QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Arecibo, PR

No earthquake was likely felt in Arecibo in the 24 hours to 12:57 pm AST (16:57 UTC). The last one was M 3.4, 49 km (31 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Arecibo

This page: a magnitude 2.5 earthquake was recorded 45 km (28 mi) north-northeast of Arecibo, PR, at 1:07 pm AST on 2 June 2017 (17:07 UTC), 43 km deep.

USGS: 44 km N of Garrochales, Puerto Rico

74 km (46 mi) NW of San Juan, PR · 47 km (29 mi) NNE of Arecibo, PR

1:07 pm AST, Jun 2, 2017 · · 43 km deep · released about 200 lb of TNT

Every earthquake near Arecibo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 43 kmManatí Municipio 46 kmArecibo Municipio 48 kmVega Baja Municipio 48 kmHatillo Municipio 51 kmVega Alta Municipio 53 kmFlorida Municipio 54 kmCamuy Municipio 54 kmDorado Municipio 54 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
1:07 pm AST on 2 June 2017 ()
Where
45 km (28 mi) north-northeast of Arecibo, PR · earthquakes near Arecibo
Magnitude
M 2.5 (md)
Depth
43 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 43 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3448 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 it was probably too small to be felt, even directly above it. In Arecibo, 45 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.

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.

For this area

The largest earthquake within 50 km since 2016 was M 4.0 on 2017-03-24 — about 150 times the energy of this one.

Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 61 km N of Hatillo, Puerto Rico · 32 km NW of this epicentre
  2. 5.9 78 km N of Arecibo, Puerto Rico · 36 km N of this epicentre
  3. 5.8 12 km N of Garrochales, Puerto Rico · 32 km S of this epicentre
  4. 5.7 78 km N of Tierras Nuevas Poniente, Puerto Rico · 35 km N of this epicentre
  5. 5.6 57 km N of Isabela, Puerto Rico · 40 km WNW 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 18.8535, -66.5840. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Barceloneta Municipio, PR 43 km (27 mi) S earthquakes near Barceloneta Municipio
Manatí Municipio, PR 46 km (29 mi) SSE earthquakes near Manatí Municipio
Arecibo Municipio, PR 48 km (30 mi) SSW earthquakes near Arecibo Municipio
Vega Baja Municipio, PR 48 km (30 mi) SSE earthquakes near Vega Baja Municipio
Hatillo Municipio, PR 51 km (32 mi) SSW earthquakes near Hatillo Municipio
Vega Alta Municipio, PR 53 km (33 mi) SSE earthquakes near Vega Alta Municipio

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

Aftershocks so far

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

  1. 3.3 70 km N of Hatillo, Puerto Rico
  2. 3.4 68 km N of Hatillo, Puerto Rico
  3. 3.4 68 km N of Hatillo, Puerto Rico
  4. 3.0 66 km N of Hatillo, Puerto Rico
  5. 2.8 45 km N of Hatillo, Puerto Rico
  6. 3.6 67 km N of Hatillo, Puerto Rico
  7. 2.9 66 km N of Hatillo, Puerto Rico
  8. 4.7 70 km N of Hatillo, Puerto Rico
  9. 2.7 15 km NNE of Hatillo, Puerto Rico
  10. 2.6 21 km NNE of Dorado, Puerto Rico
  11. 3.0 10 km NNW of Camuy, Puerto Rico
  12. 2.7 20 km N of Brenas, Puerto Rico
  13. 2.7 51 km N of Carrizales, Puerto Rico
  14. 2.2 26 km N of Arecibo, Puerto Rico
  15. 2.8 33 km N of Tierras Nuevas Poniente, 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.