QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

Earthquake near Hatillo, PR

No earthquake was likely felt in Hatillo in the 24 hours to 10:10 am AST (14:10 UTC). The last one was M 3.4, 40 km (25 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Hatillo

This page: a magnitude 2.8 earthquake was recorded 25 km (15 mi) north of Hatillo, PR, at 4:25 am AST on 7 December 2022 (08:25 UTC), 58 km deep.

USGS: 24 km N of Hatillo, Puerto Rico

83 km (52 mi) WNW of San Juan, PR · 29 km (18 mi) N of Arecibo, PR

4:25 am AST, Dec 7, 2022 · · 58 km deep · released about 490 lb of TNT

Every earthquake near Hatillo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 30 kmCamuy Municipio 30 kmQuebradillas Municipio 31 kmArecibo Municipio 33 kmIsabela Municipio 34 kmBarceloneta Municipio 36 kmManatí Municipio 43 kmFlorida Municipio 44 kmAguadilla Municipio 45 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
4:25 am AST on 7 December 2022 ()
Where
25 km (15 mi) north of Hatillo, PR · earthquakes near Hatillo
Magnitude
M 2.8 (md)
Depth
58 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 30 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1435 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 Hatillo, 25 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: Carrizales, Camuy, Arecibo, Corcovado.

How big was it?

This earthquake released about 490 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 31,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 490 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 4.7 on 2017-07-17 — about 600 times the energy of this one.

Before 2016, the USGS record lists 14 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 45 km N of San Antonio, Puerto Rico · 41 km WNW of this epicentre
  2. 7.1 24 km NNW of San Antonio, Puerto Rico · 42 km W of this epicentre
  3. 6.4 61 km N of Hatillo, Puerto Rico · 37 km N of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 50 km WSW of this epicentre
  5. 6.1 18 km NNW of San Antonio, Puerto Rico · 42 km W 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 18.7072, -66.7877. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hatillo Municipio, PR 30 km (18 mi) S earthquakes near Hatillo Municipio
Camuy Municipio, PR 30 km (19 mi) SSW earthquakes near Camuy Municipio
Quebradillas Municipio, PR 31 km (19 mi) SSW earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 33 km (20 mi) SSE earthquakes near Arecibo Municipio
Isabela Municipio, PR 34 km (21 mi) SW earthquakes near Isabela Municipio
Barceloneta Municipio, PR 36 km (22 mi) SE earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 3.0 27 km N of Hatillo, Puerto Rico
  2. 3.1 38 km NNW of San Antonio, Puerto Rico
  3. 2.9 Puerto Rico region
  4. 3.4 40 km N of San Antonio, Puerto Rico
  5. 3.1 5 km N of Garrochales, Puerto Rico
  6. 3.3 47 km N of Arecibo, Puerto Rico
  7. 2.4 Puerto Rico region
  8. 3.5 48 km NNW of San Antonio, Puerto Rico
  9. 3.6 11 km NNE of Hatillo, Puerto Rico
  10. 3.2 Puerto Rico region
  11. 2.9 Puerto Rico region
  12. 2.2 3 km ENE of Carrizales, Puerto Rico
  13. 2.9 20 km N of Isabela, Puerto Rico
  14. 3.4 38 km N of San Antonio, Puerto Rico
  15. 3.3 68 km N of Tierras Nuevas Poniente, 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.