QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

4 km ENE of Orocovis, Puerto Rico

· 30 km deep · released about 46 lb of TNT

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10 km30 km60 km120 km N Barranquitas Municipio 6 kmCorozal Municipio 8 kmOrocovis Municipio 9 kmMorovis Municipio 12 kmNaranjito Municipio 12 kmComerío Municipio 14 kmCoamo Municipio 15 kmAibonito Municipio 15 kmVillalba Municipio 18 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 2.1 (md)
Depth
30 km below the surface
Felt
no reports yet
Nearest
Barranquitas Municipio, 6 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 919 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 18.2383, -66.3503. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barranquitas Municipio, PR 6 km (4 mi) NW of here earthquakes near Barranquitas Municipio
Corozal Municipio, PR 8 km (5 mi) SSW of here earthquakes near Corozal Municipio
Orocovis Municipio, PR 9 km (6 mi) ENE of here earthquakes near Orocovis Municipio
Morovis Municipio, PR 12 km (7 mi) SE of here earthquakes near Morovis Municipio
Naranjito Municipio, PR 12 km (7 mi) WSW of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 14 km (9 mi) W of here earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 2.4 6 km SSE of Salinas, Puerto Rico
  2. 2.0 7 km SSW of Orocovis, Puerto Rico
  3. 1.6 7 km SSE of Salinas, Puerto Rico
  4. 2.4 3 km WSW of Potala Pastillo, Puerto Rico
  5. 2.0 1 km W of Ponce, Puerto Rico
  6. 2.0 5 km SW of Central Aguirre, Puerto Rico
  7. 2.3 4 km WSW of Parcelas La Milagrosa, Puerto Rico
  8. 2.5 2 km SSW of Peñuelas, Puerto Rico
  9. 2.3 5 km WSW of Central Aguirre, Puerto Rico
  10. 1.9 7 km ESE of G. L. Garcia, Puerto Rico
  11. 2.0 5 km S of Salinas, Puerto Rico
  12. 2.9 10 km NNW of San Juan, Puerto Rico
  13. 2.7 1 km W of G. L. Garcia, Puerto Rico
  14. 3.6 1 km NW of Palmarejo, 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 5.0 on 2020-01-07 — it released about 21,000 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.