QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5Md

7 km SW of Culebra, Puerto Rico

· 102 km deep · released about 170 lb of TNT

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10 km30 km60 km120 km N Culebra Municipio 9 kmVieques Municipio 17 kmCeiba Municipio 29 kmFajardo Municipio 30 kmLuquillo Municipio 41 kmNaguabo Municipio 42 kmHumacao Municipio 48 kmRío Grande Municipio 50 kmLas Piedras Municipio 56 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 2.5 (Md)
Depth
102 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 9 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3575 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 18.2551, -65.3451. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 9 km (6 mi) SSW of here earthquakes near Culebra Municipio
Vieques Municipio, PR 17 km (11 mi) NNE of here earthquakes near Vieques Municipio
Ceiba Municipio, PR 29 km (18 mi) E of here earthquakes near Ceiba Municipio
Fajardo Municipio, PR 30 km (18 mi) ESE of here earthquakes near Fajardo Municipio
Luquillo Municipio, PR 41 km (25 mi) ESE of here earthquakes near Luquillo Municipio
Naguabo Municipio, PR 42 km (26 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

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

  1. 3.0 27 km NNW of Charlotte Amalie, U.S. Virgin Islands
  2. 2.2 19 km S of Esperanza, Puerto Rico
  3. 1.9 15 km NNW of Charlotte Amalie, U.S. Virgin Islands
  4. 2.7 13 km S of Culebra, Puerto Rico
  5. 2.7 24 km NNE of Luquillo, Puerto Rico
  6. 1.6 31 km SSW of Charlotte Amalie, U.S. Virgin Islands
  7. 2.3 32 km ESE of Esperanza, Puerto Rico
  8. 2.3 24 km ESE of Esperanza, Puerto Rico
  9. 2.8 21 km NNE of Luquillo, Puerto Rico
  10. 2.1 12 km E of El Negro, Puerto Rico
  11. 1.6 23 km NW of Charlotte Amalie, U.S. Virgin Islands
  12. 2.7 12 km SE of Esperanza, Puerto Rico
  13. 2.4 37 km NNW of Charlotte Amalie, U.S. Virgin Islands
  14. 2.3 12 km E of Culebra, Puerto Rico
  15. 2.0 8 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.