QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

112 km N of Suárez, Puerto Rico

· 16 km deep · released about 1,800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 112 kmSan Juan Municipio 118 kmCataño Municipio 118 kmCarolina Municipio 118 kmToa Baja Municipio 118 kmRío Grande Municipio 118 kmFajardo Municipio 119 kmLuquillo Municipio 119 kmDorado Municipio 120 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 3.2 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 112 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2086 days ago

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

How big was it?

This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 190,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,000× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× more

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 19.4410, -65.7633. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 112 km (70 mi) N of here earthquakes near Loíza Municipio
San Juan Municipio, PR 118 km (73 mi) NNE of here earthquakes near San Juan Municipio
Cataño Municipio, PR 118 km (73 mi) NNE of here earthquakes near Cataño Municipio
Carolina Municipio, PR 118 km (73 mi) N of here earthquakes near Carolina Municipio
Toa Baja Municipio, PR 118 km (74 mi) NNE of here earthquakes near Toa Baja Municipio
Río Grande Municipio, PR 118 km (74 mi) N of here earthquakes near Río Grande Municipio

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

Aftershocks so far

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

  1. 3.5 83 km N of San Juan, Puerto Rico
  2. 3.4 85 km N of San Juan, Puerto Rico
  3. 3.2 80 km N of San Juan, Puerto Rico
  4. 3.5 79 km N of San Juan, Puerto Rico
  5. 3.6 82 km N of San Juan, Puerto Rico
  6. 3.5 113 km N of San Juan, Puerto Rico
  7. 2.5 87 km NNE of Vieques, Puerto Rico
  8. 3.5 81 km N of San Juan, Puerto Rico
  9. 3.3 108 km N of Suárez, Puerto Rico
  10. 3.9 151 km N of San Juan, Puerto Rico
  11. 3.4 103 km N of San Juan, Puerto Rico
  12. 2.9 76 km NNE of San Juan, Puerto Rico
  13. 3.4 114 km N of Culebra, Puerto Rico
  14. 3.5 135 km NNE of Vieques, Puerto Rico
  15. 3.2 80 km N of Loíza, 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 4.0 on 2019-06-21 — it released about 17 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.