QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

41 km N of Suárez, Puerto Rico

· 20 km deep · released about 380 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 41 kmRío Grande Municipio 47 kmCarolina Municipio 47 kmSan Juan Municipio 49 kmLuquillo Municipio 50 kmCataño Municipio 52 kmFajardo Municipio 53 kmCanóvanas Municipio 53 kmToa Baja Municipio 54 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
20 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Loíza Municipio, 41 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1503 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 380 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 40,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 29,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 380 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 18.8020, -65.8267. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 41 km (26 mi) NNE of here earthquakes near Loíza Municipio
Río Grande Municipio, PR 47 km (29 mi) N of here earthquakes near Río Grande Municipio
Carolina Municipio, PR 47 km (30 mi) NNE of here earthquakes near Carolina Municipio
San Juan Municipio, PR 49 km (31 mi) NNE of here earthquakes near San Juan Municipio
Luquillo Municipio, PR 50 km (31 mi) NNW of here earthquakes near Luquillo Municipio
Cataño Municipio, PR 52 km (32 mi) NE of here earthquakes near Cataño Municipio

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

Aftershocks so far

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

  1. 3.9 88 km N of Suárez, Puerto Rico
  2. 3.4 53 km NNE of Luquillo, Puerto Rico
  3. 3.4 57 km NNE of Vieques, Puerto Rico
  4. 2.6 24 km NNE of Dorado, Puerto Rico
  5. 3.2 Puerto Rico region
  6. 3.4 Puerto Rico region
  7. 2.8 Puerto Rico region
  8. 2.8 27 km NNE of Luquillo, Puerto Rico
  9. 3.1 Puerto Rico region
  10. 2.9 3 km E of San Juan, Puerto Rico
  11. 3.7 82 km NNE of Suárez, Puerto Rico
  12. 3.1 10 km NW of San Juan, Puerto Rico
  13. 3.2 24 km N of San Juan, Puerto Rico
  14. 3.4 25 km NNE of Playa Fortuna, Puerto Rico
  15. 3.1 79 km NNE of Vieques, 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.