Earthquake · reviewed by a seismologist
M 1.9md
Earthquake near Magas Arriba, PR
Yes: an earthquake was likely felt in Magas Arriba in the last 24 hours. M 2.1, 9 km (5 mi) WSW of Magas Arriba, at 4:14 pm AST on 11 November 2026 (20:14 UTC); the estimated shaking in Magas Arriba was intensity II (weak). Every earthquake near Magas Arriba
This page: a magnitude 1.9 earthquake was recorded 3 km (2 mi) east-northeast of Magas Arriba, PR, at 8:36 am AST on 7 January 2020 (12:36 UTC), 13 km deep.
USGS: 3 km ENE of Magas Arriba, Puerto Rico
13 km (8 mi) WNW of Ponce, PR
- When
- 8:36 am AST on 7 January 2020 ()
- Where
- 3 km (2 mi) east-northeast of Magas Arriba, PR · earthquakes near Magas Arriba
- Magnitude
- M 1.9 (md)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Peñuelas Municipio, 1 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2406 days ago
Earthquake alerts for Magas Arriba, PR
Get a notification in this browser when USGS records an earthquake near Magas Arriba, PR. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Magas Arriba, 3 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.
Likely felt in: Magas Arriba 3 km, intensity II · Tallaboa 5 km, intensity II · Tallaboa Alta 5 km, intensity II · Guayanilla 6 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 25 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.
- Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
- Magna, Utah 2020 M 5.7 420,000× the energy of this one
- Around the size people start to feel M 3.0 38× the energy of this one
- This earthquake M 1.9 about 25 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 4,700,000 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 18.0288, -66.7400. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Peñuelas Municipio, PR | 1 km (1 mi) | E | earthquakes near Peñuelas Municipio |
| Guayanilla Municipio, PR | 7 km (4 mi) | WSW | earthquakes near Guayanilla Municipio |
| Yauco Municipio, PR | 14 km (9 mi) | WNW | earthquakes near Yauco Municipio |
| Ponce Municipio, PR | 14 km (9 mi) | ESE | earthquakes near Ponce Municipio |
| Adjuntas Municipio, PR | 17 km (11 mi) | N | earthquakes near Adjuntas Municipio |
| Guánica Municipio, PR | 21 km (13 mi) | WSW | earthquakes near Guánica Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 2.5 0 km NNW of Guayanilla, Puerto Rico
- 1.7 9 km SSE of Indios, Puerto Rico
- 2.5 1 km E of Indios, Puerto Rico
- 2.8 Puerto Rico region
- 1.9 10 km S of Guánica, Puerto Rico
- 2.3 26 km SSE of Tallaboa, Puerto Rico
- 2.8 Puerto Rico region
- 2.0 7 km S of Tallaboa, Puerto Rico
- 1.8 1 km SSE of Guayanilla, Puerto Rico
- 1.8 2 km NNW of Magas Arriba, Puerto Rico
- 2.4 6 km SW of Tallaboa, Puerto Rico
- 1.8 8 km SSW of Guánica, Puerto Rico
- 2.8 1 km NNW of Magas Arriba, Puerto Rico
- 2.9 8 km SSE of Indios, Puerto Rico
- 1.8 7 km SSE of Guánica, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.