QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

2 km SW of H. Rivera Colon, Puerto Rico

· 118 km deep · released about 310 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 5 kmNaranjito Municipio 6 kmToa Alta Municipio 6 kmVega Alta Municipio 13 kmBayamón Municipio 13 kmMorovis Municipio 14 kmComerío Municipio 14 kmBarranquitas Municipio 15 kmDorado Municipio 16 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
118 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2807 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 310 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 50,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 35,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.1× the energy of this one
  4. This earthquake M 2.7 about 310 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 18.3316, -66.2921. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 5 km (3 mi) NE of here earthquakes near Corozal Municipio
Naranjito Municipio, PR 6 km (4 mi) NW of here earthquakes near Naranjito Municipio
Toa Alta Municipio, PR 6 km (4 mi) SW of here earthquakes near Toa Alta Municipio
Vega Alta Municipio, PR 13 km (8 mi) SSE of here earthquakes near Vega Alta Municipio
Bayamón Municipio, PR 13 km (8 mi) W of here earthquakes near Bayamón Municipio
Morovis Municipio, PR 14 km (8 mi) E of here earthquakes near Morovis Municipio

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

Aftershocks so far

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

  1. 2.9 3 km N of Naranjito, Puerto Rico
  2. 1.6 1 km ESE of Los Llanos, Puerto Rico
  3. 1.9 1 km W of Jauca, Puerto Rico
  4. 1.6 1 km NNW of Jayuya, Puerto Rico
  5. 1.9 4 km N of Palmarejo, Puerto Rico
  6. 1.9 1 km ENE of El Ojo, Puerto Rico
  7. 2.2 26 km N of Dorado, Puerto Rico
  8. 2.5 31 km N of Brenas, Puerto Rico
  9. 2.0 0 km SSE of Playita Cortada, Puerto Rico
  10. 2.3 4 km NW of Palomas, Puerto Rico
  11. 2.3 Puerto Rico region
  12. 2.3 6 km NE of Villalba, Puerto Rico
  13. 1.9 24 km NNE of Tierras Nuevas Poniente, Puerto Rico
  14. 2.6 8 km NNW of Tierras Nuevas Poniente, Puerto Rico
  15. 2.5 1 km ESE of Salinas, 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.