QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

88 km NNW of Charlotte Amalie, U.S. Virgin Islands

· 31 km deep · released about 1,000 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 88 kmFajardo Municipio 92 kmLuquillo Municipio 100 kmRío Grande Municipio 105 kmCeiba Municipio 106 kmLoíza Municipio 110 kmVieques Municipio 113 kmCanóvanas Municipio 115 kmCarolina Municipio 116 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
31 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 88 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2451 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 1,000 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 6.7 330,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× 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 1,000 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 19.1056, -65.1661. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 88 km (55 mi) N of here earthquakes near Culebra Municipio
Fajardo Municipio, PR 92 km (57 mi) NNE of here earthquakes near Fajardo Municipio
Luquillo Municipio, PR 100 km (62 mi) NE of here earthquakes near Luquillo Municipio
Río Grande Municipio, PR 105 km (65 mi) NE of here earthquakes near Río Grande Municipio
Ceiba Municipio, PR 106 km (66 mi) NNE of here earthquakes near Ceiba Municipio
Loíza Municipio, PR 110 km (68 mi) NE of here earthquakes near Loíza Municipio

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

Aftershocks so far

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

  1. 2.8 51 km N of Charlotte Amalie, U.S. Virgin Islands
  2. 3.3 66 km NNW of Charlotte Amalie, U.S. Virgin Islands
  3. 3.2 105 km N of Charlotte Amalie, U.S. Virgin Islands
  4. 3.3 74 km NNE of Vieques, Puerto Rico
  5. 3.2 104 km N of Cruz Bay, U.S. Virgin Islands
  6. 3.4 74 km N of Charlotte Amalie, U.S. Virgin Islands
  7. 2.6 61 km NNE of Luquillo, Puerto Rico
  8. 3.6 Virgin Islands
  9. 3.7 113 km N of Charlotte Amalie, U.S. Virgin Islands
  10. 2.9 55 km NNE of Luquillo, Puerto Rico
  11. 4.4 89 km N of Culebra, Puerto Rico
  12. 3.1 123 km N of Culebra, Puerto Rico
  13. 3.0 57 km N of Culebra, Puerto Rico
  14. 2.9 49 km N of Culebra, Puerto Rico
  15. 3.0 59 km NNW of Charlotte Amalie, 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 4.5 on 2018-02-09 — it released about 170 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.