QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

1 km SE of Bayamón, Puerto Rico

· 63 km deep · released about 10 lb of TNT

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10 km30 km60 km120 km N Bayamón Municipio 5 kmCataño Municipio 6 kmGuaynabo Municipio 6 kmSan Juan Municipio 9 kmToa Baja Municipio 9 kmToa Alta Municipio 11 kmAguas Buenas Municipio 15 kmDorado Municipio 15 kmNaranjito 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
63 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 5 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3017 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 10 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 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 18.3918, -66.1458. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 5 km (3 mi) NNE of here earthquakes near Bayamón Municipio
Cataño Municipio, PR 6 km (4 mi) S of here earthquakes near Cataño Municipio
Guaynabo Municipio, PR 6 km (4 mi) NNW of here earthquakes near Guaynabo Municipio
San Juan Municipio, PR 9 km (5 mi) WSW of here earthquakes near San Juan Municipio
Toa Baja Municipio, PR 9 km (5 mi) SE of here earthquakes near Toa Baja Municipio
Toa Alta Municipio, PR 11 km (7 mi) ENE 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

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

  1. 2.7 Puerto Rico region
  2. 2.4 18 km NNW of Brenas, Puerto Rico
  3. 2.3 28 km N of Loíza, Puerto Rico
  4. 2.3 36 km N of Dorado, Puerto Rico
  5. 2.1 0 km NE of Ciales, Puerto Rico
  6. 2.2 2 km ESE of Parcelas Nuevas, Puerto Rico
  7. 2.3 1 km WSW of Campo Rico, Puerto Rico
  8. 2.8 4 km NNW of Sabana, Puerto Rico
  9. 2.8 1 km NW of Naranjito, Puerto Rico
  10. 2.5 2 km ESE of Vega Alta, Puerto Rico
  11. 1.7 8 km S of Villalba, Puerto Rico
  12. 2.7 4 km ESE of Florida, Puerto Rico
  13. 2.7 24 km NNE of Vieques, Puerto Rico
  14. 3.0 4 km ESE of Bayamon, Puerto Rico
  15. 2.6 3 km SSE of Guaynabo, 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.