QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

24 km S of Esperanza, Puerto Rico

· 30 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vieques Municipio 28 kmHumacao Municipio 44 kmCeiba Municipio 45 kmYabucoa Municipio 46 kmNaguabo Municipio 47 kmMaunabo Municipio 47 kmCulebra Municipio 53 kmLas Piedras Municipio 55 kmPatillas Municipio 57 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 1.9 (md)
Depth
30 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 28 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2669 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 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 17.8781, -65.4675. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vieques Municipio, PR 28 km (17 mi) S of here earthquakes near Vieques Municipio
Humacao Municipio, PR 44 km (27 mi) SE of here earthquakes near Humacao Municipio
Ceiba Municipio, PR 45 km (28 mi) SSE of here earthquakes near Ceiba Municipio
Yabucoa Municipio, PR 46 km (29 mi) ESE of here earthquakes near Yabucoa Municipio
Naguabo Municipio, PR 47 km (29 mi) SE of here earthquakes near Naguabo Municipio
Maunabo Municipio, PR 47 km (29 mi) ESE of here earthquakes near Maunabo Municipio

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

Aftershocks so far

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

  1. 2.2 8 km SSW of Esperanza, Puerto Rico
  2. 2.9 20 km SSE of Emajagua, Puerto Rico
  3. 3.0 10 km S of Esperanza, Puerto Rico
  4. 3.9 6 km SW of Esperanza, Puerto Rico
  5. 2.8 29 km SSE of Esperanza, Puerto Rico
  6. 1.8 18 km SW of Esperanza, Puerto Rico
  7. 1.9 25 km SW of Esperanza, Puerto Rico
  8. 1.6 14 km WSW of Esperanza, Puerto Rico
  9. 1.8 28 km SE of Emajagua, Puerto Rico
  10. 1.8 27 km SE of Emajagua, Puerto Rico
  11. 1.8 28 km SW of Esperanza, Puerto Rico
  12. 1.9 26 km ESE of El Negro, Puerto Rico
  13. 1.7 25 km SE of Emajagua, Puerto Rico
  14. 2.8 24 km SW of Esperanza, Puerto Rico
  15. 1.7 26 km SE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2016-12-05 — it released about 12,000 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.