QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

27 km NW of Rincón, Puerto Rico

· 17 km deep · released about 9.3 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 28 kmAguadilla Municipio 29 kmAguada Municipio 30 kmMoca Municipio 39 kmAñasco Municipio 41 kmIsabela Municipio 42 kmQuebradillas Municipio 52 kmSan Sebastián Municipio 52 kmHormigueros Municipio 55 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
17 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 28 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2778 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 9.3 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 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 18.5390, -67.4126. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 28 km (17 mi) NW of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 29 km (18 mi) WNW of here earthquakes near Aguadilla Municipio
Aguada Municipio, PR 30 km (19 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 39 km (25 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 41 km (25 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 42 km (26 mi) W of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 3.0 53 km W of Stella, Puerto Rico
  2. 2.0 4 km SSW of La Playa, Puerto Rico
  3. 2.2 12 km WNW of Puerto Real, Puerto Rico
  4. 3.0 52 km WNW of Rincón, Puerto Rico
  5. 2.6 29 km WNW of Rincón, Puerto Rico
  6. 2.7 13 km NNW of Rincón, Puerto Rico
  7. 2.8 56 km NW of San Antonio, Puerto Rico
  8. 1.8 3 km W of La Playa, Puerto Rico
  9. 2.1 11 km WNW of Puerto Real, Puerto Rico
  10. 2.4 27 km N of San Antonio, Puerto Rico
  11. 2.4 7 km NNW of Puerto Real, Puerto Rico
  12. 2.6 21 km NW of San Antonio, Puerto Rico
  13. 2.7 53 km NW of San Antonio, Puerto Rico
  14. 2.6 5 km W of Mayagüez, Puerto Rico
  15. 1.9 22 km W of Rincón, 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 2017-10-01 — it released about 13,000 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.