QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

6 km WNW of Palomas, Puerto Rico

· 21 km deep · released about 24 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 5 kmBarranquitas Municipio 7 kmNaranjito Municipio 7 kmComerío Municipio 10 kmToa Alta Municipio 14 kmMorovis Municipio 14 kmOrocovis Municipio 14 kmAibonito Municipio 15 kmBayamón Municipio 18 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 1.9 (md)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 5 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2818 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 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 18.2588, -66.3076. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 5 km (3 mi) SSE of here earthquakes near Corozal Municipio
Barranquitas Municipio, PR 7 km (4 mi) N of here earthquakes near Barranquitas Municipio
Naranjito Municipio, PR 7 km (4 mi) WSW of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 10 km (6 mi) WNW of here earthquakes near Comerío Municipio
Toa Alta Municipio, PR 14 km (8 mi) SSW of here earthquakes near Toa Alta Municipio
Morovis Municipio, PR 14 km (8 mi) ESE of here earthquakes near Morovis Municipio

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

Aftershocks so far

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

  1. 2.0 0 km SSE of Playita Cortada, Puerto Rico
  2. 1.6 5 km SE of Arroyo, Puerto Rico
  3. 2.3 4 km NW of Palomas, Puerto Rico
  4. 2.3 Puerto Rico region
  5. 2.3 6 km NE of Villalba, Puerto Rico
  6. 1.9 24 km NNE of Tierras Nuevas Poniente, Puerto Rico
  7. 2.6 8 km NNW of Tierras Nuevas Poniente, Puerto Rico
  8. 2.5 1 km ESE of Salinas, Puerto Rico
  9. 1.9 2 km WNW of Las Ollas, Puerto Rico
  10. 1.8 8 km SSW of Ciales, Puerto Rico
  11. 1.6 7 km NNE of Tallaboa Alta, Puerto Rico
  12. 1.7 5 km ENE of Adjuntas, Puerto Rico
  13. 2.9 8 km NNE of Animas, Puerto Rico
  14. 1.9 3 km ENE of Bairoa, Puerto Rico
  15. 2.4 24 km N of Dorado, 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.