QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

6 km SSW of Corozal, Puerto Rico

· 35 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Corozal Municipio 3 kmMorovis Municipio 9 kmNaranjito Municipio 10 kmBarranquitas Municipio 11 kmOrocovis Municipio 12 kmToa Alta Municipio 13 kmComerío Municipio 15 kmVega Alta Municipio 16 kmCiales Municipio 18 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
35 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 3 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3239 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 18.2888, -66.3445. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 3 km (2 mi) SW of here earthquakes near Corozal Municipio
Morovis Municipio, PR 9 km (5 mi) ESE of here earthquakes near Morovis Municipio
Naranjito Municipio, PR 10 km (6 mi) W of here earthquakes near Naranjito Municipio
Barranquitas Municipio, PR 11 km (7 mi) NNW of here earthquakes near Barranquitas Municipio
Orocovis Municipio, PR 12 km (8 mi) NE of here earthquakes near Orocovis Municipio
Toa Alta Municipio, PR 13 km (8 mi) SW of here earthquakes near Toa Alta Municipio

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

Aftershocks so far

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

  1. 2.3 2 km NNW of Potala Pastillo, Puerto Rico
  2. 3.0 4 km SSE of Cayey, Puerto Rico
  3. 1.9 3 km NNW of Potala Pastillo, Puerto Rico
  4. 1.6 1 km E of Capitanejo, Puerto Rico
  5. 2.7 11 km S of Jauca, Puerto Rico
  6. 2.4 1 km SSW of Potala Pastillo, Puerto Rico
  7. 2.2 6 km SSE of Jauca, Puerto Rico
  8. 2.9 7 km S of Jauca, Puerto Rico
  9. 3.1 12 km S of Santa Isabel, Puerto Rico
  10. 3.1 Puerto Rico region
  11. 3.3 12 km NNE of Tierras Nuevas Poniente, Puerto Rico
  12. 2.5 5 km E of Bayamon, Puerto Rico
  13. 3.1 1 km SW of Trujillo Alto, Puerto Rico
  14. 2.4 3 km SW of Santa Isabel, Puerto Rico
  15. 2.5 2 km ESE of Mariano Colón, 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.