QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Punta Santiago, PR

No earthquake was likely felt in Punta Santiago in the 24 hours to 4:30 pm AST (20:30 UTC). The last one was M 4.1, 49 km (31 mi) ESE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Punta Santiago

This page: a magnitude 2.0 earthquake was recorded 12 km (7 mi) south-southeast of Punta Santiago, PR, at 12:24 pm AST on 22 March 2026 (16:24 UTC), 33 km deep.

USGS: 11 km SSE of Punta Santiago, Puerto Rico

54 km (33 mi) SE of San Juan, PR · 41 km (25 mi) ESE of Caguas, PR

12:24 pm AST, Mar 22, 2026 · · 33 km deep · released about 33 lb of TNT

Every earthquake near Punta Santiago Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Humacao Municipio 12 kmNaguabo Municipio 16 kmYabucoa Municipio 18 kmCeiba Municipio 21 kmLas Piedras Municipio 23 kmMaunabo Municipio 23 kmVieques Municipio 28 kmJuncos Municipio 28 kmSan Lorenzo Municipio 31 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
12:24 pm AST on 22 March 2026 ()
Where
12 km (7 mi) south-southeast of Punta Santiago, PR · earthquakes near Punta Santiago
Magnitude
M 2.0 (md)
Depth
33 km below the surface
Felt
no reports yet
Nearest
Humacao Municipio, 12 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 234 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 Punta Santiago, 12 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: Bajandas, Candelero Arriba, Naguabo, Comunas, Humacao, Daguao.

How big was it?

This earthquake released about 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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 14,000 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 18.0745, -65.6925. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Humacao Municipio, PR 12 km (7 mi) NW earthquakes near Humacao Municipio
Naguabo Municipio, PR 16 km (10 mi) NNW earthquakes near Naguabo Municipio
Yabucoa Municipio, PR 18 km (11 mi) W earthquakes near Yabucoa Municipio
Ceiba Municipio, PR 21 km (13 mi) NNE earthquakes near Ceiba Municipio
Las Piedras Municipio, PR 23 km (14 mi) WNW earthquakes near Las Piedras Municipio
Maunabo Municipio, PR 23 km (14 mi) WSW earthquakes near Maunabo Municipio

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

Aftershocks so far

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

  1. 2.9 8 km WNW of Culebra, Puerto Rico
  2. 3.1 12 km SE of Emajagua, Puerto Rico
  3. 3.1 16 km SE of Esperanza, Puerto Rico
  4. 3.2 7 km ENE of Fajardo, Puerto Rico
  5. 3.1 2 km SW of Hato Candal, Puerto Rico
  6. 3.1 14 km SSE of Esperanza, Puerto Rico
  7. 2.9 17 km S of Esperanza, Puerto Rico
  8. 2.9 16 km SSE of Esperanza, Puerto Rico
  9. 2.7 24 km SE of Emajagua, Puerto Rico
  10. 2.1 10 km E of El Negro, Puerto Rico
  11. 3.2 11 km SSE of Punta Santiago, Puerto Rico
  12. 2.1 5 km SSE of Bajandas, Puerto Rico
  13. 2.5 14 km N of Isabel Segunda, Puerto Rico
  14. 3.0 6 km SE of Isabel Segunda, Puerto Rico
  15. 2.0 2 km N of Olimpo, 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.