QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Aguas Claras, PR

No earthquake was likely felt in Aguas Claras in the 24 hours to 10:48 am AST (14:48 UTC). The last one was M 4.1, 47 km (29 mi) SE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Aguas Claras

This page: a magnitude 1.8 earthquake was recorded 10 km (6 mi) east-southeast of Aguas Claras, PR, at 1:42 pm AST on 24 June 2017 (17:42 UTC), 20 km deep.

USGS: 10 km ESE of Aguas Claras, Puerto Rico

57 km (35 mi) ESE of San Juan, PR · 49 km (31 mi) ESE of Carolina, PR

1:42 pm AST, Jun 24, 2017 · · 20 km deep · released about 14 lb of TNT

Every earthquake near Aguas Claras Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ceiba Municipio 8 kmVieques Municipio 17 kmNaguabo Municipio 18 kmFajardo Municipio 21 kmLuquillo Municipio 24 kmHumacao Municipio 24 kmRío Grande Municipio 31 kmCulebra Municipio 31 kmLas Piedras Municipio 32 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
1:42 pm AST on 24 June 2017 ()
Where
10 km (6 mi) east-southeast of Aguas Claras, PR · earthquakes near Aguas Claras
Magnitude
M 1.8 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Ceiba Municipio, 8 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3427 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Aguas Claras, 10 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: Daguao, Luis M. Cintron, Isabel Segunda, Esperanza, Fajardo, Naguabo.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 4.6 on 2016-12-05 — about 17,000 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 18.2026, -65.5703. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ceiba Municipio, PR 8 km (5 mi) NW earthquakes near Ceiba Municipio
Vieques Municipio, PR 17 km (11 mi) ESE earthquakes near Vieques Municipio
Naguabo Municipio, PR 18 km (11 mi) W earthquakes near Naguabo Municipio
Fajardo Municipio, PR 21 km (13 mi) N earthquakes near Fajardo Municipio
Luquillo Municipio, PR 24 km (15 mi) NW earthquakes near Luquillo Municipio
Humacao Municipio, PR 24 km (15 mi) WSW earthquakes near Humacao Municipio

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

Aftershocks so far

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

  1. 2.5 18 km NNE of Playa Fortuna, Puerto Rico
  2. 1.8 7 km SE of Culebra, Puerto Rico
  3. 2.6 22 km NNE of Playa Fortuna, Puerto Rico
  4. 2.6 15 km S of Esperanza, Puerto Rico
  5. 2.4 24 km NNE of Luquillo, Puerto Rico
  6. 2.0 29 km NNE of Luquillo, Puerto Rico
  7. 2.1 16 km S of Esperanza, Puerto Rico
  8. 2.4 10 km SE of Esperanza, Puerto Rico
  9. 2.8 15 km SSE of Esperanza, Puerto Rico
  10. 3.2 Puerto Rico region
  11. 1.7 20 km NNE of Luquillo, Puerto Rico
  12. 2.5 25 km NNE of Luquillo, Puerto Rico
  13. 2.9 16 km SSE of Esperanza, Puerto Rico
  14. 1.9 21 km WSW of Esperanza, Puerto Rico
  15. 3.1 22 km SE of El Negro, 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.