QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9Md

5 km NNE of Orocovis, Puerto Rico

· 134 km deep · released about 680 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 5 kmMorovis Municipio 8 kmBarranquitas Municipio 10 kmOrocovis Municipio 10 kmNaranjito Municipio 12 kmComerío Municipio 16 kmToa Alta Municipio 16 kmCiales Municipio 17 kmCoamo 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 2.9 (Md)
Depth
134 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 5 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3495 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 18.2700, -66.3616. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 5 km (3 mi) SW of here earthquakes near Corozal Municipio
Morovis Municipio, PR 8 km (5 mi) SE of here earthquakes near Morovis Municipio
Barranquitas Municipio, PR 10 km (6 mi) NW of here earthquakes near Barranquitas Municipio
Orocovis Municipio, PR 10 km (6 mi) NE of here earthquakes near Orocovis Municipio
Naranjito Municipio, PR 12 km (7 mi) W of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 16 km (10 mi) WNW of here earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 3.4 4 km N of Vega Baja, Puerto Rico
  2. 2.9 1 km E of La Plena, Puerto Rico
  3. 2.2 8 km SSW of Central Aguirre, Puerto Rico
  4. 2.1 2 km SW of Canovanas, Puerto Rico
  5. 2.2 1 km ESE of Cidra, Puerto Rico
  6. 3.2 4 km NNW of Bairoa, Puerto Rico
  7. 2.2 3 km S of Coamo, Puerto Rico
  8. 2.4 12 km NNE of Arecibo, Puerto Rico
  9. 2.6 1 km WSW of Campo Rico, Puerto Rico
  10. 2.5 3 km W of Guaynabo, Puerto Rico
  11. 2.1 0 km N of Pastos, Puerto Rico
  12. 2.5 1 km WSW of Bairoa, Puerto Rico
  13. 2.4 0 km WNW of Mariano Colón, Puerto Rico
  14. 3.1 1 km WSW of Sabana, Puerto Rico
  15. 2.8 2 km NE of Animas, 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.