QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

42 km WSW of Pole Ojea, Puerto Rico

· 33 km deep · released about 380 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 42 kmCabo Rojo Municipio 43 kmHormigueros Municipio 56 kmLajas Municipio 57 kmSan Germán Municipio 62 kmRincón Municipio 62 kmAñasco Municipio 66 kmGuánica Municipio 69 kmAguada Municipio 69 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 2.7 (md)
Depth
33 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 42 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3071 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 380 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 40,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 29,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 380 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 17.8656, -67.5658. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 42 km (26 mi) SE of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 43 km (27 mi) WSW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 56 km (35 mi) WSW of here earthquakes near Hormigueros Municipio
Lajas Municipio, PR 57 km (35 mi) WSW of here earthquakes near Lajas Municipio
San Germán Municipio, PR 62 km (39 mi) WSW of here earthquakes near San Germán Municipio
Rincón Municipio, PR 62 km (39 mi) SSW of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.4 26 km W of Puerto Real, Puerto Rico
  2. 2.0 7 km NW of Puerto Real, Puerto Rico
  3. 2.1 28 km SW of Pole Ojea, Puerto Rico
  4. 2.0 17 km WSW of Pole Ojea, Puerto Rico
  5. 1.7 11 km S of Pole Ojea, Puerto Rico
  6. 2.7 21 km WSW of Stella, Puerto Rico
  7. 3.2 80 km W of Pole Ojea, Puerto Rico
  8. 2.6 11 km W of Pole Ojea, Puerto Rico
  9. 2.7 11 km W of Puerto Real, Puerto Rico
  10. 1.6 13 km W of Mayagüez, Puerto Rico
  11. 2.5 18 km W of Puerto Real, Puerto Rico
  12. 2.3 19 km SW of Stella, Puerto Rico
  13. 2.2 6 km S of Pole Ojea, Puerto Rico
  14. 2.4 18 km SW of Stella, Puerto Rico
  15. 2.6 13 km S of Pole Ojea, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.