QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

76 km N of Arecibo, Puerto Rico

Yes. A magnitude 2.7 earthquake was recorded 76 km N of Arecibo, Puerto Rico, at 4:02 am AST on 15 February 2019 (08:02 UTC), 34 km deep.

· 34 km deep · released about 350 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 76 kmManatí Municipio 80 kmVega Baja Municipio 81 kmArecibo Municipio 81 kmHatillo Municipio 83 kmDorado Municipio 83 kmCamuy Municipio 84 kmVega Alta Municipio 84 kmQuebradillas Municipio 85 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 2.7 (md)
Depth
34 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 76 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2826 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. 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 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 4.8 on 2017-08-18 — about 1,400 times the energy of this one.

Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 61 km N of Hatillo, Puerto Rico · 27 km WSW of this epicentre
  2. 6.0 81 km N of Isabela, Puerto Rico · 36 km WNW of this epicentre
  3. 5.9 78 km N of Arecibo, Puerto Rico · 7 km WNW of this epicentre
  4. 5.7 78 km N of Tierras Nuevas Poniente, Puerto Rico · 3 km ENE of this epicentre
  5. 5.6 57 km N of Isabela, Puerto Rico · 39 km WSW 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 19.1571, -66.5873. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Barceloneta Municipio, PR 76 km (48 mi) S earthquakes near Barceloneta Municipio
Manatí Municipio, PR 80 km (50 mi) S earthquakes near Manatí Municipio
Vega Baja Municipio, PR 81 km (50 mi) SSE earthquakes near Vega Baja Municipio
Arecibo Municipio, PR 81 km (50 mi) S earthquakes near Arecibo Municipio
Hatillo Municipio, PR 83 km (51 mi) SSW earthquakes near Hatillo Municipio
Dorado Municipio, PR 83 km (52 mi) SSE earthquakes near Dorado Municipio

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

Aftershocks so far

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

  1. 2.8 68 km N of Brenas, Puerto Rico
  2. 2.6 46 km N of Isabela, Puerto Rico
  3. 2.1 46 km N of Isabela, Puerto Rico
  4. 2.6 46 km NNE of Isabela, Puerto Rico
  5. 2.8 78 km N of San Juan, Puerto Rico
  6. 2.4 69 km N of Tierras Nuevas Poniente, Puerto Rico
  7. 2.8 30 km NNE of Carrizales, Puerto Rico
  8. 2.9 66 km N of Hatillo, Puerto Rico
  9. 3.2 114 km N of Brenas, Puerto Rico
  10. 2.6 49 km N of Brenas, Puerto Rico
  11. 2.9 86 km N of Arecibo, Puerto Rico
  12. 2.8 78 km N of Tierras Nuevas Poniente, Puerto Rico
  13. 3.2 87 km N of Arecibo, Puerto Rico
  14. 2.7 77 km N of Tierras Nuevas Poniente, Puerto Rico
  15. 2.4 87 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.