QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Esperanza, PR

No earthquake was likely felt in Esperanza in the 24 hours to 9:34 am AST (13:34 UTC). The last one was M 2.9, 23 km (14 mi) SE, at 12:08 pm AST on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Esperanza

This page: a magnitude 3.1 earthquake was recorded 15 km (9 mi) south-southeast of Esperanza, PR, at 8:28 am AST on 26 August 2026 (12:28 UTC), 6.2 km deep.

USGS: 14 km SSE of Esperanza, Puerto Rico

83 km (51 mi) SE of San Juan, PR

8:28 am AST, Aug 26, 2026 · · 6.2 km deep · released about 1,300 lb of TNT

Every earthquake near Esperanza Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vieques Municipio 17 kmCeiba Municipio 38 kmCulebra Municipio 42 kmHumacao Municipio 42 kmNaguabo Municipio 42 kmYabucoa Municipio 47 kmFajardo Municipio 49 kmMaunabo Municipio 50 kmLas Piedras Municipio 53 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
8:28 am AST on 26 August 2026 ()
Where
15 km (9 mi) south-southeast of Esperanza, PR · earthquakes near Esperanza
Magnitude
M 3.1 (md)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 17 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 77 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 41 km (25 mi) from the epicentre. In Esperanza, 15 km away, the estimate is intensity III (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: Esperanza 15 km, intensity III · Isabel Segunda 20 km, intensity II · Aguas Claras 40 km, intensity II · Culebra 40 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 4.8 on 2021-10-08 — about 350 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 17.9688, -65.4287. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Vieques Municipio, PR 17 km (11 mi) N earthquakes near Vieques Municipio
Ceiba Municipio, PR 38 km (23 mi) NNW earthquakes near Ceiba Municipio
Culebra Municipio, PR 42 km (26 mi) NNE earthquakes near Culebra Municipio
Humacao Municipio, PR 42 km (26 mi) WNW earthquakes near Humacao Municipio
Naguabo Municipio, PR 42 km (26 mi) NW earthquakes near Naguabo Municipio
Yabucoa Municipio, PR 47 km (29 mi) WNW earthquakes near Yabucoa Municipio

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

Aftershocks so far

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

  1. 2.2 7 km ESE of Emajagua, Puerto Rico
  2. 2.9 22 km SE of Esperanza, Puerto Rico
  3. 2.5 10 km ESE of Esperanza, Puerto Rico
  4. 2.4 16 km SE of Esperanza, Puerto Rico
  5. 4.1 21 km SE of Esperanza, Puerto Rico
  6. 3.3 24 km ESE of Isabel Segunda, Puerto Rico
  7. 2.2 27 km SE of Emajagua, Puerto Rico
  8. 3.0 26 km SE of Emajagua, Puerto Rico
  9. 3.2 40 km SE of Esperanza, Puerto Rico
  10. 2.9 8 km WNW of Culebra, Puerto Rico
  11. 3.1 12 km SE of Emajagua, Puerto Rico
  12. 3.1 16 km SE of Esperanza, Puerto Rico
  13. 3.2 7 km ENE of Fajardo, Puerto Rico
  14. 3.0 28 km SSW of Charlotte Amalie, U.S. Virgin Islands

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.