QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9Md

6 km NE of Vieques, Puerto Rico

· 110 km deep · released about 680 lb of TNT

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10 km30 km60 km120 km N Río Grande Municipio 10 kmLuquillo Municipio 14 kmLoíza Municipio 17 kmCanóvanas Municipio 18 kmCarolina Municipio 21 kmFajardo Municipio 23 kmTrujillo Alto Municipio 27 kmNaguabo Municipio 29 kmCeiba Municipio 29 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 2.9 (Md)
Depth
110 km below the surface
Felt
no reports yet
Nearest
Río Grande Municipio, 10 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3504 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 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 18.4664, -65.7870. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Río Grande Municipio, PR 10 km (6 mi) N of here earthquakes near Río Grande Municipio
Luquillo Municipio, PR 14 km (8 mi) NW of here earthquakes near Luquillo Municipio
Loíza Municipio, PR 17 km (10 mi) E of here earthquakes near Loíza Municipio
Canóvanas Municipio, PR 18 km (11 mi) NE of here earthquakes near Canóvanas Municipio
Carolina Municipio, PR 21 km (13 mi) ENE of here earthquakes near Carolina Municipio
Fajardo Municipio, PR 23 km (14 mi) WNW of here earthquakes near Fajardo Municipio

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

Aftershocks so far

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

  1. 2.9 35 km N of San Juan, Puerto Rico
  2. 2.6 1 km NW of Bayamón, Puerto Rico
  3. 2.5 28 km NNE of Luquillo, Puerto Rico
  4. 3.0 6 km NNE of Levittown, Puerto Rico
  5. 2.9 Puerto Rico region
  6. 3.0 50 km NNE of Luquillo, Puerto Rico
  7. 3.2 53 km NNE of Vieques, Puerto Rico
  8. 2.5 0 km SW of Aguas Claras, Puerto Rico
  9. 2.6 46 km NNE of San Juan, Puerto Rico
  10. 1.6 3 km SE of Punta Santiago, Puerto Rico
  11. 2.5 20 km NNE of San Juan, Puerto Rico
  12. 3.6 20 km NNW of Loíza, Puerto Rico
  13. 2.1 46 km NNE of Suárez, Puerto Rico
  14. 2.8 53 km N of Suárez, Puerto Rico
  15. 1.5 2 km WSW of Las Piedras, 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

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