QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

7 km SE of Pájaros, Puerto Rico

· 54 km deep · released about 11 lb of TNT

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10 km30 km60 km120 km N Bayamón Municipio 4 kmGuaynabo Municipio 7 kmAguas Buenas Municipio 8 kmNaranjito Municipio 9 kmToa Alta Municipio 9 kmComerío Municipio 11 kmCataño Municipio 15 kmToa Baja Municipio 16 kmCorozal 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 1.7 (md)
Depth
54 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 4 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2895 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 18.3161, -66.1768. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 4 km (2 mi) SSW of here earthquakes near Bayamón Municipio
Guaynabo Municipio, PR 7 km (5 mi) WSW of here earthquakes near Guaynabo Municipio
Aguas Buenas Municipio, PR 8 km (5 mi) NW of here earthquakes near Aguas Buenas Municipio
Naranjito Municipio, PR 9 km (5 mi) ENE of here earthquakes near Naranjito Municipio
Toa Alta Municipio, PR 9 km (6 mi) SE of here earthquakes near Toa Alta Municipio
Comerío Municipio, PR 11 km (7 mi) NNE of here earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 2.7 6 km NNW of Garrochales, Puerto Rico
  2. 2.5 9 km SSW of Arroyo, Puerto Rico
  3. 2.6 2 km ENE of Corozal, Puerto Rico
  4. 1.7 5 km E of Comerío, Puerto Rico
  5. 1.8 2 km SSE of Santa Isabel, Puerto Rico
  6. 1.7 Puerto Rico region
  7. 2.0 5 km S of Salinas, Puerto Rico
  8. 2.5 4 km SW of Patillas, Puerto Rico
  9. 1.9 2 km N of Carolina, Puerto Rico
  10. 2.0 7 km SE of Arroyo, Puerto Rico
  11. 2.1 4 km ESE of Palmarejo, Puerto Rico
  12. 2.0 Puerto Rico region
  13. 2.0 3 km SSW of Jauca, Puerto Rico
  14. 2.3 2 km SSW of Jauca, Puerto Rico
  15. 2.0 2 km SSW of Jauca, 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.