QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

43 km ENE of Saint Croix, U.S. Virgin Islands

· 18 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 113 kmVieques Municipio 117 km
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
Magnitude
M 2.5 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 113 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2466 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 72,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.5× the energy of this one
  4. This earthquake M 2.5 about 150 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 17.8486, -64.3611. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 113 km (70 mi) ESE of here earthquakes near Culebra Municipio
Vieques Municipio, PR 117 km (73 mi) ESE of here earthquakes near Vieques Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 3.1 22 km NNE of Christiansted, U.S. Virgin Islands
  2. 3.2 20 km NNW of Christiansted, U.S. Virgin Islands
  3. 3.3 34 km NNE of Christiansted, U.S. Virgin Islands
  4. 3.7 45 km E of Cruz Bay, U.S. Virgin Islands
  5. 3.4 59 km NE of Christiansted, U.S. Virgin Islands
  6. 3.4 74 km ESE of Cruz Bay, U.S. Virgin Islands
  7. 3.3 29 km SE of Cruz Bay, U.S. Virgin Islands
  8. 2.9 29 km S of Cruz Bay, U.S. Virgin Islands
  9. 3.9 77 km ENE of Christiansted, U.S. Virgin Islands
  10. 3.3 66 km E of Cruz Bay, U.S. Virgin Islands
  11. 3.9 80 km ENE of Christiansted, U.S. Virgin Islands
  12. 3.8 40 km SE of Christiansted, U.S. Virgin Islands
  13. 3.6 33 km ESE of Cruz Bay, U.S. Virgin Islands
  14. 3.0 26 km SSE of Cruz Bay, U.S. Virgin Islands
  15. 3.7 56 km ESE of Cruz Bay, U.S. Virgin Islands

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . 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 4.1 on 2017-10-03 — it released about 290 times the energy of this one.

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

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.