QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

4 km ESE of Pájaros, Puerto Rico

· 62 km deep · released about 150 lb of TNT

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10 km30 km60 km120 km N Bayamón Municipio 1 kmGuaynabo Municipio 6 kmToa Alta Municipio 8 kmCataño Municipio 10 kmNaranjito Municipio 11 kmToa Baja Municipio 11 kmAguas Buenas Municipio 12 kmSan Juan Municipio 13 kmComerío Municipio 15 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 2.5 (md)
Depth
62 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 1 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 180 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 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 72,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.5× the energy of this one
  4. This earthquake M 2.5 about 150 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 18.3565, -66.1722. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 1 km (1 mi) NNW of here earthquakes near Bayamón Municipio
Guaynabo Municipio, PR 6 km (4 mi) WNW of here earthquakes near Guaynabo Municipio
Toa Alta Municipio, PR 8 km (5 mi) E of here earthquakes near Toa Alta Municipio
Cataño Municipio, PR 10 km (6 mi) SSW of here earthquakes near Cataño Municipio
Naranjito Municipio, PR 11 km (7 mi) NE of here earthquakes near Naranjito Municipio
Toa Baja Municipio, PR 11 km (7 mi) S of here earthquakes near Toa Baja Municipio

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

Aftershocks so far

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

  1. 2.9 12 km NNE of Tierras Nuevas Poniente, Puerto Rico
  2. 2.1 7 km SSW of Jagual, Puerto Rico
  3. 3.1 4 km N of San Juan, Puerto Rico
  4. 2.9 2 km NW of Sabana, Puerto Rico
  5. 2.2 5 km ENE of Comerío, Puerto Rico
  6. 2.2 3 km SSW of Salinas, Puerto Rico
  7. 1.9 1 km E of Salinas, Puerto Rico
  8. 2.2 3 km W of Vázquez, Puerto Rico
  9. 2.1 6 km S of Salinas, Puerto Rico
  10. 2.0 5 km SSE of Salinas, Puerto Rico
  11. 2.7 15 km N of San Juan, Puerto Rico
  12. 2.1 7 km WSW of Naranjito, Puerto Rico
  13. 2.0 6 km S of G. L. Garcia, Puerto Rico
  14. 2.0 2 km ENE of Aguas Buenas, Puerto Rico
  15. 3.2 10 km NNE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2019-03-12 — it released about 1,600 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.