QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

3 km NE of Hatillo, Puerto Rico

· 15 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 7 kmCamuy Municipio 9 kmQuebradillas Municipio 14 kmArecibo Municipio 16 kmIsabela Municipio 22 kmSan Sebastián Municipio 26 kmBarceloneta Municipio 26 kmLares Municipio 27 kmUtuado Municipio 28 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 1.8 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 7 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2976 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 18.5076, -66.8053. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 7 km (5 mi) N of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 9 km (6 mi) NE of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 14 km (9 mi) ENE of here earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 16 km (10 mi) WNW of here earthquakes near Arecibo Municipio
Isabela Municipio, PR 22 km (14 mi) E of here earthquakes near Isabela Municipio
San Sebastián Municipio, PR 26 km (16 mi) NE of here earthquakes near San Sebastián Municipio

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

Aftershocks so far

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

  1. 2.0 6 km SW of Maricao, Puerto Rico
  2. 2.1 Mona Passage
  3. 2.1 0 km NE of Ciales, Puerto Rico
  4. 2.5 4 km E of Isabela, Puerto Rico
  5. 2.7 10 km NNE of Isabela, Puerto Rico
  6. 1.8 3 km NW of Sabana Grande, Puerto Rico
  7. 2.1 3 km WSW of Maricao, Puerto Rico
  8. 2.1 5 km WNW of Maricao, Puerto Rico
  9. 2.8 4 km NNW of Sabana, Puerto Rico
  10. 2.7 26 km NNW of Isabela, Puerto Rico
  11. 1.7 8 km S of Villalba, Puerto Rico
  12. 1.7 2 km NNE of Santo Domingo, Puerto Rico
  13. 2.7 4 km ESE of Florida, Puerto Rico
  14. 2.2 11 km N of Arecibo, Puerto Rico
  15. 2.5 3 km NW of Las Marias, 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.