QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

3 km SE of Pájaros, Puerto Rico

· 114 km deep · released about 360 lb of TNT

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10 km30 km60 km120 km N Bayamón Municipio 3 kmToa Alta Municipio 6 kmNaranjito Municipio 8 kmGuaynabo Municipio 9 kmAguas Buenas Municipio 12 kmCataño Municipio 12 kmToa Baja Municipio 13 kmComerío Municipio 13 kmCorozal Municipio 14 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
114 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 3 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3343 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 360 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 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 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 18.3410, -66.1946. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 3 km (2 mi) WSW of here earthquakes near Bayamón Municipio
Toa Alta Municipio, PR 6 km (4 mi) ESE of here earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 8 km (5 mi) NE of here earthquakes near Naranjito Municipio
Guaynabo Municipio, PR 9 km (5 mi) W of here earthquakes near Guaynabo Municipio
Aguas Buenas Municipio, PR 12 km (7 mi) NW of here earthquakes near Aguas Buenas Municipio
Cataño Municipio, PR 12 km (8 mi) SSW of here earthquakes near Cataño 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. 2.3 1 km S of Río Lajas, Puerto Rico
  2. 2.6 21 km NNE of Dorado, Puerto Rico
  3. 3.1 5 km ESE of Cataño, Puerto Rico
  4. 2.9 3 km N of Trujillo Alto, Puerto Rico
  5. 2.7 20 km N of Brenas, Puerto Rico
  6. 2.9 7 km NNW of Martorell, Puerto Rico
  7. 1.6 6 km WNW of Palomas, Puerto Rico
  8. 1.9 2 km NW of Aibonito, Puerto Rico
  9. 2.5 3 km E of La Plena, Puerto Rico
  10. 2.0 0 km SE of Comunas, Puerto Rico
  11. 2.3 0 km N of Pastos, Puerto Rico
  12. 2.6 27 km NNW of Loíza, Puerto Rico
  13. 3.1 1 km SW of San Antonio, Puerto Rico
  14. 2.7 2 km WSW of Río Lajas, Puerto Rico
  15. 2.3 5 km NNW of Brenas, 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.