QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3 km ENE of Bayamón, Puerto Rico

· 118 km deep · released about 82 lb of TNT

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10 km30 km60 km120 km N Cataño Municipio 4 kmSan Juan Municipio 6 kmGuaynabo Municipio 7 kmBayamón Municipio 8 kmToa Baja Municipio 9 kmToa Alta Municipio 13 kmTrujillo Alto Municipio 15 kmDorado Municipio 16 kmCarolina Municipio 17 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 2.3 (md)
Depth
118 km below the surface
Felt
no reports yet
Nearest
Cataño Municipio, 4 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2990 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 18.4100, -66.1270. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cataño Municipio, PR 4 km (3 mi) SSE of here earthquakes near Cataño Municipio
San Juan Municipio, PR 6 km (4 mi) WSW of here earthquakes near San Juan Municipio
Guaynabo Municipio, PR 7 km (5 mi) N of here earthquakes near Guaynabo Municipio
Bayamón Municipio, PR 8 km (5 mi) NNE of here earthquakes near Bayamón Municipio
Toa Baja Municipio, PR 9 km (5 mi) SE of here earthquakes near Toa Baja Municipio
Toa Alta Municipio, PR 13 km (8 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

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

  1. 2.8 40 km N of Dorado, Puerto Rico
  2. 2.4 8 km NNE of Dorado, Puerto Rico
  3. 2.4 4 km NNE of Guaynabo, Puerto Rico
  4. 1.9 1 km N of Las Ochenta, Puerto Rico
  5. 2.2 5 km ESE of G. L. Garcia, Puerto Rico
  6. 2.7 5 km ESE of San Juan, Puerto Rico
  7. 2.1 3 km ESE of Cayey, Puerto Rico
  8. 2.3 17 km NNE of Brenas, Puerto Rico
  9. 2.7 6 km NW of Sabana, Puerto Rico
  10. 2.4 2 km SSE of Cidra, Puerto Rico
  11. 2.5 3 km WSW of Sumidero, Puerto Rico
  12. 1.5 3 km W of Palo Seco, Puerto Rico
  13. 2.5 8 km NNE of Brenas, Puerto Rico
  14. 2.7 Puerto Rico region
  15. 2.4 18 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.