QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

1 km WSW of Cataño, Puerto Rico

· 109 km deep · released about 590 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cataño Municipio 2 kmSan Juan Municipio 7 kmToa Baja Municipio 7 kmGuaynabo Municipio 11 kmBayamón Municipio 11 kmDorado Municipio 14 kmToa Alta Municipio 15 kmTrujillo Alto Municipio 18 kmCarolina 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
109 km below the surface
Felt
no reports yet
Nearest
Cataño Municipio, 2 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3110 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 590 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 26,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 18,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.6× the energy of this one
  4. This earthquake M 2.9 about 590 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 18.4386, -66.1303. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cataño Municipio, PR 2 km (1 mi) ESE of here earthquakes near Cataño Municipio
San Juan Municipio, PR 7 km (4 mi) WNW of here earthquakes near San Juan Municipio
Toa Baja Municipio, PR 7 km (4 mi) ESE of here earthquakes near Toa Baja Municipio
Guaynabo Municipio, PR 11 km (7 mi) N of here earthquakes near Guaynabo Municipio
Bayamón Municipio, PR 11 km (7 mi) NNE of here earthquakes near Bayamón Municipio
Dorado Municipio, PR 14 km (9 mi) ESE of here earthquakes near Dorado Municipio

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

Aftershocks so far

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

  1. 3.0 20 km N of Loíza, Puerto Rico
  2. 2.8 37 km N of San Juan, Puerto Rico
  3. 2.1 2 km NW of Bayamon, Puerto Rico
  4. 2.5 35 km NNE of San Juan, Puerto Rico
  5. 2.5 5 km SE of Pájaros, Puerto Rico
  6. 2.8 9 km ENE of San Juan, Puerto Rico
  7. 2.9 5 km NE of Guaynabo, Puerto Rico
  8. 3.0 0 km SE of Garrochales, Puerto Rico
  9. 2.6 3 km N of Corozal, Puerto Rico
  10. 2.7 22 km N of Tierras Nuevas Poniente, Puerto Rico
  11. 2.8 4 km NW of Bairoa, Puerto Rico
  12. 2.5 9 km N of Dorado, Puerto Rico
  13. 2.1 6 km NW of Palomas, Puerto Rico
  14. 2.8 1 km N of Bayamón, Puerto Rico
  15. 2.4 8 km ESE of Jayuya, 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.