QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

35 km WNW of Rincón, Puerto Rico

· 14 km deep · released about 49 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 36 kmAguada Municipio 40 kmAguadilla Municipio 42 kmAñasco Municipio 50 kmMoca Municipio 51 kmIsabela Municipio 56 kmMayagüez Municipio 60 kmHormigueros Municipio 61 kmSan Sebastián Municipio 64 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
14 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 36 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2947 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 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 18.5075, -67.5418. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 36 km (22 mi) WNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 40 km (25 mi) WNW of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 42 km (26 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 50 km (31 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 51 km (32 mi) WNW of here earthquakes near Moca Municipio
Isabela Municipio, PR 56 km (35 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

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

  1. 2.2 27 km WNW of Aguadilla, Puerto Rico
  2. 2.6 66 km ENE of Punta Cana, Dominican Republic
  3. 2.6 43 km WSW of Stella, Puerto Rico
  4. 2.6 38 km NNW of San Antonio, Puerto Rico
  5. 2.7 32 km NW of San Antonio, Puerto Rico
  6. 1.7 4 km S of La Playa, Puerto Rico
  7. 2.1 49 km NNW of San Antonio, Puerto Rico
  8. 2.9 16 km WSW of Stella, Puerto Rico
  9. 1.9 19 km WNW of Puerto Real, Puerto Rico
  10. 2.4 10 km WSW of Stella, Puerto Rico
  11. 2.6 23 km NNW of San Antonio, Puerto Rico
  12. 2.0 11 km WNW of Puerto Real, Puerto Rico
  13. 2.7 36 km NNW of San Antonio, Puerto Rico
  14. 2.5 42 km NNW of San Antonio, Puerto Rico
  15. 3.0 65 km SE of Punta Cana, Dominican Republic

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 2,500 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.