QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

13 km NNE of Arecibo, Puerto Rico

· 17 km deep · released about 230 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 16 kmArecibo Municipio 16 kmHatillo Municipio 21 kmManatí Municipio 23 kmFlorida Municipio 25 kmCamuy Municipio 26 kmVega Baja Municipio 30 kmQuebradillas Municipio 31 kmUtuado Municipio 34 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 2.6 (md)
Depth
17 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Barceloneta Municipio, 16 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 879 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 46,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.1× the energy of this one
  4. This earthquake M 2.6 about 230 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 18.5777, -66.6547. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 16 km (10 mi) NW of here earthquakes near Barceloneta Municipio
Arecibo Municipio, PR 16 km (10 mi) N of here earthquakes near Arecibo Municipio
Hatillo Municipio, PR 21 km (13 mi) NE of here earthquakes near Hatillo Municipio
Manatí Municipio, PR 23 km (14 mi) NW of here earthquakes near Manatí Municipio
Florida Municipio, PR 25 km (16 mi) NNW of here earthquakes near Florida Municipio
Camuy Municipio, PR 26 km (16 mi) NE of here earthquakes near Camuy Municipio

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

Aftershocks so far

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

  1. 2.8 55 km N of Tierras Nuevas Poniente, Puerto Rico
  2. 2.7 26 km N of Hatillo, Puerto Rico
  3. 2.0 6 km W of Orocovis, Puerto Rico
  4. 2.6 29 km N of Brenas, Puerto Rico
  5. 2.8 20 km N of Tierras Nuevas Poniente, Puerto Rico
  6. 3.4 6 km NNW of Vega Baja, Puerto Rico
  7. 2.6 4 km WNW of Orocovis, Puerto Rico
  8. 3.3 6 km WSW of Estancias de Florida, Puerto Rico
  9. 2.5 4 km WNW of San Sebastián, Puerto Rico
  10. 2.7 30 km N of Brenas, Puerto Rico
  11. 2.8 7 km S of Lares, Puerto Rico
  12. 2.9 24 km N of Garrochales, Puerto Rico
  13. 3.0 1 km NNE of Manatí, Puerto Rico
  14. 2.9 16 km N of Quebradillas, Puerto Rico
  15. 2.3 3 km WNW of Orocovis, 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 520 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.