QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

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

· 7.7 km deep · released about 1,100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 40 kmVieques Municipio 41 kmCeiba Municipio 64 kmFajardo Municipio 67 kmNaguabo Municipio 74 kmLuquillo Municipio 78 kmHumacao Municipio 78 kmYabucoa Municipio 86 kmRío Grande Municipio 86 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 3.0 (md)
Depth
7.7 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Culebra Municipio, 40 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1234 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 320,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 18.0632, -65.0488. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 40 km (25 mi) SE of here earthquakes near Culebra Municipio
Vieques Municipio, PR 41 km (26 mi) E of here earthquakes near Vieques Municipio
Ceiba Municipio, PR 64 km (40 mi) ESE of here earthquakes near Ceiba Municipio
Fajardo Municipio, PR 67 km (42 mi) ESE of here earthquakes near Fajardo Municipio
Naguabo Municipio, PR 74 km (46 mi) ESE of here earthquakes near Naguabo Municipio
Luquillo Municipio, PR 78 km (48 mi) ESE of here earthquakes near Luquillo Municipio

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

Aftershocks so far

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

  1. 3.1 18 km S of Cruz Bay, U.S. Virgin Islands
  2. 3.2 24 km SSE of Cruz Bay, U.S. Virgin Islands
  3. 2.5 2 km SE of Esperanza, Puerto Rico
  4. 3.0 7 km SE of Esperanza, Puerto Rico
  5. 2.5 10 km SE of Esperanza, Puerto Rico
  6. 2.7 33 km SSE of Esperanza, Puerto Rico
  7. 3.3 22 km SSW of Charlotte Amalie, U.S. Virgin Islands
  8. 3.1 16 km SW of Charlotte Amalie, U.S. Virgin Islands
  9. 3.0 6 km E of Esperanza, Puerto Rico
  10. 3.1 22 km NNE of Christiansted, U.S. Virgin Islands
  11. 3.2 31 km NW of Saint Croix, U.S. Virgin Islands
  12. 3.4 14 km SE of Esperanza, Puerto Rico
  13. 3.2 17 km SE of Esperanza, Puerto Rico
  14. 2.9 14 km SE of Esperanza, Puerto Rico
  15. 3.2 19 km SSE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2021-10-08 — it released about 450 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.