QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

Earthquake near Camuy, PR

No earthquake was likely felt in Camuy in the 24 hours to 7:58 pm AST (23:58 UTC). The last one was M 3.4, 39 km (25 mi) NNW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Camuy

This page: a magnitude 2.8 earthquake was recorded 14 km (9 mi) north of Camuy, PR, at 12:53 pm AST on 13 September 2016 (16:53 UTC), 18 km deep.

USGS: 13 km N of Camuy, Puerto Rico

87 km (54 mi) WNW of San Juan, PR · 22 km (14 mi) NW of Arecibo, PR

12:53 pm AST, Sep 13, 2016 · · 18 km deep · released about 480 lb of TNT

Every earthquake near Camuy Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 17 kmCamuy Municipio 18 kmHatillo Municipio 20 kmIsabela Municipio 21 kmArecibo Municipio 28 kmAguadilla Municipio 33 kmSan Sebastián Municipio 33 kmMoca Municipio 34 kmBarceloneta 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
12:53 pm AST on 13 September 2016 ()
Where
14 km (9 mi) north of Camuy, PR · earthquakes near Camuy
Magnitude
M 2.8 (Md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 17 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3627 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. In Camuy, 14 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Hatillo 14 km, intensity II · Quebradillas 17 km, intensity II · Isabela 21 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 480 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 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 45 km N of San Antonio, Puerto Rico · 43 km NW of this epicentre
  2. 7.1 24 km NNW of San Antonio, Puerto Rico · 36 km WNW of this epicentre
  3. 6.4 61 km N of Hatillo, Puerto Rico · 49 km N of this epicentre
  4. 6.3 6 km WNW of Aguadilla, Puerto Rico · 41 km WSW of this epicentre
  5. 6.1 15 km WNW of San Antonio, Puerto Rico · 39 km W of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.6079, -66.8645. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Quebradillas Municipio, PR 17 km (11 mi) SSW earthquakes near Quebradillas Municipio
Camuy Municipio, PR 18 km (11 mi) S earthquakes near Camuy Municipio
Hatillo Municipio, PR 20 km (12 mi) SSE earthquakes near Hatillo Municipio
Isabela Municipio, PR 21 km (13 mi) SW earthquakes near Isabela Municipio
Arecibo Municipio, PR 28 km (17 mi) SE earthquakes near Arecibo Municipio
Aguadilla Municipio, PR 33 km (20 mi) WSW earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 2.3 14 km N of Arecibo, Puerto Rico
  2. 2.9 33 km NW of San Antonio, Puerto Rico
  3. 2.4 Puerto Rico region
  4. 3.4 2 km S of La Alianza, Puerto Rico
  5. 2.3 15 km NNE of Isabela, Puerto Rico
  6. 3.0 60 km N of Hatillo, Puerto Rico
  7. 3.1 23 km NNW of Camuy, Puerto Rico
  8. 2.8 25 km NNE of Arecibo, Puerto Rico
  9. 2.7 15 km N of Garrochales, Puerto Rico
  10. 2.7 13 km N of Arecibo, Puerto Rico
  11. 3.2 2 km NNW of Hatillo, Puerto Rico
  12. 2.4 17 km N of Camuy, Puerto Rico
  13. 2.4 15 km NNE of Carrizales, Puerto Rico
  14. 2.7 10 km NNE of Arecibo, Puerto Rico
  15. 3.0 23 km N of Hatillo, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.