QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

4 km WNW of Orocovis, Puerto Rico

· 44 km deep · released about 49 lb of TNT

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10 km30 km60 km120 km N Orocovis Municipio 3 kmMorovis Municipio 8 kmCiales Municipio 11 kmCorozal Municipio 13 kmVillalba Municipio 14 kmBarranquitas Municipio 14 kmJayuya Municipio 17 kmCoamo Municipio 17 kmNaranjito 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 2.1 (md)
Depth
44 km below the surface
Felt
no reports yet
Nearest
Orocovis Municipio, 3 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 392 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 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 18.2450, -66.4283. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orocovis Municipio, PR 3 km (2 mi) NNE of here earthquakes near Orocovis Municipio
Morovis Municipio, PR 8 km (5 mi) S of here earthquakes near Morovis Municipio
Ciales Municipio, PR 11 km (7 mi) ESE of here earthquakes near Ciales Municipio
Corozal Municipio, PR 13 km (8 mi) WSW of here earthquakes near Corozal Municipio
Villalba Municipio, PR 14 km (8 mi) NNE of here earthquakes near Villalba Municipio
Barranquitas Municipio, PR 14 km (8 mi) WNW of here earthquakes near Barranquitas Municipio

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

Aftershocks so far

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

  1. 2.6 1 km NW of Tallaboa, Puerto Rico
  2. 1.9 8 km WSW of Adjuntas, Puerto Rico
  3. 2.8 10 km S of Santa Isabel, Puerto Rico
  4. 2.6 10 km S of Santa Isabel, Puerto Rico
  5. 2.8 9 km S of Santa Isabel, Puerto Rico
  6. 2.4 13 km S of Santa Isabel, Puerto Rico
  7. 2.3 2 km W of Guayanilla, Puerto Rico
  8. 2.4 2 km NNW of Magas Arriba, Puerto Rico
  9. 2.1 1 km ENE of Magas Arriba, Puerto Rico
  10. 2.2 1 km NE of Magas Arriba, Puerto Rico
  11. 2.4 0 km ESE of Indios, Puerto Rico
  12. 2.1 5 km SE of Indios, Puerto Rico
  13. 3.0 3 km SW of Vega Alta, Puerto Rico
  14. 2.4 4 km NW of Orocovis, Puerto Rico
  15. 2.3 4 km WNW of Orocovis, 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 150,000 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.