QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

15 km N of Arecibo, Puerto Rico

· 20 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Arecibo Municipio 20 kmBarceloneta Municipio 21 kmHatillo Municipio 22 kmCamuy Municipio 26 kmManatí Municipio 28 kmQuebradillas Municipio 30 kmFlorida Municipio 30 kmVega Baja Municipio 36 kmIsabela Municipio 37 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 2.5 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Arecibo Municipio, 20 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 861 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 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 18.6140, -66.6913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arecibo Municipio, PR 20 km (12 mi) N of here earthquakes near Arecibo Municipio
Barceloneta Municipio, PR 21 km (13 mi) NW of here earthquakes near Barceloneta Municipio
Hatillo Municipio, PR 22 km (14 mi) NNE of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 26 km (16 mi) NE of here earthquakes near Camuy Municipio
Manatí Municipio, PR 28 km (17 mi) NW of here earthquakes near Manatí Municipio
Quebradillas Municipio, PR 30 km (19 mi) ENE of here earthquakes near Quebradillas Municipio

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

Aftershocks so far

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

  1. 2.5 4 km NW of Orocovis, Puerto Rico
  2. 3.0 6 km ESE of Las Marías, Puerto Rico
  3. 2.6 3 km NW of Orocovis, Puerto Rico
  4. 2.8 55 km N of Tierras Nuevas Poniente, Puerto Rico
  5. 2.7 26 km N of Hatillo, Puerto Rico
  6. 2.0 6 km W of Orocovis, Puerto Rico
  7. 2.6 29 km N of Brenas, Puerto Rico
  8. 2.8 20 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 3.4 6 km NNW of Vega Baja, Puerto Rico
  10. 2.6 4 km WNW of Orocovis, Puerto Rico
  11. 3.3 6 km WSW of Estancias de Florida, Puerto Rico
  12. 2.5 4 km WNW of San Sebastián, Puerto Rico
  13. 2.7 30 km N of Brenas, Puerto Rico
  14. 2.8 7 km S of Lares, Puerto Rico
  15. 2.9 24 km N of Garrochales, 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 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.