QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

2 km ESE of Espino, Puerto Rico

· 15 km deep · released about 530 lb of TNT

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10 km30 km60 km120 km N Añasco Municipio 5 kmMoca Municipio 13 kmLas Marías Municipio 13 kmHormigueros Municipio 14 kmSan Sebastián Municipio 15 kmAguada Municipio 16 kmSan Germán Municipio 18 kmRincón Municipio 18 kmMaricao Municipio 20 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 2.8 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Añasco Municipio, 5 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1031 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 530 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 29,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 20,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.8× the energy of this one
  4. This earthquake M 2.8 about 530 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 18.2628, -67.0958. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Añasco Municipio, PR 5 km (3 mi) SE of here earthquakes near Añasco Municipio
Moca Municipio, PR 13 km (8 mi) S of here earthquakes near Moca Municipio
Las Marías Municipio, PR 13 km (8 mi) WNW of here earthquakes near Las Marías Municipio
Hormigueros Municipio, PR 14 km (9 mi) N of here earthquakes near Hormigueros Municipio
San Sebastián Municipio, PR 15 km (10 mi) WSW of here earthquakes near San Sebastián Municipio
Aguada Municipio, PR 16 km (10 mi) SE of here earthquakes near Aguada Municipio

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

Aftershocks so far

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

  1. 2.3 5 km WSW of Guánica, Puerto Rico
  2. 2.3 11 km SSE of Maria Antonia, Puerto Rico
  3. 2.0 9 km SSE of Maria Antonia, Puerto Rico
  4. 3.9 6 km WSW of Guánica, Puerto Rico
  5. 2.4 3 km SW of La Parguera, Puerto Rico
  6. 2.8 6 km SE of Maria Antonia, Puerto Rico
  7. 2.6 6 km SSE of Maria Antonia, Puerto Rico
  8. 2.4 7 km SSE of Maria Antonia, Puerto Rico
  9. 2.7 8 km SSE of Maria Antonia, Puerto Rico
  10. 2.4 9 km SSE of Maria Antonia, Puerto Rico
  11. 2.4 0 km NE of Indios, Puerto Rico
  12. 2.7 10 km SSE of Maria Antonia, Puerto Rico
  13. 2.4 8 km ESE of La Parguera, Puerto Rico
  14. 3.0 6 km SE of Maria Antonia, Puerto Rico
  15. 2.4 2 km NNW of Indios, 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 6.4 on 2020-01-07 — it released about 230,000 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.