Earthquake · reviewed by a seismologist
M 2.8md
Earthquake near Potala Pastillo, PR
No earthquake was likely felt in Potala Pastillo in the 24 hours to 12:55 pm AST (16:55 UTC). The last one was M 2.2, 6 km (4 mi) NW, at 10:09 am AST on 7 November 2026, estimated intensity II (weak) in town. Every earthquake near Potala Pastillo
This page: a magnitude 2.8 earthquake was recorded 5 km (3 mi) south-southwest of Potala Pastillo, PR, at 4:09 am AST on 30 September 2022 (08:09 UTC), 13 km deep.
USGS: 5 km SSW of Potala Pastillo, Puerto Rico
12 km (8 mi) ESE of Ponce, PR
- When
- 4:09 am AST on 30 September 2022 ()
- Where
- 5 km (3 mi) south-southwest of Potala Pastillo, PR · earthquakes near Potala Pastillo
- Magnitude
- M 2.8 (md)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Juana Díaz Municipio, 6 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1439 days ago
Earthquake alerts for Potala Pastillo, PR
Get a notification in this browser when USGS records an earthquake near Potala Pastillo, 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 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 23 km (14 mi) from the epicentre. In Potala Pastillo, 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: Río Cañas Abajo 11 km, intensity II · Santa Isabel 12 km, intensity II · Ponce 13 km, intensity II · Tallaboa 21 km, intensity II · Tallaboa Alta 22 km, intensity II · Coamo 23 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 430 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.
- Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
- Magna, Utah 2020 M 5.7 25,000× the energy of this one
- Around the size people start to feel M 3.0 2.2× the energy of this one
- This earthquake M 2.8 about 430 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 280,000 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 17.9478, -66.5203. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Juana Díaz Municipio, PR | 6 km (4 mi) | NNE | earthquakes near Juana Díaz Municipio |
| Ponce Municipio, PR | 11 km (7 mi) | WNW | earthquakes near Ponce Municipio |
| Santa Isabel Municipio, PR | 14 km (9 mi) | E | earthquakes near Santa Isabel Municipio |
| Villalba Municipio, PR | 21 km (13 mi) | NNE | earthquakes near Villalba Municipio |
| Peñuelas Municipio, PR | 24 km (15 mi) | WNW | earthquakes near Peñuelas Municipio |
| Coamo Municipio, PR | 24 km (15 mi) | NE | earthquakes near Coamo Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
49 earthquakes have been recorded within 50 km since this one.
- 2.4 4 km SE of Tallaboa Alta, Puerto Rico
- 1.7 4 km ESE of Indios, Puerto Rico
- 1.9 4 km SE of Maria Antonia, Puerto Rico
- 3.0 5 km SW of Central Aguirre, Puerto Rico
- 2.6 0 km NNE of Guánica, Puerto Rico
- 2.8 3 km SSW of Tallaboa, Puerto Rico
- 3.3 5 km SW of Central Aguirre, Puerto Rico
- 2.1 5 km SE of Indios, Puerto Rico
- 3.0 5 km SW of Central Aguirre, Puerto Rico
- 2.3 4 km WSW of Ponce, Puerto Rico
- 2.6 6 km ENE of La Parguera, Puerto Rico
- 2.1 5 km WSW of Guánica, Puerto Rico
- 2.2 0 km S of Guánica, Puerto Rico
- 1.8 2 km S of Indios, Puerto Rico
- 2.2 5 km S of Indios, 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.