QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

2 km NW of Orocovis, Puerto Rico

· 35 km deep · released about 700 lb of TNT

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10 km30 km60 km120 km N Orocovis Municipio 4 kmMorovis Municipio 9 kmCorozal Municipio 11 kmBarranquitas Municipio 11 kmCiales Municipio 13 kmVillalba Municipio 14 kmCoamo Municipio 16 kmNaranjito Municipio 17 kmAibonito 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 2.9 (md)
Depth
35 km below the surface
Felt
no reports yet
Nearest
Orocovis Municipio, 4 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 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 700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 15,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 700 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 18.2432, -66.4032. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orocovis Municipio, PR 4 km (3 mi) NE of here earthquakes near Orocovis Municipio
Morovis Municipio, PR 9 km (5 mi) SSE of here earthquakes near Morovis Municipio
Corozal Municipio, PR 11 km (7 mi) SW of here earthquakes near Corozal Municipio
Barranquitas Municipio, PR 11 km (7 mi) WNW of here earthquakes near Barranquitas Municipio
Ciales Municipio, PR 13 km (8 mi) ESE of here earthquakes near Ciales Municipio
Villalba Municipio, PR 14 km (9 mi) NNE of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.2 8 km SSE of Lares, Puerto Rico
  2. 2.2 1 km NNW of Guayanilla, Puerto Rico
  3. 2.0 1 km W of Magas Arriba, Puerto Rico
  4. 2.3 5 km SSW of Tallaboa, Puerto Rico
  5. 2.4 1 km ESE of Coto Laurel, Puerto Rico
  6. 2.9 9 km NNW of Brenas, Puerto Rico
  7. 2.1 2 km NW of Tallaboa, Puerto Rico
  8. 1.6 2 km S of G. L. Garcia, Puerto Rico
  9. 2.8 19 km N of Dorado, Puerto Rico
  10. 2.2 1 km W of Naranjito, Puerto Rico
  11. 3.0 5 km SSW of Tallaboa, Puerto Rico
  12. 2.2 3 km ESE of G. L. Garcia, 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 11,000 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.