QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

4 km WSW of Parcelas La Milagrosa, Puerto Rico

· 18 km deep · released about 74 lb of TNT

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10 km30 km60 km120 km N Aibonito Municipio 5 kmCidra Municipio 7 kmComerío Municipio 7 kmBarranquitas Municipio 10 kmCayey Municipio 10 kmNaranjito Municipio 15 kmAguas Buenas Municipio 15 kmCoamo Municipio 15 kmCorozal 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 2.3 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Aibonito Municipio, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 908 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 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 18.1598, -66.2252. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aibonito Municipio, PR 5 km (3 mi) NE of here earthquakes near Aibonito Municipio
Cidra Municipio, PR 7 km (4 mi) WSW of here earthquakes near Cidra Municipio
Comerío Municipio, PR 7 km (5 mi) S of here earthquakes near Comerío Municipio
Barranquitas Municipio, PR 10 km (6 mi) ESE of here earthquakes near Barranquitas Municipio
Cayey Municipio, PR 10 km (6 mi) NW of here earthquakes near Cayey Municipio
Naranjito Municipio, PR 15 km (9 mi) SSE of here earthquakes near Naranjito Municipio

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

Aftershocks so far

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

  1. 2.5 1 km SW of El Ojo, Puerto Rico
  2. 2.1 3 km E of Pastos, Puerto Rico
  3. 2.8 1 km ESE of Gurabo, Puerto Rico
  4. 2.3 5 km WSW of Central Aguirre, Puerto Rico
  5. 2.6 3 km WNW of Orocovis, Puerto Rico
  6. 1.9 4 km SSW of Comerío, Puerto Rico
  7. 2.6 4 km SSE of Salinas, Puerto Rico
  8. 2.4 4 km SE of Arroyo, Puerto Rico
  9. 2.1 2 km S of Jauca, Puerto Rico
  10. 3.1 5 km SW of Las Piedras, Puerto Rico
  11. 2.0 3 km WNW of Orocovis, Puerto Rico
  12. 2.3 10 km S of Ponce, Puerto Rico
  13. 2.7 4 km NW of Orocovis, Puerto Rico
  14. 3.0 7 km NNE of Tierras Nuevas Poniente, Puerto Rico
  15. 2.5 12 km SSE of Ponce, 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 4.6 on 2016-12-05 — it released about 3,200 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.