QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

118 km N of Suárez, Puerto Rico

Yes. A magnitude 2.7 earthquake was recorded 118 km N of Suárez, Puerto Rico, at 11:43 am AST on 14 April 2019 (15:43 UTC), 49 km deep.

· 49 km deep · released about 350 lb of TNT

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10 km30 km60 km120 km N Loíza Municipio 118 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
49 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 118 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2701 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

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

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.1 122 km NNE of Vieques, Puerto Rico · 45 km E of this epicentre
  2. 5.1 92 km N of Suárez, Puerto Rico · 26 km S 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 19.4906, -65.7356. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Loíza Municipio, PR 118 km (73 mi) S earthquakes near Loíza Municipio
San Juan Municipio, PR 124 km (77 mi) SSW earthquakes near San Juan Municipio
Cataño Municipio, PR 124 km (77 mi) SSW earthquakes near Cataño Municipio
Toa Baja Municipio, PR 125 km (77 mi) SSW earthquakes near Toa Baja Municipio
Dorado Municipio, PR 126 km (78 mi) SSW earthquakes near Dorado Municipio
Vega Alta Municipio, PR 133 km (83 mi) SSW earthquakes near Vega Alta Municipio

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

Aftershocks so far

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

  1. 3.1 144 km NNE of Vieques, Puerto Rico
  2. 3.4 138 km NNE of Vieques, Puerto Rico
  3. 3.7 133 km NNE of Vieques, Puerto Rico
  4. 3.5 118 km NNE of Vieques, Puerto Rico
  5. 3.5 Puerto Rico region
  6. 3.0 78 km NNE of Vieques, Puerto Rico
  7. 2.9 127 km NNE of Vieques, Puerto Rico
  8. 2.7 137 km NNE of Vieques, Puerto Rico
  9. 2.4 117 km NNE of Suárez, Puerto Rico
  10. 2.4 117 km NNE of Vieques, Puerto Rico
  11. 3.3 144 km NNE of Vieques, Puerto Rico
  12. 3.0 Puerto Rico region
  13. 2.6 141 km NNE of Vieques, Puerto Rico
  14. 3.3 142 km NNE of Vieques, Puerto Rico
  15. 3.2 142 km NNE of Vieques, 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.