QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

20 km N of Carrizales, Puerto Rico

· 5.3 km deep · released about 430 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 26 kmCamuy Municipio 27 kmArecibo Municipio 28 kmQuebradillas Municipio 29 kmBarceloneta Municipio 31 kmIsabela Municipio 34 kmManatí Municipio 38 kmFlorida Municipio 40 kmSan Sebastián Municipio 44 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 2.8 (md)
Depth
5.3 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 26 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 983 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 430 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 25,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.2× the energy of this one
  4. This earthquake M 2.8 about 430 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 18.6697, -66.7618. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 26 km (16 mi) N of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 27 km (17 mi) NNE of here earthquakes near Camuy Municipio
Arecibo Municipio, PR 28 km (17 mi) NNW of here earthquakes near Arecibo Municipio
Quebradillas Municipio, PR 29 km (18 mi) NE of here earthquakes near Quebradillas Municipio
Barceloneta Municipio, PR 31 km (19 mi) NW of here earthquakes near Barceloneta Municipio
Isabela Municipio, PR 34 km (21 mi) NE of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 3.2 12 km NW of San Antonio, Puerto Rico
  2. 3.1 21 km N of Brenas, Puerto Rico
  3. 3.1 11 km NNE of Carrizales, Puerto Rico
  4. 3.1 8 km NNW of Sabana, Puerto Rico
  5. 3.4 8 km N of Arecibo, Puerto Rico
  6. 2.7 17 km N of Hatillo, Puerto Rico
  7. 2.9 25 km NNE of Arecibo, Puerto Rico
  8. 3.1 50 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 3.3 10 km NNE of Carrizales, Puerto Rico
  10. 3.4 18 km N of Arecibo, Puerto Rico
  11. 2.9 14 km N of Carrizales, Puerto Rico
  12. 2.9 27 km N of Tierras Nuevas Poniente, Puerto Rico
  13. 3.0 27 km NNW of Brenas, Puerto Rico
  14. 2.7 32 km N of Arecibo, Puerto Rico
  15. 3.1 7 km NNE of Utuado, 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 280 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.