QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

4 km SSE of Cacao, Puerto Rico

· 13 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 7 kmCamuy Municipio 7 kmSan Sebastián Municipio 10 kmHatillo Municipio 13 kmIsabela Municipio 14 kmLares Municipio 15 kmMoca Municipio 17 kmLas Marías Municipio 20 kmMaricao Municipio 25 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
13 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 7 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2552 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 200 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 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 18.4018, -66.9166. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 7 km (5 mi) S of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 7 km (5 mi) SW of here earthquakes near Camuy Municipio
San Sebastián Municipio, PR 10 km (6 mi) NE of here earthquakes near San Sebastián Municipio
Hatillo Municipio, PR 13 km (8 mi) WSW of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 14 km (9 mi) SE of here earthquakes near Isabela Municipio
Lares Municipio, PR 15 km (9 mi) NNW of here earthquakes near Lares Municipio

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

Aftershocks so far

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

  1. 1.8 3 km NNE of Santo Domingo, Puerto Rico
  2. 2.4 29 km N of Isabela, Puerto Rico
  3. 1.6 1 km W of San Germán, Puerto Rico
  4. 1.7 10 km WNW of Orocovis, Puerto Rico
  5. 1.9 3 km SE of Utuado, Puerto Rico
  6. 2.1 17 km NNW of San Antonio, Puerto Rico
  7. 1.6 10 km NW of Coto Laurel, Puerto Rico
  8. 1.6 11 km ESE of Maricao, Puerto Rico
  9. 2.9 30 km N of San Antonio, Puerto Rico
  10. 2.1 15 km N of Carrizales, Puerto Rico
  11. 1.6 0 km NW of Cabo Rojo, Puerto Rico
  12. 1.7 1 km S of Liborio Negron Torres, Puerto Rico
  13. 2.2 12 km NNW of Tierras Nuevas Poniente, Puerto Rico
  14. 1.9 4 km WNW of Fuig, Puerto Rico
  15. 2.0 10 km W of Adjuntas, 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.