QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

24 km NNE of Vieques, Puerto Rico

· 44 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 28 kmRío Grande Municipio 29 kmLuquillo Municipio 30 kmFajardo Municipio 33 kmCarolina Municipio 34 kmCanóvanas Municipio 36 kmSan Juan Municipio 39 kmTrujillo Alto Municipio 41 kmCeiba Municipio 45 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 2.7 (md)
Depth
44 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 28 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2963 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 18.6333, -65.7690. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 28 km (17 mi) NE of here earthquakes near Loíza Municipio
Río Grande Municipio, PR 29 km (18 mi) N of here earthquakes near Río Grande Municipio
Luquillo Municipio, PR 30 km (19 mi) NNW of here earthquakes near Luquillo Municipio
Fajardo Municipio, PR 33 km (21 mi) NW of here earthquakes near Fajardo Municipio
Carolina Municipio, PR 34 km (21 mi) NE of here earthquakes near Carolina Municipio
Canóvanas Municipio, PR 36 km (22 mi) NNE of here earthquakes near Canóvanas Municipio

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

Aftershocks so far

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

  1. 1.9 2 km N of Carolina, Puerto Rico
  2. 2.6 60 km N of San Juan, Puerto Rico
  3. 1.7 33 km N of San Juan, Puerto Rico
  4. 2.1 6 km NNW of Loíza, Puerto Rico
  5. 2.8 37 km N of San Juan, Puerto Rico
  6. 2.2 Puerto Rico region
  7. 2.6 3 km NNW of Benitez, Puerto Rico
  8. 1.8 31 km N of Loíza, Puerto Rico
  9. 2.8 23 km NNE of Luquillo, Puerto Rico
  10. 2.9 28 km NNE of Luquillo, Puerto Rico
  11. 2.6 17 km NNE of Vieques, Puerto Rico
  12. 3.1 4 km NNE of Bairoa, Puerto Rico
  13. 2.4 26 km N of San Juan, Puerto Rico
  14. 2.4 46 km NNE of Luquillo, Puerto Rico
  15. 2.4 4 km NNE of Guaynabo, 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.