QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

Earthquake near Indios, PR

Yes: an earthquake was likely felt in Indios in the last 24 hours. M 2.4, 13 km (8 mi) WSW of Indios, at 3:43 pm AST on 11 November 2026 (19:43 UTC); the estimated shaking in Indios was intensity II (weak). Every earthquake near Indios

This page: a magnitude 2.9 earthquake was recorded 5 km (3 mi) south of Indios, PR, at 11:08 am AST on 15 September 2020 (15:08 UTC), 10 km deep.

USGS: 5 km S of Indios, Puerto Rico

21 km (13 mi) WSW of Ponce, PR

11:08 am AST, Sep 15, 2020 · · 10 km deep · released about 720 lb of TNT

Every earthquake near Indios Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guayanilla Municipio 7 kmGuánica Municipio 11 kmPeñuelas Municipio 13 kmYauco Municipio 16 kmSabana Grande Municipio 21 kmPonce Municipio 23 kmLajas Municipio 24 kmAdjuntas Municipio 27 kmMaricao Municipio 28 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
11:08 am AST on 15 September 2020 ()
Where
5 km (3 mi) south of Indios, PR · earthquakes near Indios
Magnitude
M 2.9 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 7 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2248 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 31 km (19 mi) from the epicentre. In Indios, 5 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: Guayanilla 8 km, intensity III · Magas Arriba 9 km, intensity III · Yauco 10 km, intensity III · Tallaboa 12 km, intensity III · Tallaboa Alta 17 km, intensity II · Ponce 22 km, intensity II · Adjuntas 26 km, intensity II · San Germán 28 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 720 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 21,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 15,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.3× the energy of this one
  4. This earthquake M 2.9 about 720 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 6.4 on 2020-01-07 — about 170,000 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 17.9470, -66.8163. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guayanilla Municipio, PR 7 km (4 mi) NNE earthquakes near Guayanilla Municipio
Guánica Municipio, PR 11 km (7 mi) W earthquakes near Guánica Municipio
Peñuelas Municipio, PR 13 km (8 mi) NE earthquakes near Peñuelas Municipio
Yauco Municipio, PR 16 km (10 mi) NNW earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 21 km (13 mi) NW earthquakes near Sabana Grande Municipio
Ponce Municipio, PR 23 km (14 mi) ENE earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 2.4 5 km WSW of Guánica, Puerto Rico
  2. 2.1 10 km SSE of Guánica, Puerto Rico
  3. 2.7 10 km SSE of Ponce, Puerto Rico
  4. 2.7 5 km SSW of Guánica, Puerto Rico
  5. 2.8 8 km SSE of Guánica, Puerto Rico
  6. 2.7 4 km SSE of Guánica, Puerto Rico
  7. 2.5 7 km WSW of Guánica, Puerto Rico
  8. 2.2 2 km NW of Indios, Puerto Rico
  9. 2.7 4 km SSW of Indios, Puerto Rico
  10. 2.5 11 km SSE of Maria Antonia, Puerto Rico
  11. 2.7 1 km ESE of Maria Antonia, Puerto Rico
  12. 2.1 4 km SW of Indios, Puerto Rico
  13. 2.4 3 km ESE of Maria Antonia, Puerto Rico
  14. 2.4 7 km WSW of Fuig, Puerto Rico
  15. 2.9 2 km W of Tallaboa, 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.