QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

7 km SE of Tallaboa, Puerto Rico

· 5.0 km deep · released about 990 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 9 kmPeñuelas Municipio 11 kmGuayanilla Municipio 15 kmJuana Díaz Municipio 19 kmYauco Municipio 25 kmGuánica Municipio 27 kmAdjuntas Municipio 28 kmVillalba Municipio 29 kmSanta Isabel Municipio 30 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 3.0 (md)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 9 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2335 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 990 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 340,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 990 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 17.9496, -66.6665. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 9 km (5 mi) SW of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 11 km (7 mi) SE of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 15 km (9 mi) ESE of here earthquakes near Guayanilla Municipio
Juana Díaz Municipio, PR 19 km (12 mi) WSW of here earthquakes near Juana Díaz Municipio
Yauco Municipio, PR 25 km (16 mi) SE of here earthquakes near Yauco Municipio
Guánica Municipio, PR 27 km (17 mi) E of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 2.9 2 km SSW of Tallaboa, Puerto Rico
  2. 3.1 5 km SSE of Tallaboa, Puerto Rico
  3. 2.8 3 km SW of Fuig, Puerto Rico
  4. 2.8 11 km SSE of Guánica, Puerto Rico
  5. 2.0 2 km WSW of Guánica, Puerto Rico
  6. 2.4 5 km SE of La Parguera, Puerto Rico
  7. 2.9 8 km SSW of Indios, Puerto Rico
  8. 2.3 8 km S of Indios, Puerto Rico
  9. 2.9 2 km SW of Tallaboa, Puerto Rico
  10. 2.8 10 km SSE of Maria Antonia, Puerto Rico
  11. 2.3 2 km WSW of Tallaboa, Puerto Rico
  12. 2.6 5 km S of Indios, Puerto Rico
  13. 2.9 3 km ESE of Tallaboa, Puerto Rico
  14. 2.5 5 km S of Tallaboa, Puerto Rico
  15. 3.3 7 km S of Tallaboa, 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 120,000 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.