QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

7 km SW of Orocovis, Puerto Rico

· 85 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Orocovis Municipio 4 kmVillalba Municipio 7 kmCoamo Municipio 13 kmBarranquitas Municipio 14 kmCiales Municipio 15 kmMorovis Municipio 15 kmJayuya Municipio 16 kmCorozal Municipio 18 kmAibonito Municipio 20 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
85 km below the surface
Felt
no reports yet
Nearest
Orocovis Municipio, 4 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3503 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 480 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 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 18.1844, -66.4415. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orocovis Municipio, PR 4 km (2 mi) S of here earthquakes near Orocovis Municipio
Villalba Municipio, PR 7 km (4 mi) NNE of here earthquakes near Villalba Municipio
Coamo Municipio, PR 13 km (8 mi) NW of here earthquakes near Coamo Municipio
Barranquitas Municipio, PR 14 km (9 mi) W of here earthquakes near Barranquitas Municipio
Ciales Municipio, PR 15 km (9 mi) SSE of here earthquakes near Ciales Municipio
Morovis Municipio, PR 15 km (9 mi) S of here earthquakes near Morovis 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. 2.7 14 km S of Tallaboa, Puerto Rico
  2. 2.7 4 km SSW of Playita Cortada, Puerto Rico
  3. 3.1 1 km SSE of Pájaros, Puerto Rico
  4. 2.5 1 km NE of Salinas, Puerto Rico
  5. 2.0 7 km SE of Ponce, Puerto Rico
  6. 2.0 2 km NE of Yauco, Puerto Rico
  7. 1.8 4 km NNE of Yauco, Puerto Rico
  8. 2.4 3 km WSW of Gurabo, Puerto Rico
  9. 2.2 9 km ESE of Maricao, Puerto Rico
  10. 2.3 2 km ENE of Potala Pastillo, Puerto Rico
  11. 3.4 4 km N of Vega Baja, Puerto Rico
  12. 2.9 1 km E of La Plena, Puerto Rico
  13. 1.5 5 km SSE of Tallaboa, Puerto Rico
  14. 2.2 8 km SSW of Central Aguirre, Puerto Rico
  15. 2.2 1 km ESE of Cidra, 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.