QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Aguada, PR

No earthquake was likely felt in Aguada in the 24 hours to 11:33 pm AST (03:33 UTC). The last one was M 3.5, 7 km (5 mi) ENE, at 12:03 am AST on 6 November 2026, estimated intensity II (weak) in town. Every earthquake near Aguada

This page: a magnitude 2.5 earthquake was recorded 49 km (30 mi) west of Aguada, PR, at 1:59 pm AST on 24 October 2018 (17:59 UTC), 13 km deep.

USGS: 43 km WNW of Rincón, Puerto Rico

60 km (37 mi) WNW of Mayagüez, PR · 119 km (74 mi) WNW of Ponce, PR

1:59 pm AST, Oct 24, 2018 · · 13 km deep · released about 200 lb of TNT

Every earthquake near Aguada Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 43 kmMayagüez Municipio 48 kmAguada Municipio 49 kmAguadilla Municipio 53 kmAñasco Municipio 57 kmMoca Municipio 60 kmHormigueros Municipio 66 kmIsabela Municipio 67 kmCabo Rojo Municipio 70 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
1:59 pm AST on 24 October 2018 ()
Where
49 km (30 mi) west of Aguada, PR · earthquakes near Aguada
Magnitude
M 2.5 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 43 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2940 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 19 km (12 mi) from the epicentre. In Aguada, 49 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.

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 4.4 on 2017-10-01 — about 600 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 32 km NW of Aguadilla, Puerto Rico · 33 km NE of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 45 km E of this epicentre
  3. 6.3 58 km E of Punta Cana, Dominican Republic · 23 km WNW of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 45 km ENE of this epicentre
  5. 5.8 33 km NW of San Antonio, Puerto Rico · 45 km NE of this epicentre

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 18.4455, -67.6448. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 43 km (27 mi) ESE earthquakes near Rincón Municipio
Mayagüez Municipio, PR 48 km (30 mi) SSW earthquakes near Mayagüez Municipio
Aguada Municipio, PR 49 km (30 mi) E earthquakes near Aguada Municipio
Aguadilla Municipio, PR 53 km (33 mi) E earthquakes near Aguadilla Municipio
Añasco Municipio, PR 57 km (35 mi) ESE earthquakes near Añasco Municipio
Moca Municipio, PR 60 km (37 mi) E earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.5 39 km NW of Rincón, Puerto Rico
  2. 3.1 67 km SE of Punta Cana, Dominican Republic
  3. 3.0 44 km NW of San Antonio, Puerto Rico
  4. 2.5 18 km WNW of Rincón, Puerto Rico
  5. 3.0 65 km SE of Punta Cana, Dominican Republic
  6. 2.6 75 km NW of Rincón, Puerto Rico
  7. 2.9 45 km NW of Aguadilla, Puerto Rico
  8. 2.7 49 km ESE of Punta Cana, Dominican Republic
  9. 2.4 30 km NW of San Antonio, Puerto Rico
  10. 3.1 47 km SE of Punta Cana, Dominican Republic
  11. 2.1 34 km WNW of Rincón, Puerto Rico
  12. 3.2 73 km WSW of Stella, Puerto Rico
  13. 3.3 64 km ESE of Punta Cana, Dominican Republic
  14. 2.8 37 km NW of Rincón, Puerto Rico
  15. 2.8 52 km NW of San Antonio, 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.