QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Maria Antonia, PR

No earthquake was likely felt in Maria Antonia in the 24 hours to 12:55 pm AST (16:55 UTC). The last one was M 2.1, 11 km (7 mi) ENE, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Maria Antonia

This page: a magnitude 2.0 earthquake was recorded 14 km (9 mi) south-southeast of Maria Antonia, PR, at 8:42 pm AST on 18 January 2018 (00:42 UTC), 8.0 km deep.

USGS: 14 km SSE of Maria Antonia, Puerto Rico

27 km (17 mi) SW of Ponce, PR

8:42 pm AST, Jan 18, 2018 · · 8.0 km deep · released about 33 lb of TNT

Every earthquake near Maria Antonia Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 14 kmGuayanilla Municipio 17 kmPeñuelas Municipio 22 kmYauco Municipio 25 kmLajas Municipio 26 kmSabana Grande Municipio 28 kmPonce Municipio 29 kmSan Germán Municipio 35 kmMaricao Municipio 37 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
8:42 pm AST on 18 January 2018 ()
Where
14 km (9 mi) south-southeast of Maria Antonia, PR · earthquakes near Maria Antonia
Magnitude
M 2.0 (md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3219 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Maria Antonia, 14 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Guánica, Indios, Fuig, Palomas, Guayanilla, Magas Arriba.

How big was it?

This earthquake released about 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 17.8590, -66.8343. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 14 km (8 mi) NW earthquakes near Guánica Municipio
Guayanilla Municipio, PR 17 km (10 mi) NNE earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 22 km (14 mi) NNE earthquakes near Peñuelas Municipio
Yauco Municipio, PR 25 km (16 mi) N earthquakes near Yauco Municipio
Lajas Municipio, PR 26 km (16 mi) WNW earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 28 km (17 mi) NNW earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 2.1 10 km SE of Pole Ojea, Puerto Rico
  2. 1.5 1 km SE of La Parguera, Puerto Rico
  3. 1.6 7 km SW of Puerto Real, Puerto Rico
  4. 1.7 0 km ESE of La Parguera, Puerto Rico
  5. 2.0 9 km S of Tallaboa, Puerto Rico
  6. 2.2 6 km SW of Tallaboa, Puerto Rico
  7. 1.7 9 km SSW of Tallaboa, Puerto Rico
  8. 2.2 9 km SSW of Tallaboa, Puerto Rico
  9. 2.2 15 km SSW of Guánica, Puerto Rico
  10. 2.2 4 km NW of Maricao, Puerto Rico
  11. 2.2 13 km SSW of Guánica, Puerto Rico
  12. 2.2 12 km S of Ponce, Puerto Rico
  13. 1.9 6 km SSW of Guánica, Puerto Rico
  14. 2.0 4 km ENE of Hormigueros, Puerto Rico
  15. 1.6 6 km SW of La Parguera, 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.