QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3Md

16 km SSW of Charlotte Amalie, U.S. Virgin Islands

· 120 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 36 kmVieques Municipio 47 kmFajardo Municipio 66 kmCeiba Municipio 67 kmLuquillo Municipio 78 kmNaguabo Municipio 79 kmHumacao Municipio 84 kmRío Grande Municipio 87 kmLas Piedras Municipio 93 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 3.3 (Md)
Depth
120 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 36 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3390 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 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× 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 18.2070, -64.9915. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 36 km (22 mi) ESE of here earthquakes near Culebra Municipio
Vieques Municipio, PR 47 km (29 mi) E of here earthquakes near Vieques Municipio
Fajardo Municipio, PR 66 km (41 mi) ESE of here earthquakes near Fajardo Municipio
Ceiba Municipio, PR 67 km (41 mi) E of here earthquakes near Ceiba Municipio
Luquillo Municipio, PR 78 km (48 mi) ESE of here earthquakes near Luquillo Municipio
Naguabo Municipio, PR 79 km (49 mi) E of here earthquakes near Naguabo Municipio

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

Aftershocks so far

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

  1. 3.0 31 km SSE of Cruz Bay, U.S. Virgin Islands
  2. 1.6 17 km S of Charlotte Amalie, U.S. Virgin Islands
  3. 2.4 25 km N of Cruz Bay, U.S. Virgin Islands
  4. 1.9 32 km NNW of Charlotte Amalie, U.S. Virgin Islands
  5. 2.4 30 km NNW of Charlotte Amalie, U.S. Virgin Islands
  6. 2.5 22 km ENE of Cruz Bay, U.S. Virgin Islands
  7. 1.7 11 km SE of Esperanza, Puerto Rico
  8. 1.8 24 km NNE of Charlotte Amalie, U.S. Virgin Islands
  9. 2.3 Puerto Rico region
  10. 1.7 7 km ESE of Esperanza, Puerto Rico
  11. 2.4 29 km NW of Saint Croix, U.S. Virgin Islands
  12. 2.0 21 km N of Charlotte Amalie, U.S. Virgin Islands
  13. 1.8 17 km S of Charlotte Amalie, U.S. Virgin Islands
  14. 3.2 26 km SE of Esperanza, Puerto Rico
  15. 2.2 15 km SE of Esperanza, Puerto Rico

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.

On USGS

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