QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

4 km SSE of Ciales, Puerto Rico

· 47 km deep · released about 330 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Morovis Municipio 5 kmCiales Municipio 6 kmOrocovis Municipio 9 kmCorozal Municipio 14 kmFlorida Municipio 14 kmJayuya Municipio 16 kmManatí Municipio 17 kmVillalba Municipio 18 kmBarranquitas Municipio 19 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
47 km below the surface
Felt
no reports yet
Nearest
Morovis Municipio, 5 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 983 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 330 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 46,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 33,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.9× the energy of this one
  4. This earthquake M 2.7 about 330 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 18.2933, -66.4570. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Morovis Municipio, PR 5 km (3 mi) SW of here earthquakes near Morovis Municipio
Ciales Municipio, PR 6 km (4 mi) E of here earthquakes near Ciales Municipio
Orocovis Municipio, PR 9 km (5 mi) NNW of here earthquakes near Orocovis Municipio
Corozal Municipio, PR 14 km (9 mi) W of here earthquakes near Corozal Municipio
Florida Municipio, PR 14 km (9 mi) SE of here earthquakes near Florida Municipio
Jayuya Municipio, PR 16 km (10 mi) ENE of here earthquakes near Jayuya Municipio

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

Aftershocks so far

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

  1. 3.2 1 km NE of Hatillo, Puerto Rico
  2. 3.1 2 km SW of Santa Clara, Puerto Rico
  3. 2.0 8 km S of Lares, Puerto Rico
  4. 2.4 Puerto Rico region
  5. 2.6 2 km W of Guayanilla, Puerto Rico
  6. 2.3 5 km SW of Tallaboa, Puerto Rico
  7. 1.9 2 km N of Yauco, Puerto Rico
  8. 2.3 8 km W of Orocovis, Puerto Rico
  9. 2.2 3 km E of Magas Arriba, Puerto Rico
  10. 2.3 6 km SE of Tallaboa, Puerto Rico
  11. 2.5 2 km S of Potala Pastillo, Puerto Rico
  12. 2.4 3 km ESE of Salinas, Puerto Rico
  13. 2.2 2 km SSE of Santa Isabel, Puerto Rico
  14. 3.1 Puerto Rico region
  15. 2.3 2 km NNE of Guayanilla, 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 5.6 on 2020-01-07 — it released about 23,000 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.