QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3Md

96 km N of Culebra, Puerto Rico

· 35 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fajardo Municipio 94 kmCulebra Municipio 95 kmLuquillo Municipio 101 kmRío Grande Municipio 105 kmLoíza Municipio 108 kmCeiba Municipio 109 kmCarolina Municipio 114 kmCanóvanas Municipio 115 kmNaguabo 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 2.3 (Md)
Depth
35 km below the surface
Felt
no reports yet
Nearest
Fajardo Municipio, 94 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3455 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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.

Where

Epicentre 19.1772, -65.2666. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fajardo Municipio, PR 94 km (59 mi) NNE of here earthquakes near Fajardo Municipio
Culebra Municipio, PR 95 km (59 mi) N of here earthquakes near Culebra Municipio
Luquillo Municipio, PR 101 km (63 mi) NNE of here earthquakes near Luquillo Municipio
Río Grande Municipio, PR 105 km (65 mi) NNE of here earthquakes near Río Grande Municipio
Loíza Municipio, PR 108 km (67 mi) NE of here earthquakes near Loíza Municipio
Ceiba Municipio, PR 109 km (68 mi) NNE of here earthquakes near Ceiba Municipio

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

Aftershocks so far

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

  1. 2.1 86 km N of Charlotte Amalie, U.S. Virgin Islands
  2. 2.8 92 km N of Charlotte Amalie, U.S. Virgin Islands
  3. 2.3 100 km N of Charlotte Amalie, U.S. Virgin Islands
  4. 2.0 90 km N of Cruz Bay, U.S. Virgin Islands
  5. 3.0 103 km N of Charlotte Amalie, U.S. Virgin Islands
  6. 2.3 101 km N of Culebra, Puerto Rico
  7. 2.4 81 km N of Charlotte Amalie, U.S. Virgin Islands
  8. 2.6 97 km N of Charlotte Amalie, U.S. Virgin Islands
  9. 2.3 103 km N of Charlotte Amalie, U.S. Virgin Islands
  10. 2.0 56 km N of Charlotte Amalie, U.S. Virgin Islands
  11. 3.4 117 km N of Charlotte Amalie, U.S. Virgin Islands
  12. 2.2 83 km NNE of Luquillo, Puerto Rico
  13. 2.4 93 km N of Culebra, Puerto Rico
  14. 2.6 79 km N of Charlotte Amalie, U.S. Virgin Islands
  15. 2.9 78 km NNE of Suárez, 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 4.3 on 2016-09-04 — it released about 1,000 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.