QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Magas Arriba, PR

No earthquake was likely felt in Magas Arriba in the 24 hours to 12:08 pm AST (16:08 UTC). The last one was M 2.1, 2 km (2 mi) W, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Magas Arriba

This page: a magnitude 2.4 earthquake was recorded 3 km (2 mi) east of Magas Arriba, PR, at 5:28 am AST on 21 December 2024 (09:28 UTC), 12 km deep.

USGS: 2 km E of Magas Arriba, Puerto Rico

13 km (8 mi) W of Ponce, PR

5:28 am AST, Dec 21, 2024 · · 12 km deep · released about 130 lb of TNT

Every earthquake near Magas Arriba Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Peñuelas Municipio 2 kmGuayanilla Municipio 6 kmPonce Municipio 14 kmYauco Municipio 15 kmAdjuntas Municipio 19 kmGuánica Municipio 20 kmSabana Grande Municipio 23 kmJuana Díaz Municipio 27 kmMaricao Municipio 27 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
5:28 am AST on 21 December 2024 ()
Where
3 km (2 mi) east of Magas Arriba, PR · earthquakes near Magas Arriba
Magnitude
M 2.4 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 2 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 690 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 18 km (11 mi) from the epicentre. In Magas Arriba, 3 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.

Likely felt in: Magas Arriba 3 km, intensity II · Tallaboa 3 km, intensity II · Guayanilla 5 km, intensity II · Tallaboa Alta 6 km, intensity II · Yauco 12 km, intensity II · Ponce 12 km, intensity II · Adjuntas 17 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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

The largest earthquake within 50 km since 2016 was M 6.4 on 2020-01-07 — about 900,000 times the energy of this one.

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 18.0130, -66.7417. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Peñuelas Municipio, PR 2 km (1 mi) NE earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 6 km (4 mi) W earthquakes near Guayanilla Municipio
Ponce Municipio, PR 14 km (9 mi) E earthquakes near Ponce Municipio
Yauco Municipio, PR 15 km (9 mi) WNW earthquakes near Yauco Municipio
Adjuntas Municipio, PR 19 km (12 mi) N earthquakes near Adjuntas Municipio
Guánica Municipio, PR 20 km (13 mi) WSW 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. 1.8 3 km NW of Tallaboa, Puerto Rico
  2. 2.1 4 km SSW of Guánica, Puerto Rico
  3. 2.1 5 km SSE of Indios, Puerto Rico
  4. 2.3 2 km NNW of Río Cañas Abajo, Puerto Rico
  5. 2.1 2 km NNW of Río Cañas Abajo, Puerto Rico
  6. 2.7 5 km E of La Parguera, Puerto Rico
  7. 3.2 2 km WSW of Río Cañas Abajo, Puerto Rico
  8. 1.8 4 km WSW of Guánica, Puerto Rico
  9. 2.4 4 km SW of Guánica, Puerto Rico
  10. 2.4 3 km NW of Orocovis, Puerto Rico
  11. 2.3 3 km SSW of Tallaboa, Puerto Rico
  12. 2.4 5 km S of Guánica, Puerto Rico
  13. 2.5 5 km S of Guánica, Puerto Rico
  14. 2.2 2 km E of Maria Antonia, Puerto Rico
  15. 3.2 11 km S of Guánica, 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.