QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

14 km WSW of Esperanza, Puerto Rico

· 5.0 km deep · released about 6.4 lb of TNT

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10 km30 km60 km120 km N Vieques Municipio 19 kmCeiba Municipio 21 kmHumacao Municipio 21 kmNaguabo Municipio 21 kmYabucoa Municipio 27 kmLas Piedras Municipio 31 kmMaunabo Municipio 32 kmLuquillo Municipio 35 kmFajardo Municipio 35 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 1.6 (md)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 19 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2547 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 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 18.0683, -65.6038. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vieques Municipio, PR 19 km (12 mi) WSW of here earthquakes near Vieques Municipio
Ceiba Municipio, PR 21 km (13 mi) S of here earthquakes near Ceiba Municipio
Humacao Municipio, PR 21 km (13 mi) ESE of here earthquakes near Humacao Municipio
Naguabo Municipio, PR 21 km (13 mi) SE of here earthquakes near Naguabo Municipio
Yabucoa Municipio, PR 27 km (17 mi) E of here earthquakes near Yabucoa Municipio
Las Piedras Municipio, PR 31 km (19 mi) ESE of here earthquakes near Las Piedras Municipio

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

Aftershocks so far

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

  1. 2.9 28 km SSW of Esperanza, Puerto Rico
  2. 2.9 33 km SE of Emajagua, Puerto Rico
  3. 3.1 27 km SE of Emajagua, Puerto Rico
  4. 2.5 34 km SSE of Emajagua, Puerto Rico
  5. 3.3 26 km SE of El Negro, Puerto Rico
  6. 2.2 1 km E of Candelero Arriba, Puerto Rico
  7. 2.8 25 km SE of Emajagua, Puerto Rico
  8. 3.0 13 km NNW of Isabel Segunda, Puerto Rico
  9. 2.7 24 km SE of Emajagua, Puerto Rico
  10. 3.1 23 km SW of Esperanza, Puerto Rico
  11. 3.1 15 km SW of Esperanza, Puerto Rico
  12. 2.4 21 km SE of Emajagua, Puerto Rico
  13. 2.9 23 km SE of Emajagua, Puerto Rico
  14. 3.0 21 km SE of El Negro, Puerto Rico
  15. 3.2 21 km S of Esperanza, 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 4.6 on 2016-12-05 — it released about 38,000 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.