QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

5 km WSW of Rincón, Puerto Rico

· 17 km deep · released about 46 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 5 kmAguada Municipio 13 kmAñasco Municipio 18 kmAguadilla Municipio 23 kmMoca Municipio 24 kmHormigueros Municipio 29 kmIsabela Municipio 34 kmSan Sebastián Municipio 35 kmLas Marías Municipio 36 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 2.1 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 5 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3220 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 18.3290, -67.2965. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 5 km (3 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 13 km (8 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 18 km (11 mi) WNW of here earthquakes near Añasco Municipio
Aguadilla Municipio, PR 23 km (14 mi) SW of here earthquakes near Aguadilla Municipio
Moca Municipio, PR 24 km (15 mi) WSW of here earthquakes near Moca Municipio
Hormigueros Municipio, PR 29 km (18 mi) NW of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 2.0 9 km WNW of Puerto Real, Puerto Rico
  2. 2.5 23 km W of Rincón, Puerto Rico
  3. 2.2 5 km SW of Palmarejo, Puerto Rico
  4. 2.7 21 km W of Rincón, Puerto Rico
  5. 2.6 27 km SW of Stella, Puerto Rico
  6. 2.7 13 km WNW of Puerto Real, Puerto Rico
  7. 2.5 18 km SSW of Stella, Puerto Rico
  8. 2.0 12 km WNW of Puerto Real, Puerto Rico
  9. 2.5 Mona Passage
  10. 2.8 39 km NW of San Antonio, Puerto Rico
  11. 2.3 18 km WNW of Puerto Real, Puerto Rico
  12. 2.0 7 km WSW of Puerto Real, Puerto Rico
  13. 2.7 7 km W of Mayagüez, Puerto Rico
  14. 2.5 0 km NNE of Mayagüez, Puerto Rico
  15. 2.2 6 km ENE of La Parguera, 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 2,600 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.