QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

0 km E of Luis Llorens Torres, Puerto Rico

· 16 km deep · released about 310 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 7 kmVillalba Municipio 9 kmPonce Municipio 11 kmCoamo Municipio 18 kmSanta Isabel Municipio 18 kmJayuya Municipio 19 kmOrocovis Municipio 20 kmPeñuelas Municipio 22 kmCiales Municipio 26 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
16 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 7 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2345 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 310 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 50,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 35,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.1× the energy of this one
  4. This earthquake M 2.7 about 310 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 18.0578, -66.5186. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 7 km (5 mi) NNW of here earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 9 km (6 mi) SSW of here earthquakes near Villalba Municipio
Ponce Municipio, PR 11 km (7 mi) NE of here earthquakes near Ponce Municipio
Coamo Municipio, PR 18 km (11 mi) WSW of here earthquakes near Coamo Municipio
Santa Isabel Municipio, PR 18 km (11 mi) NW of here earthquakes near Santa Isabel Municipio
Jayuya Municipio, PR 19 km (12 mi) SSE of here earthquakes near Jayuya Municipio

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

Aftershocks so far

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

  1. 2.9 14 km SSE of Maria Antonia, Puerto Rico
  2. 2.4 3 km WSW of Fuig, Puerto Rico
  3. 2.4 7 km SSW of Indios, Puerto Rico
  4. 3.1 7 km SE of Maria Antonia, Puerto Rico
  5. 3.3 6 km SE of Maria Antonia, Puerto Rico
  6. 2.5 6 km SE of Maria Antonia, Puerto Rico
  7. 2.5 4 km S of Indios, Puerto Rico
  8. 3.0 0 km W of Maria Antonia, Puerto Rico
  9. 2.6 10 km SSE of Maria Antonia, Puerto Rico
  10. 2.5 0 km SSE of Magas Arriba, Puerto Rico
  11. 2.7 1 km NNW of Indios, Puerto Rico
  12. 2.2 Puerto Rico region
  13. 3.2 4 km S of Indios, Puerto Rico
  14. 3.3 13 km SSE of Guánica, Puerto Rico
  15. 2.0 7 km WSW of Guánica, 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 6.4 on 2020-01-07 — it released about 390,000 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.