QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Puerto Rico region

· 25 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 18 kmArecibo Municipio 18 kmCamuy Municipio 22 kmBarceloneta Municipio 22 kmQuebradillas Municipio 25 kmManatí Municipio 30 kmFlorida Municipio 30 kmIsabela Municipio 33 kmUtuado Municipio 36 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
25 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 18 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1565 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 18.5920, -66.7268. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 18 km (11 mi) NNE of here earthquakes near Hatillo Municipio
Arecibo Municipio, PR 18 km (11 mi) NNW of here earthquakes near Arecibo Municipio
Camuy Municipio, PR 22 km (13 mi) NE of here earthquakes near Camuy Municipio
Barceloneta Municipio, PR 22 km (14 mi) NW of here earthquakes near Barceloneta Municipio
Quebradillas Municipio, PR 25 km (16 mi) ENE of here earthquakes near Quebradillas Municipio
Manatí Municipio, PR 30 km (18 mi) WNW of here earthquakes near Manatí Municipio

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

Aftershocks so far

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

  1. 2.7 4 km SE of Morovis, Puerto Rico
  2. 3.1 59 km N of Hatillo, Puerto Rico
  3. 2.4 5 km ESE of Las Marías, Puerto Rico
  4. 2.9 21 km NNW of Camuy, Puerto Rico
  5. 3.2 17 km N of Tierras Nuevas Poniente, Puerto Rico
  6. 3.0 4 km NNW of Vega Baja, Puerto Rico
  7. 2.0 11 km SSE of Lares, Puerto Rico
  8. 2.8 14 km NNE of Hatillo, Puerto Rico
  9. 2.4 2 km WNW of San Sebastián, Puerto Rico
  10. 2.9 16 km NNW of San Antonio, Puerto Rico
  11. 2.9 22 km N of Arecibo, Puerto Rico
  12. 2.9 46 km N of Isabela, Puerto Rico
  13. 2.0 2 km SW of Lares, Puerto Rico
  14. 3.5 3 km S of Animas, Puerto Rico
  15. 2.7 13 km N of Isabela, 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 4.4 on 2018-12-09 — it released about 1,600 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.