QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

4 km SE of Piedra Gorda, Puerto Rico

· 13 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Camuy Municipio 5 kmHatillo Municipio 7 kmQuebradillas Municipio 11 kmLares Municipio 14 kmSan Sebastián Municipio 14 kmIsabela Municipio 19 kmArecibo Municipio 19 kmUtuado Municipio 22 kmLas Marías Municipio 23 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
13 km below the surface
Felt
no reports yet
Nearest
Camuy Municipio, 5 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2653 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 22 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 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 18.4013, -66.8553. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Camuy Municipio, PR 5 km (3 mi) S of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 7 km (5 mi) SW of here earthquakes near Hatillo Municipio
Quebradillas Municipio, PR 11 km (7 mi) SE of here earthquakes near Quebradillas Municipio
Lares Municipio, PR 14 km (9 mi) N of here earthquakes near Lares Municipio
San Sebastián Municipio, PR 14 km (9 mi) ENE of here earthquakes near San Sebastián Municipio
Isabela Municipio, PR 19 km (12 mi) ESE of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 1.8 1 km ESE of Stella, Puerto Rico
  2. 2.0 6 km NNE of Sabana Eneas, Puerto Rico
  3. 2.3 3 km ENE of Espino, Puerto Rico
  4. 2.4 26 km N of Arecibo, Puerto Rico
  5. 1.9 8 km N of Yauco, Puerto Rico
  6. 2.5 5 km NNE of Isabela, Puerto Rico
  7. 2.1 2 km E of Mayagüez, Puerto Rico
  8. 1.7 5 km NNE of Sabana Grande, Puerto Rico
  9. 1.8 4 km SSW of Añasco, Puerto Rico
  10. 1.9 6 km NW of Adjuntas, Puerto Rico
  11. 1.6 5 km NNE of Sabana Grande, Puerto Rico
  12. 2.4 5 km NNE of Sabana Grande, Puerto Rico
  13. 1.6 7 km ESE of Las Marías, Puerto Rico
  14. 2.0 8 km W of Maricao, Puerto Rico
  15. 1.6 6 km NNE of Ponce, 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.