QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

18 km NW of Puerto Real, Puerto Rico

· 18 km deep · released about 79 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 21 kmHormigueros Municipio 23 kmAñasco Municipio 25 kmCabo Rojo Municipio 25 kmAguada Municipio 28 kmSan Germán Municipio 32 kmMoca Municipio 35 kmLajas Municipio 37 kmLas Marías Municipio 38 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 2.3 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 21 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 282 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 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 18.1698, -67.3302. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 21 km (13 mi) SSW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 23 km (14 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 25 km (15 mi) WSW of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 25 km (15 mi) NW of here earthquakes near Cabo Rojo Municipio
Aguada Municipio, PR 28 km (17 mi) SSW of here earthquakes near Aguada Municipio
San Germán Municipio, PR 32 km (20 mi) WNW of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 1.9 6 km E of La Parguera, Puerto Rico
  2. 2.4 3 km SSW of Guánica, Puerto Rico
  3. 2.8 3 km N of San Germán, Puerto Rico
  4. 3.3 32 km WNW of Rincón, Puerto Rico
  5. 1.9 1 km ENE of Fuig, Puerto Rico
  6. 2.5 2 km NNW of Las Marias, Puerto Rico
  7. 2.8 3 km N of San Germán, Puerto Rico
  8. 2.3 1 km NE of Lajas, Puerto Rico
  9. 2.6 6 km SW of Las Marías, Puerto Rico
  10. 2.4 12 km SW of La Playa, Puerto Rico
  11. 1.8 5 km WSW of Fuig, Puerto Rico
  12. 2.1 1 km SSE of Las Marías, Puerto Rico
  13. 2.4 2 km N of La Playa, Puerto Rico
  14. 2.0 6 km SW of Guánica, Puerto Rico
  15. 2.7 1 km SW 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 5.3 on 2020-07-03 — it released about 34,000 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.