144 km N of Cruz Bay, U.S. Virgin Islands

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

How big was it?

This earthquake released about 15 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 11,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 500× the energy of this one
3. Magna, Utah 2020 M 5.7 350× the energy of this one
4. This earthquake M 4.0 about 15 tons of TNT
5. Around the size people start to feel M 3.0 this one released 32× 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.

Where

Epicentre 19.6256, -64.5870. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 3.8 107 km N of Cruz Bay, U.S. Virgin Islands 18:52 UTC
2. 3.8 152 km N of Cruz Bay, U.S. Virgin Islands 17:58 UTC
3. 3.4 143 km NNE of Cruz Bay, U.S. Virgin Islands 22:57 UTC
4. 3.8 101 km N of Cruz Bay, U.S. Virgin Islands 04:19 UTC
5. 3.4 104 km N of Charlotte Amalie, U.S. Virgin Islands 02:15 UTC
6. 3.4 106 km N of Charlotte Amalie, U.S. Virgin Islands 21:00 UTC
7. 3.1 102 km N of Charlotte Amalie, U.S. Virgin Islands 18:21 UTC
8. 3.7 103 km N of Cruz Bay, U.S. Virgin Islands 17:04 UTC
9. 3.7 101 km N of Charlotte Amalie, U.S. Virgin Islands 03:53 UTC
10. 3.8 106 km N of Charlotte Amalie, U.S. Virgin Islands 01:24 UTC
11. 3.9 103 km N of Charlotte Amalie, U.S. Virgin Islands 23:38 UTC
12. 3.8 114 km N of Charlotte Amalie, U.S. Virgin Islands 23:06 UTC
13. 3.8 120 km N of Charlotte Amalie, U.S. Virgin Islands 20:33 UTC
14. 3.4 108 km N of Charlotte Amalie, U.S. Virgin Islands 20:22 UTC
15. 3.2 107 km N of Cruz Bay, U.S. Virgin Islands 19:39 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:59 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

For this area

The largest earthquake within 50 km in our catalogue was M 5.0 on 2019-10-06 — it released about 28 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

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.