, U.S. Virgin Islands 02:16 UTC
12. 2.5 108 km NE of Cruz Bay, U.S. Virgin Islands 00:24 UTC
13. 2.9 109 km NE of Cruz Bay, U.S. Virgin Islands 00:17 UTC
14. 2.2 120 km NE of Cruz Bay, U.S. Virgin Islands 00:13 UTC
15. 3.5 134 km NE of Cruz Bay, U.S. Virgin Islands 00:10 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 13:49 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.