QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0Md

31 km SE of Esperanza, Puerto Rico

· 9.0 km deep · released about 950 lb of TNT

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10 km30 km60 km120 km N Vieques Municipio 31 kmCulebra Municipio 48 kmCeiba Municipio 55 kmNaguabo Municipio 61 kmHumacao Municipio 62 kmFajardo Municipio 65 kmYabucoa Municipio 66 kmMaunabo Municipio 68 kmLuquillo Municipio 71 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 3.0 (Md)
Depth
9.0 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 31 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3490 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 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 17.8950, -65.2622. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vieques Municipio, PR 31 km (19 mi) SE of here earthquakes near Vieques Municipio
Culebra Municipio, PR 48 km (30 mi) S of here earthquakes near Culebra Municipio
Ceiba Municipio, PR 55 km (34 mi) SE of here earthquakes near Ceiba Municipio
Naguabo Municipio, PR 61 km (38 mi) SE of here earthquakes near Naguabo Municipio
Humacao Municipio, PR 62 km (38 mi) ESE of here earthquakes near Humacao Municipio
Fajardo Municipio, PR 65 km (40 mi) SSE of here earthquakes near Fajardo Municipio

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

Aftershocks so far

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

  1. 2.3 15 km ESE of Esperanza, Puerto Rico
  2. 2.4 20 km SE of El Negro, Puerto Rico
  3. 2.4 23 km SE of El Negro, Puerto Rico
  4. 2.2 22 km SSW of Esperanza, Puerto Rico
  5. 1.8 9 km SSE of Esperanza, Puerto Rico
  6. 2.4 29 km SE of El Negro, Puerto Rico
  7. 2.2 29 km SE of El Negro, Puerto Rico
  8. 2.5 13 km ESE of Esperanza, Puerto Rico
  9. 1.9 4 km SSE of Esperanza, Puerto Rico
  10. 2.5 Puerto Rico region
  11. 2.6 33 km SE of Emajagua, Puerto Rico
  12. 2.0 20 km S of Charlotte Amalie, U.S. Virgin Islands
  13. 2.7 29 km SE of El Negro, Puerto Rico
  14. 2.5 31 km SSW of Esperanza, Puerto Rico
  15. 2.7 29 km SE of El Negro, 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 2016-09-02 — it released about 89 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.