QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

3 km ENE of Vieques, Puerto Rico

· 11 km deep · released about 9.3 lb of TNT

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10 km30 km60 km120 km N Río Grande Municipio 6 kmLuquillo Municipio 12 kmCanóvanas Municipio 15 kmLoíza Municipio 15 kmCarolina Municipio 18 kmFajardo Municipio 23 kmTrujillo Alto Municipio 24 kmNaguabo Municipio 26 kmJuncos Municipio 26 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 1.7 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Río Grande Municipio, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2739 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 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 18.4343, -65.8005. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Río Grande Municipio, PR 6 km (4 mi) N of here earthquakes near Río Grande Municipio
Luquillo Municipio, PR 12 km (8 mi) NW of here earthquakes near Luquillo Municipio
Canóvanas Municipio, PR 15 km (9 mi) NE of here earthquakes near Canóvanas Municipio
Loíza Municipio, PR 15 km (9 mi) E of here earthquakes near Loíza Municipio
Carolina Municipio, PR 18 km (11 mi) ENE of here earthquakes near Carolina Municipio
Fajardo Municipio, PR 23 km (14 mi) WNW of here earthquakes near Fajardo Municipio

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

Aftershocks so far

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

  1. 2.8 43 km N of Suárez, Puerto Rico
  2. 2.7 3 km E of Ceiba, Puerto Rico
  3. 2.1 9 km NNW of Levittown, Puerto Rico
  4. 2.5 36 km NNE of Suárez, Puerto Rico
  5. 1.9 20 km NNE of Luquillo, Puerto Rico
  6. 2.1 2 km ENE of Celada, Puerto Rico
  7. 2.2 44 km NE of Luquillo, Puerto Rico
  8. 1.8 11 km NNW of San Juan, Puerto Rico
  9. 2.1 37 km NNW of Culebra, Puerto Rico
  10. 1.7 5 km E of San Juan, Puerto Rico
  11. 2.3 6 km NW of Trujillo Alto, Puerto Rico
  12. 2.4 0 km E of Río Lajas, Puerto Rico
  13. 1.8 12 km N of San Juan, Puerto Rico
  14. 2.7 2 km NNE of Levittown, Puerto Rico
  15. 2.3 5 km ESE of Emajagua, 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.