QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

5 km W of Orocovis, Puerto Rico

· 34 km deep · released about 40 lb of TNT

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10 km30 km60 km120 km N Orocovis Municipio 2 kmMorovis Municipio 10 kmCiales Municipio 10 kmVillalba Municipio 12 kmBarranquitas Municipio 15 kmCorozal Municipio 15 kmJayuya Municipio 15 kmCoamo Municipio 17 kmFlorida 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 2.1 (md)
Depth
34 km below the surface
Felt
no reports yet
Nearest
Orocovis Municipio, 2 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 743 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 40 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 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 18.2310, -66.4442. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orocovis Municipio, PR 2 km (1 mi) NNW of here earthquakes near Orocovis Municipio
Morovis Municipio, PR 10 km (6 mi) SSW of here earthquakes near Morovis Municipio
Ciales Municipio, PR 10 km (6 mi) SE of here earthquakes near Ciales Municipio
Villalba Municipio, PR 12 km (7 mi) NNE of here earthquakes near Villalba Municipio
Barranquitas Municipio, PR 15 km (9 mi) WNW of here earthquakes near Barranquitas Municipio
Corozal Municipio, PR 15 km (9 mi) WSW of here earthquakes near Corozal Municipio

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

Aftershocks so far

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

  1. 2.8 1 km SE of Naranjito, Puerto Rico
  2. 2.8 2 km NW of Indios, Puerto Rico
  3. 2.5 2 km SSE of Indios, Puerto Rico
  4. 2.3 2 km SSE of Magas Arriba, Puerto Rico
  5. 2.5 0 km N of Magas Arriba, Puerto Rico
  6. 3.4 1 km ENE of Magas Arriba, Puerto Rico
  7. 2.5 4 km SSE of Tallaboa, Puerto Rico
  8. 2.1 1 km NNE of Magas Arriba, Puerto Rico
  9. 3.1 1 km ENE of Magas Arriba, Puerto Rico
  10. 2.4 3 km SSW of Tallaboa, Puerto Rico
  11. 2.4 3 km S of Tallaboa, Puerto Rico
  12. 2.1 7 km SSW of Corozal, Puerto Rico
  13. 2.2 2 km NNE of Guayanilla, Puerto Rico
  14. 2.3 20 km SSW of Santa Isabel, Puerto Rico
  15. 2.5 2 km SSE of Guayanilla, 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 6.4 on 2020-01-07 — it released about 3,000,000 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.