QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

35 km NW of Rincón, Puerto Rico

· 17 km deep · released about 25 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 36 kmAguadilla Municipio 36 kmAguada Municipio 38 kmMoca Municipio 47 kmAñasco Municipio 49 kmIsabela Municipio 49 kmQuebradillas Municipio 58 kmSan Sebastián Municipio 60 kmHormigueros Municipio 63 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
17 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 36 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2518 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 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 18.5886, -67.4660. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 36 km (22 mi) NW of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 36 km (22 mi) WNW of here earthquakes near Aguadilla Municipio
Aguada Municipio, PR 38 km (24 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 47 km (29 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 49 km (30 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 49 km (30 mi) WNW of here earthquakes near Isabela 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. 2.6 43 km NNW of San Antonio, Puerto Rico
  2. 2.1 10 km W of Rincón, Puerto Rico
  3. 2.5 12 km WNW of San Antonio, Puerto Rico
  4. 2.5 51 km N of San Antonio, Puerto Rico
  5. 2.5 55 km NNW of San Antonio, Puerto Rico
  6. 2.7 33 km N of Isabela, Puerto Rico
  7. 2.9 65 km WNW of Rincón, Puerto Rico
  8. 2.1 1 km SW of San Antonio, Puerto Rico
  9. 2.1 7 km SW of La Playa, Puerto Rico
  10. 2.6 18 km W of Rincón, Puerto Rico
  11. 1.9 21 km WNW of Puerto Real, Puerto Rico
  12. 2.3 6 km NW of Aguada, Puerto Rico
  13. 3.0 46 km N of San Antonio, Puerto Rico
  14. 2.3 1 km ENE of Stella, Puerto Rico
  15. 2.5 23 km SW of Stella, 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 4,700 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.