QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

Puerto Rico region

· 12 km deep · released about 630 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 3 kmNaranjito Municipio 5 kmToa Alta Municipio 10 kmBarranquitas Municipio 10 kmComerío Municipio 12 kmMorovis Municipio 13 kmBayamón Municipio 16 kmOrocovis Municipio 16 kmVega Alta 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 2.9 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 3 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1398 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 630 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 24,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 17,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.5× the energy of this one
  4. This earthquake M 2.9 about 630 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 18.2918, -66.3028. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 3 km (2 mi) ESE of here earthquakes near Corozal Municipio
Naranjito Municipio, PR 5 km (3 mi) W of here earthquakes near Naranjito Municipio
Toa Alta Municipio, PR 10 km (6 mi) SW of here earthquakes near Toa Alta Municipio
Barranquitas Municipio, PR 10 km (6 mi) N of here earthquakes near Barranquitas Municipio
Comerío Municipio, PR 12 km (7 mi) NW of here earthquakes near Comerío Municipio
Morovis Municipio, PR 13 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

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

  1. 1.6 3 km ENE of Capitanejo, Puerto Rico
  2. 3.7 Puerto Rico region
  3. 3.2 5 km ESE of Pájaros, Puerto Rico
  4. 3.1 4 km SSW of Florida, Puerto Rico
  5. 2.2 1 km SSW of Ponce, Puerto Rico
  6. 2.4 3 km S of Ponce, Puerto Rico
  7. 2.1 3 km WNW of Jobos, Puerto Rico
  8. 2.1 3 km S of Adjuntas, Puerto Rico
  9. 2.1 1 km WNW of Aguilita, Puerto Rico
  10. 2.4 1 km NNE of Luis Llorens Torres, Puerto Rico
  11. 2.1 0 km NNE of Aguilita, 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.