QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Indios, PR

No earthquake was likely felt in Indios in the 24 hours to 12:07 pm AST (16:07 UTC). The last one was M 2.0, 3 km (2 mi) SW, at 4:21 am AST on 10 November 2026, estimated intensity II (weak) in town. Every earthquake near Indios

This page: a magnitude 2.0 earthquake was recorded 8 km (5 mi) south-southwest of Indios, PR, at 8:21 pm AST on 22 March 2018 (00:21 UTC), 17 km deep.

USGS: 7 km SSW of Indios, Puerto Rico

24 km (15 mi) WSW of Ponce, PR

8:21 pm AST, Mar 22, 2018 · · 17 km deep · released about 36 lb of TNT

Every earthquake near Indios Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 10 kmGuayanilla Municipio 10 kmPeñuelas Municipio 16 kmYauco Municipio 18 kmSabana Grande Municipio 21 kmLajas Municipio 23 kmPonce Municipio 26 kmSan Germán Municipio 30 kmMaricao Municipio 30 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
8:21 pm AST on 22 March 2018 ()
Where
8 km (5 mi) south-southwest of Indios, PR · earthquakes near Indios
Magnitude
M 2.0 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 10 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3155 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 Indios, 8 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: Maria Antonia, Guánica, Palomas, Fuig, Guayanilla, Yauco.

How big was it?

This earthquake released about 36 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 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 17.9246, -66.8348. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 10 km (6 mi) WNW earthquakes near Guánica Municipio
Guayanilla Municipio, PR 10 km (6 mi) NNE earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 16 km (10 mi) NE earthquakes near Peñuelas Municipio
Yauco Municipio, PR 18 km (11 mi) N earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 21 km (13 mi) NW earthquakes near Sabana Grande Municipio
Lajas Municipio, PR 23 km (14 mi) WNW earthquakes near Lajas Municipio

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

Aftershocks so far

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

  1. 1.9 2 km E of Jayuya, Puerto Rico
  2. 2.1 4 km NNE of Lluveras, Puerto Rico
  3. 1.8 4 km NNE of San Germán, Puerto Rico
  4. 1.9 5 km ESE of Las Marías, Puerto Rico
  5. 1.5 5 km NNW of Yauco, Puerto Rico
  6. 2.4 2 km ESE of Las Marías, Puerto Rico
  7. 1.8 4 km E of Las Marías, Puerto Rico
  8. 2.0 4 km E of Las Marías, Puerto Rico
  9. 1.6 2 km NW of Maricao, Puerto Rico
  10. 1.8 6 km NW of Boquerón, Puerto Rico
  11. 1.9 6 km NE of Maricao, Puerto Rico
  12. 2.1 4 km NE of Maricao, Puerto Rico
  13. 2.3 4 km ESE of Las Marías, Puerto Rico
  14. 2.2 3 km ENE of Las Marías, Puerto Rico
  15. 1.7 4 km ESE of Boquerón, 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.