QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

33 km SE of Culebra, Puerto Rico

· 17 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vieques Municipio 36 kmCulebra Municipio 36 kmCeiba Municipio 59 kmFajardo Municipio 63 kmNaguabo Municipio 69 kmLuquillo Municipio 73 kmHumacao Municipio 73 kmYabucoa Municipio 80 kmRío Grande Municipio 81 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
17 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 36 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3586 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 950 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 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 18.0675, -65.0990. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vieques Municipio, PR 36 km (22 mi) E of here earthquakes near Vieques Municipio
Culebra Municipio, PR 36 km (23 mi) SE of here earthquakes near Culebra Municipio
Ceiba Municipio, PR 59 km (37 mi) ESE of here earthquakes near Ceiba Municipio
Fajardo Municipio, PR 63 km (39 mi) SE of here earthquakes near Fajardo Municipio
Naguabo Municipio, PR 69 km (43 mi) ESE of here earthquakes near Naguabo Municipio
Luquillo Municipio, PR 73 km (45 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

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

  1. 2.0 16 km WNW of Charlotte Amalie, U.S. Virgin Islands
  2. 2.0 23 km SW of Charlotte Amalie, U.S. Virgin Islands
  3. 3.3 20 km S of Charlotte Amalie, U.S. Virgin Islands
  4. 1.7 14 km SSE of Esperanza, Puerto Rico
  5. 2.8 23 km S of Charlotte Amalie, U.S. Virgin Islands
  6. 2.6 20 km WNW of Charlotte Amalie, U.S. Virgin Islands
  7. 2.5 7 km SW of Culebra, Puerto Rico
  8. 2.0 13 km N of Charlotte Amalie, U.S. Virgin Islands
  9. 2.2 8 km NW of Culebra, Puerto Rico
  10. 1.6 22 km S of Charlotte Amalie, U.S. Virgin Islands
  11. 2.5 14 km SE of Esperanza, Puerto Rico
  12. 2.4 21 km S of Esperanza, Puerto Rico
  13. 2.0 35 km SE of Culebra, Puerto Rico
  14. 2.4 22 km SSE of Esperanza, Puerto Rico
  15. 2.2 11 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.