QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

1 km ESE of Orocovis, Puerto Rico

· 31 km deep · released about 460 lb of TNT

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10 km30 km60 km120 km N Orocovis Municipio 6 kmBarranquitas Municipio 7 kmCorozal Municipio 11 kmMorovis Municipio 12 kmCoamo Municipio 13 kmVillalba Municipio 14 kmNaranjito Municipio 15 kmAibonito Municipio 15 kmComerío Municipio 16 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 2.8 (md)
Depth
31 km below the surface
Felt
no reports yet
Nearest
Orocovis Municipio, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2155 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 460 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 33,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 23,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 460 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 18.2200, -66.3756. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orocovis Municipio, PR 6 km (4 mi) E of here earthquakes near Orocovis Municipio
Barranquitas Municipio, PR 7 km (5 mi) WNW of here earthquakes near Barranquitas Municipio
Corozal Municipio, PR 11 km (7 mi) SSW of here earthquakes near Corozal Municipio
Morovis Municipio, PR 12 km (7 mi) SSE of here earthquakes near Morovis Municipio
Coamo Municipio, PR 13 km (8 mi) N of here earthquakes near Coamo Municipio
Villalba Municipio, PR 14 km (9 mi) NE of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.4 3.2 km NNW of Magas Arriba, Puerto Rico
  2. 2.3 9.4 km NNE of Potala Pastillo, Puerto Rico
  3. 2.3 3 km NW of Tallaboa, Puerto Rico
  4. 2.4 3 km ENE of Magas Arriba, Puerto Rico
  5. 3.2 3 km SSE of Magas Arriba, Puerto Rico
  6. 3.0 Puerto Rico region
  7. 3.1 5 km SW of Tallaboa, Puerto Rico
  8. 2.5 Puerto Rico region
  9. 2.3 3 km S of Magas Arriba, Puerto Rico
  10. 2.4 5 km SSW of Tallaboa, Puerto Rico
  11. 2.4 4 km WSW of Tallaboa, Puerto Rico
  12. 2.2 1 km SSW of Magas Arriba, Puerto Rico
  13. 2.4 5 km SW of Tallaboa, 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 16,000 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.