QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

10 km NNE of Carrizales, Puerto Rico

· 19 km deep · released about 9.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 15 kmArecibo Municipio 17 kmCamuy Municipio 18 kmQuebradillas Municipio 22 kmBarceloneta Municipio 23 kmIsabela Municipio 29 kmFlorida Municipio 30 kmManatí Municipio 30 kmUtuado Municipio 33 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 1.7 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 15 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2746 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 9.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 18.5676, -66.7500. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 15 km (9 mi) NNE of here earthquakes near Hatillo Municipio
Arecibo Municipio, PR 17 km (10 mi) NNW of here earthquakes near Arecibo Municipio
Camuy Municipio, PR 18 km (11 mi) NE of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 22 km (14 mi) ENE of here earthquakes near Quebradillas Municipio
Barceloneta Municipio, PR 23 km (14 mi) WNW of here earthquakes near Barceloneta Municipio
Isabela Municipio, PR 29 km (18 mi) ENE 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. 2.3 39 km N of Hatillo, Puerto Rico
  2. 1.5 1 km NNW of Animas, Puerto Rico
  3. 1.9 2 km N of Animas, Puerto Rico
  4. 2.5 57 km N of Arecibo, Puerto Rico
  5. 2.9 37 km N of Brenas, Puerto Rico
  6. 2.4 9 km N of Villalba, Puerto Rico
  7. 2.1 19 km N of Carrizales, Puerto Rico
  8. 2.2 18 km NNE of Isabela, Puerto Rico
  9. 2.0 25 km NNE of Isabela, Puerto Rico
  10. 1.7 11 km NE of Sabana Grande, Puerto Rico
  11. 2.0 12 km NNW of Hatillo, Puerto Rico
  12. 2.4 Puerto Rico region
  13. 2.1 3 km NW of Quebradillas, Puerto Rico
  14. 2.7 19 km N of Isabela, Puerto Rico
  15. 2.5 56 km N of Hatillo, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2018-12-09 — it released about 12,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.