QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

Earthquake near Emajagua, PR

No earthquake was likely felt in Emajagua in the 24 hours to 8:31 am AST (12:31 UTC). The last one was M 2.2, 7 km (5 mi) ESE, at 2:59 pm AST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near Emajagua

This page: a magnitude 2.8 earthquake was recorded 14 km (8 mi) south-southeast of Emajagua, PR, at 10:27 am AST on 24 November 2025 (14:27 UTC), 42 km deep.

USGS: 13 km SSE of Emajagua, Puerto Rico

62 km (39 mi) SSE of San Juan, PR · 44 km (27 mi) SSE of Caguas, PR

10:27 am AST, Nov 24, 2025 · · 42 km deep · released about 550 lb of TNT

Every earthquake near Emajagua Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Maunabo Municipio 14 kmYabucoa Municipio 19 kmPatillas Municipio 21 kmArroyo Municipio 25 kmHumacao Municipio 27 kmSan Lorenzo Municipio 33 kmLas Piedras Municipio 33 kmGuayama Municipio 34 kmNaguabo 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
10:27 am AST on 24 November 2025 ()
Where
14 km (8 mi) south-southeast of Emajagua, PR · earthquakes near Emajagua
Magnitude
M 2.8 (md)
Depth
42 km below the surface
Felt
no reports yet
Nearest
Maunabo Municipio, 14 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 352 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 it was probably too small to be felt, even directly above it. In Emajagua, 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: Maunabo, El Negro, Palo Seco, Yabucoa, Playita, Lamboglia.

How big was it?

This earthquake released about 550 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 28,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.8 about 550 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 4.8 on 2021-10-08 — about 870 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 17.8915, -65.8253. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Maunabo Municipio, PR 14 km (9 mi) NNW earthquakes near Maunabo Municipio
Yabucoa Municipio, PR 19 km (12 mi) N earthquakes near Yabucoa Municipio
Patillas Municipio, PR 21 km (13 mi) NW earthquakes near Patillas Municipio
Arroyo Municipio, PR 25 km (15 mi) WNW earthquakes near Arroyo Municipio
Humacao Municipio, PR 27 km (17 mi) N earthquakes near Humacao Municipio
San Lorenzo Municipio, PR 33 km (20 mi) NNW earthquakes near San Lorenzo Municipio

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

Aftershocks so far

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

  1. 2.2 6 km SSE of Salinas, Puerto Rico
  2. 2.5 11 km SSE of Esperanza, Puerto Rico
  3. 2.9 21 km SW of Esperanza, Puerto Rico
  4. 3.7 29 km SSW of Esperanza, Puerto Rico
  5. 2.7 3 km SE of Jobos, Puerto Rico
  6. 1.5 1 km NE of Vázquez, Puerto Rico
  7. 2.1 1 km SE of Aguas Buenas, Puerto Rico
  8. 1.6 2 km ESE of Jobos, Puerto Rico
  9. 2.1 2 km SE of Jobos, Puerto Rico
  10. 2.5 1 km W of Santa Clara, Puerto Rico
  11. 1.5 6 km S of Central Aguirre, Puerto Rico
  12. 2.6 2 km WSW of G. L. Garcia, Puerto Rico
  13. 2.0 2 km SSW of Vázquez, Puerto Rico
  14. 2.0 11 km SSE of Punta Santiago, Puerto Rico
  15. 1.9 0 km SW of G. L. Garcia, 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.