QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2Md

4 km SSW of Central Aguirre, Puerto Rico

· 15 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salinas Municipio 7 kmGuayama Municipio 13 kmSanta Isabel Municipio 16 kmArroyo Municipio 22 kmCayey Municipio 23 kmAibonito Municipio 24 kmCoamo Municipio 25 kmPatillas Municipio 28 kmJuana Díaz Municipio 28 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 2.2 (Md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Salinas Municipio, 7 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3597 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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 17.9123, -66.2380. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Salinas Municipio, PR 7 km (4 mi) SSE of here earthquakes near Salinas Municipio
Guayama Municipio, PR 13 km (8 mi) WSW of here earthquakes near Guayama Municipio
Santa Isabel Municipio, PR 16 km (10 mi) ESE of here earthquakes near Santa Isabel Municipio
Arroyo Municipio, PR 22 km (14 mi) WSW of here earthquakes near Arroyo Municipio
Cayey Municipio, PR 23 km (14 mi) SSW of here earthquakes near Cayey Municipio
Aibonito Municipio, PR 24 km (15 mi) S of here earthquakes near Aibonito 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. 2.9 11 km S of Emajagua, Puerto Rico
  2. 2.5 1 km WSW of Bairoa, Puerto Rico
  3. 2.6 11 km S of Emajagua, Puerto Rico
  4. 2.4 0 km WNW of Mariano Colón, Puerto Rico
  5. 2.0 10 km S of Emajagua, Puerto Rico
  6. 1.9 10 km S of Emajagua, Puerto Rico
  7. 2.5 11 km S of Emajagua, Puerto Rico
  8. 2.6 9 km S of Emajagua, Puerto Rico
  9. 2.9 10 km S of Emajagua, Puerto Rico
  10. 2.6 10 km S of Emajagua, Puerto Rico
  11. 2.3 8 km SE of Emajagua, Puerto Rico
  12. 2.3 9 km S of Emajagua, Puerto Rico
  13. 2.4 8 km S of Emajagua, Puerto Rico
  14. 2.7 9 km S of Emajagua, Puerto Rico
  15. 2.0 9 km S 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.