QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

20 km N of Hatillo, Puerto Rico

· 12 km deep · released about 7.8 lb of TNT

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10 km30 km60 km120 km N Quebradillas Municipio 24 kmCamuy Municipio 25 kmHatillo Municipio 26 kmIsabela Municipio 27 kmArecibo Municipio 32 kmAguadilla Municipio 37 kmBarceloneta Municipio 38 kmSan Sebastián Municipio 40 kmMoca Municipio 40 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 1.6 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 24 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3044 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 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 18.6691, -66.8520. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 24 km (15 mi) NNE of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 25 km (15 mi) N of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 26 km (16 mi) NNW of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 27 km (17 mi) NE of here earthquakes near Isabela Municipio
Arecibo Municipio, PR 32 km (20 mi) NW of here earthquakes near Arecibo Municipio
Aguadilla Municipio, PR 37 km (23 mi) NE of here earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 2.1 15 km N of Quebradillas, Puerto Rico
  2. 2.5 32 km NNW of San Antonio, Puerto Rico
  3. 2.6 41 km N of Tierras Nuevas Poniente, Puerto Rico
  4. 2.8 20 km WNW of San Antonio, Puerto Rico
  5. 2.2 39 km NNW of San Antonio, Puerto Rico
  6. 3.0 63 km N of Hatillo, Puerto Rico
  7. 2.9 20 km NNW of Brenas, Puerto Rico
  8. 3.1 8 km N of Hatillo, Puerto Rico
  9. 2.5 26 km N of Tierras Nuevas Poniente, Puerto Rico
  10. 2.1 16 km N of Quebradillas, Puerto Rico
  11. 2.6 60 km N of Hatillo, Puerto Rico
  12. 2.8 56 km N of Hatillo, Puerto Rico
  13. 2.6 1 km ESE of Carrizales, Puerto Rico
  14. 2.6 6 km NNE of Carrizales, Puerto Rico
  15. 2.9 59 km N of Tierras Nuevas Poniente, 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 4.0 on 2017-03-24 — it released about 3,800 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.