QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

9 km NNE of San Antonio, Puerto Rico

· 57 km deep · released about 62 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Isabela Municipio 12 kmAguadilla Municipio 13 kmQuebradillas Municipio 20 kmMoca Municipio 22 kmAguada Municipio 25 kmCamuy Municipio 27 kmSan Sebastián Municipio 30 kmRincón Municipio 32 kmAñasco Municipio 33 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
57 km below the surface
Felt
no reports yet
Nearest
Isabela Municipio, 12 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2967 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 62 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 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 18.5773, -67.0796. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Isabela Municipio, PR 12 km (8 mi) NNW of here earthquakes near Isabela Municipio
Aguadilla Municipio, PR 13 km (8 mi) NNE of here earthquakes near Aguadilla Municipio
Quebradillas Municipio, PR 20 km (13 mi) NW of here earthquakes near Quebradillas Municipio
Moca Municipio, PR 22 km (14 mi) N of here earthquakes near Moca Municipio
Aguada Municipio, PR 25 km (16 mi) NNE of here earthquakes near Aguada Municipio
Camuy Municipio, PR 27 km (17 mi) WNW of here earthquakes near Camuy Municipio

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

Aftershocks so far

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

  1. 2.1 4 km NNW of Mayagüez, Puerto Rico
  2. 2.7 28 km N of Arecibo, Puerto Rico
  3. 1.9 2 km WSW of Stella, Puerto Rico
  4. 2.9 57 km N of San Antonio, Puerto Rico
  5. 2.6 10 km SW of La Playa, Puerto Rico
  6. 2.4 13 km NNE of Arecibo, Puerto Rico
  7. 2.0 11 km SSE of Lares, Puerto Rico
  8. 1.8 0 km E of Maricao, Puerto Rico
  9. 1.7 6 km WSW of Maricao, Puerto Rico
  10. 2.5 6 km NNE of Carrizales, Puerto Rico
  11. 2.5 23 km NW of San Antonio, Puerto Rico
  12. 1.6 5 km NE of Maricao, Puerto Rico
  13. 2.0 5 km WSW of Las Marías, Puerto Rico
  14. 2.8 4 km NNW of Mayagüez, Puerto Rico
  15. 2.3 19 km NW of Aguadilla, 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 2017-10-14 — it released about 1,400 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.