QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7Md

20 km NE of Saint Croix, U.S. Virgin Islands

· 18 km deep · released about 11 lb of TNT

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10 km30 km60 km120 km N Culebra Municipio 88 kmVieques Municipio 90 kmCeiba Municipio 113 kmFajardo 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 1.7 (Md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 88 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3655 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 17.8694, -64.6276. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 88 km (55 mi) SE of here earthquakes near Culebra Municipio
Vieques Municipio, PR 90 km (56 mi) ESE of here earthquakes near Vieques Municipio
Ceiba Municipio, PR 113 km (70 mi) ESE of here earthquakes near Ceiba Municipio
Fajardo Municipio, PR 117 km (73 mi) ESE of here earthquakes near Fajardo Municipio
Naguabo Municipio, PR 123 km (77 mi) ESE of here earthquakes near Naguabo Municipio
Luquillo Municipio, PR 127 km (79 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

35 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 29 km NW of Saint Croix, U.S. Virgin Islands
  4. 1.8 17 km S of Charlotte Amalie, U.S. Virgin Islands
  5. 1.8 32 km S of Charlotte Amalie, U.S. Virgin Islands
  6. 2.6 36 km S of Charlotte Amalie, U.S. Virgin Islands
  7. 1.8 19 km S of Charlotte Amalie, U.S. Virgin Islands
  8. 3.3 35 km ESE of Cruz Bay, U.S. Virgin Islands
  9. 2.6 21 km SSE of Charlotte Amalie, U.S. Virgin Islands
  10. 1.9 37 km NW of Saint Croix, U.S. Virgin Islands
  11. 2.3 29 km SSW of Charlotte Amalie, U.S. Virgin Islands
  12. 3.2 22 km S of Charlotte Amalie, U.S. Virgin Islands
  13. 2.0 20 km S of Charlotte Amalie, U.S. Virgin Islands
  14. 2.1 35 km NNW of Saint Croix, U.S. Virgin Islands
  15. 3.0 29 km SSW 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.

On USGS

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