QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

9 km WSW of Mayagüez, Puerto Rico

· 22 km deep · released about 60 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 11 kmAñasco Municipio 17 kmCabo Rojo Municipio 18 kmSan Germán Municipio 20 kmRincón Municipio 20 kmAguada Municipio 24 kmLas Marías Municipio 26 kmLajas Municipio 27 kmMoca 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
22 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 11 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2693 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 18.1583, -67.2148. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 11 km (7 mi) WNW of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 17 km (10 mi) SSW of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) NNW of here earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 20 km (12 mi) WNW of here earthquakes near San Germán Municipio
Rincón Municipio, PR 20 km (13 mi) S of here earthquakes near Rincón Municipio
Aguada Municipio, PR 24 km (15 mi) S of here earthquakes near Aguada Municipio

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

Aftershocks so far

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

  1. 2.0 5 km SW of Adjuntas, Puerto Rico
  2. 2.4 5 km NE of Sabana Grande, Puerto Rico
  3. 1.8 7 km NE of Sabana Grande, Puerto Rico
  4. 2.0 5 km NNE of Sabana Grande, Puerto Rico
  5. 1.8 12 km WNW of Puerto Real, Puerto Rico
  6. 2.2 5 km NE of Sabana Grande, Puerto Rico
  7. 1.8 3 km NE of Sabana Grande, Puerto Rico
  8. 2.7 3 km N of Juncal, Puerto Rico
  9. 2.2 2 km WSW of Maricao, Puerto Rico
  10. 2.3 28 km W of Puerto Real, Puerto Rico
  11. 2.6 6 km SE of Aceitunas, Puerto Rico
  12. 1.9 6 km W of Maricao, Puerto Rico
  13. 2.1 Mona Passage
  14. 1.9 5 km W of Las Marías, Puerto Rico
  15. 2.3 26 km WNW of Rincón, 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.